abacoellus, Opisthosiphon bahamiense abacoellus Bartsch
abacoensis, Opisthosiphon simpsoni abacoensis Bartsch
abbotti, Abbottella abbotti Bartsch, 1946
aberrans, Annularisca aberrans Torre & Bartsch, 1941
abnatum, Chondropoma abnatum (Gundlach in Pfeiffer, 1858)
abronensis, Chondrothyrella assimilis abronensis Torre & Bartsch
abtiana, Tudora abtiana (Pfeiffer, 1862)
acerbulum, Cyclostoma acerbulum Morelet, 1851 - syn of: Chondropomium rubicundum (Morelet, 1849)
acervata, Annularops coronadoi acervata Arango
achatinum, Cyclostoma achatinum Lamarck, 1812 - syn of: Viviparus viviparus (Linnaeus, 1758)
acklinsense, Chondropoma glabratum acklinsense Bartsch
acklinsensis, Opisthosiphon acklinsensis Bartsch, 1946
aculeosa, Annularia hilliana aculeosa Adams
acutum, Cyclostoma acutum Draparnaud, 1805 - syn of: Hydrobia acuta (Draparnaud, 1805)
adamsi, Parachondria adamsi (Pfeiffer)
adjuntus, Pomatias adjuntus Mousson, 1872 - syn of: Pomatias canariensis (D'Orbigny, 1840)
adolfi, Abbottella adolfi Pfeiffer, 1858 - syn of: Abbottella adolphi (Pfeiffer, 1858)
adolphi, Abbottella adolphi (Pfeiffer, 1858)
adolphi peninsularis, Abbottella adolphi peninsularis Bartsch, 1946
aenea, Abbottella aenea Watters, 2010
affine, Chondropometes torrei affine Torre & Bartsch
affinis, Chondrothyretes affinis Torre & Bartsch, 1938
agassizi, Eutudora agassizi (Charpentier in Pfeiffer, 1852)
agrestis, Troschelvindex agrestis (Pfeiffer, 1862)
aguadillensis, Licina aguadillensis (Pfeiffer, 1875)
aguadillensis penoensis, Licina aguadillensis penoensis Baker, 1940
aguadillensis turneri, Licina aguadillensis turneri (Clench)
aguayoi, Xenopoma aguayoi (Torre & Bartsch, 1941)
aguayoi, Wrightudora aguayoi (Torre & Bartsch, 1941)
aguayoi, Chondrothyrium torrei aguayoi Jaume & Sánchez De Fuentes
aguayoi, Diplopoma architectonica aguayoi Sánchez Roig
aguayoi, Opisthosiphon plicatum aguayoi Sánchez Roig
aguayoi guaicanamarensis, Wrightudora aguayoi guaicanamarensis (Torre & Bartsch, 1941)
aguayoi luacesi, Wrightudora aguayoi luacesi Sánchez Roig, 1951
aguayoi najazaensis, Wrightudora aguayoi najazaensis (Torre & Bartsch, 1941)
aguilerianum, Bermudezsiphona aguilerianum (Arango & Molina, 1876)
aguilerianum holguinense, Bermudezsiphona aguilerianum holguinense Aguayo, 1932 - syn of: Bermudezsiphona aguilerianum (Arango & Molina, 1876)
alata, Annularisca alata (Pfeiffer, 1851)
alayoi, Annularisca alayoi (Jaume, 1984)
alayoi, Troschelvindex alayoi Aguayo & Jaume, 1947
alayoi, Chondropoma alayoi Aguayo & Jaume, 1957
alba, Chondrothyra rutila alba Sánchez Roig
alberti, Chondropoma alberti Clench & Aguayo, 1948
albicans, Otopoma albicans (Gray & Sowerby, 1839)
albicans balfouri, Otopoma albicans balfouri (Godwin-Austen, 1881)
albida, Cyclostoma albida Hombron & Jacquinot, 0 - syn of: Ostodes strigatus (Gould, 1847)
albida, Chondrothyretes cerina albida Sánchez Roig
albinodata, Annularia fimbriatula albinodata Adams
albinonodatum, Annularia albinonodatum Adams, 1851 - syn of: Annularia fimbriatula albinodata (Adams, 1851)
albolabris, Chondrothyretes tenebrata albolabris Torre & Bartsch
albostoma, Chondrothyretes impressa albostoma Torre & Bartsch
albus, Colobostylus albus (Sowerby, 1843)
albus fuscus, Colobostylus albus fuscus (Adams, 1851)
alcaldei, Annularisca holguinensis alcaldei Aguayo & Sánchez Roig
alcaldei, Chondrothyrium alcaldei Jaume & Sánchez De Fuentes, 1943
alleni, Opisthosiphon alleni Bartsch, 1946
alleni, Chondropoma canescens alleni Torre & Bartsch
alleni providentialis, Opisthosiphon alleni providentialis Bartsch, 1946
alluaudi, Tropidophora alluaudi Dautzenberg, 1894
alluaudi pallida, Tropidophora alluaudi pallida Dautzenberg, 1894
alluaudi saturata, Tropidophora alluaudi saturata Dautzenberg, 1894
almiqui, Chondrothyra detectabilis almiqui Sánchez Roig
alveare, Chondropometes torrei alveare Torre & Bartsch
alyshae, Chondropomium alyshae Watters & Duffy, 2010
amabilis, Annularia scabriuscula amabilis Adams
amabilis, Chondrothyra detectabilis amabilis Torre & Bartsch
amanda, Annularia hilliana amanda Adams
ambiguum, Pomatias ambiguum Delessert, 1841 - syn of: Colobostylus interruptus (Lamarck, 1822)
ambilobeensis, Tropidophora ambilobeensis Fischer-Piette, Blanc & Salvat, 1969
ambodiarensis, Tropidophora tricarinata ambodiarensis Fischer-Piette, Blanc, Blanc & Salvat
amoena, Chondrothyretes parilis amoena Torre & Bartsch
anafense, Chondropoma pictum anafense Torre & Bartsch
anafense, Rhytidopoma nodulatum anafense Torre & Bartsch
anafensis, Chondrothyrella petricosa anafensis Torre & Bartsch
anatolensis, Parachondria anatolensis Watters, 2016
anceps, Tropidophora anceps (Von Martens, 1878)
andrakarakarensis, Tropidophora andrakarakarensis Fischer-Piette & Testud, 1973
andrapangana, Tropidophora andrapangana Fischer-Piette, Blanc & Salvat, 1969
andreas, Hendersonina canaliculata andreas Torre & Bartsch
andrewsae, Choanopomops andrewsae (Ancey, 1886)
andrewsae roatanense, Choanopoma andrewsae roatanense Richards, 1938 - syn of: Choanopomops andrewsae (Ancey, 1886)
andrewsi, Choanopoma andrewsi (Ancey, 1886)
andrewsi, Opisthosiphon andrewsi Welch, 1929
andrewsi roatanensis, Choanopoma andrewsi roatanensis Richards, 1938
androsense, Opisthosiphon androsense Pilsbry, 1930
angustae, Parachondria angustae Adams, 1849 - syn of: Parachondria augustae (Adams, 1849)
angustatum, Chondropoma angustatum Pfeiffer
angusti, Opisthosiphon caroli angusti Clench & Aguayo
angusticulum, Chondropometes eximium angusticulum Torre & Bartsch
anomala, Annularia anomala (Adams, 1850)
antiguaense, Adamsiella antiguaense (Shuttleworth, 1858)
antiguense, Adamsiella antiguense Shuttleworth, 1858 - syn of: Adamsiella antiguaense (Shuttleworth, 1858)
antiquum, Cyclostoma antiquum Deshayes, 1874 † - syn of: Cyclostoma squamosum Peyrot, 1933 † (FOSSIL)
antiquus, Pomatias antiquus (Brongniart, 1810) † (FOSSIL)
antiquus schneidi, Pomatias antiquus schneidi (Jooss, 1912) † (FOSSIL)
antonense, Chondropoma antonense Torre & Bartsch, 1938
antoniense, Chondropometes torrei antoniense Torre & Bartsch
antoniensis, Eutudorops troscheli antoniensis Torre & Bartsch
antonitense, Chondropometes torrei antonitense Torre & Bartsch
apennina, Pomatias apennina Kobelt, 1903 - syn of: Pomatias elegans (Müller, 1774)
apertum, Opisthosiphon apertum Torre & Henderson, 1920
apertum escalerasensis, Opisthosiphon apertum escalerasensis Torre & Henderson, 1920 - syn of: Opisthosiphon apertum escalerense Torre & Henderson, 1920
apertum escalerense, Opisthosiphon apertum escalerense Torre & Henderson, 1920
apertura, Opisthosiphon apertura Torre & Henderson, 1920 - syn of: Opisthosiphon apertum Torre & Henderson, 1920
apiae, Cyclostoma apiae Récluz, 0 - syn of: Ostodes plicatus (Gould, 1847)
aplustre, Tropidophora semidecussata aplustre Sowerby
appendiculatum, Chondropoma laetum appendiculatum Torre & Bartsch
aquadillensis, Licina aquadillensis Pfeiffer, 1875 - syn of: Licina aguadillensis (Pfeiffer, 1875)
arangiana, Troschelvindex arangiana (Gundlach in Pfeiffer, 1857)
arangiana cautoensis, Troschelvindex arangiana cautoensis (Torre & Bartsch, 1941)
arangiana magistra, Troschelvindex arangiana magistra (Torre & Bartsch, 1941)
arangiana turquinensis, Troschelvindex arangiana turquinensis Sánchez Roig, 1951
arangoi, Diplopoma arangoi (Jaume, 1984)
arangoi, Chondropoma pictum arangoi Torre & Bartsch
arangoi, Chondropometes segregatum arangoi Torre & Bartsch
arcahaiense, Weinlandipoma gonavense arcahaiense Bartsch
architectonica, Diplopoma architectonica (Gundlach in Pfeiffer, 1859)
architectonica aguayoi, Diplopoma architectonica aguayoi Sánchez Roig, 1951
architectonica libanoensis, Diplopoma architectonica libanoensis (Torre & Bartsch, 1941)
architectonica tanamensis, Diplopoma architectonica tanamensis (Torre & Bartsch, 1941)
arcisensis, Parachondria arcisensis Watters, 2016
arcticoronata, Wrightudora arcticoronata (Torre & Bartsch, 1941)
arena, Parachondria arena Adams, 1849 - syn of: Parachondria avena (Adams, 1849)
arenarium, Tessaripoma arenarium Watters, 2016
arguta, Juannularia arguta (Pfeiffer, 1858)
arguta insularis, Juannularia arguta insularis (Torre & Bartsch, 1941)
arguta perplicata, Juannularia arguta perplicata (Gundlach, 1857)
arieli, Chondropoma moestum arieli Aguayo & Jaume
aripensis, Adamsiella aripensis (Guppy, 1864)
armasi, Annularisca armasi (Jaume, 1984)
armata, Parachondria armata (Adams, 1849)
armouri, Chondropoma beatensis armouri Clench
arneggensis, Pomatias arneggensis Wenz, 1923 † (FOSSIL)
arquesi, Annularisca arquesi Torre & Bartsch, 1941
artemisensis, Rhytidopoma clathratum artemisensis Torre & Bartsch
articulata, Tropidophora articulata (Gray, 1838)
articulatum, Pomatias articulatum Sowerby, 1843 - syn of: Adamsiella variabilis (Adams, 1849)
artuffeli, Otopoma artuffeli Jousseaume, 1882
arubana, Tudora fossor arubana Baker
arubana, Cistulops arubana Baker, 1924
aspera, Tropidophora aspera (Potiez & Michaud, 1838)
asperata, Wrightudora asperata (Torre & Bartsch, 1941)
asperulum, Chondropoma edouardi asperulum Aguayo
asperulum, Chondropoma asperulum Aguayo, 1934
asperulum jausi, Chondropoma asperulum jausi Aguayo, 1934
aspratile, Chondropoma aspratile Morelet, 1873
assimilis, Chondrothyrella assimilis (Gundlach, 1863)
assimilis abronensis, Chondrothyrella assimilis abronensis Torre & Bartsch, 1938
assimilis cisnerosi, Chondrothyrella assimilis cisnerosi Torre & Bartsch, 1938
assimilis gemma, Chondrothyrella assimilis gemma Torre & Bartsch, 1938
assimilis guirensis, Chondrothyrella assimilis guirensis Torre & Bartsch, 1938
assimilis maceoi, Chondrothyrella assimilis maceoi Torre & Bartsch, 1938
assimilis signata, Chondrothyrella assimilis signata Torre & Bartsch, 1938
asymmetricum, Chondropoma asymmetricum Pilsbry, 1933
atkinsi, Chondrothyrium violaceum atkinsi Torre & Bartsch
atriola, Chondrothyretes shuttleworthi atriola Torre & Bartsch
atristoma, Chondrothyra atristoma Torre & Bartsch, 1938
atristoma luctifera, Chondrothyra atristoma luctifera Torre & Bartsch, 1938
atristoma umbrata, Chondrothyra atristoma umbrata Torre & Bartsch, 1938
attenuata, Annularops attenuata (Torre & Bartsch, 1941)
attenuata minaensis, Annularops attenuata minaensis (Torre & Bartsch, 1941)
attenuata morsei, Annularops attenuata morsei (Torre & Bartsch, 1941)
auberianum, Chondropoma auberianum (D'Orbigny, 1842)
auberianum mayense, Chondropoma auberianum mayense Torre & Bartsch, 1938
augustae, Parachondria augustae (Adams, 1849)
augustae, Parachondria fascia augustae Henderson
augustae rufilabre, Pomatias augustae rufilabre Adams, 1851 - syn of: Parachondria fascia augustae (Henderson, 1901)
augustae rufilabris, Parachondria augustae rufilabris (Adams, 1849)
augustae testudineum, Pomatias augustae testudineum Adams, 1851 - syn of: Parachondria fascia augustae (Henderson, 1901)
aurantia, Tudora aurantia (Wood, 1828)
aurantia, Chondrothyra tosta aurantia Torre & Bartsch
aurantia wassauensis, Tudora aurantia wassauensis Baker, 1924
aurantiaca, Chondrothyretes incrassata aurantiaca Torre & Bartsch
aurantiaca, Rhytidothyra bilabiata aurantiaca Torre & Bartsch
auricoma, Annularisca auricoma (Gundlach in Pfeiffer, 1859)
auricoma putre, Annularisca auricoma putre (Gundlach, 1859)
auriculata, Limadora garciana auriculata Aguayo
auriculatum, Cyclostoma auriculatum Sowerby, 0 - syn of: Farcimen bituberculatum minor Kobelt, 1902
auriferum, Troschelvindex auriferum Aguayo, 1953 - syn of: Troschelvindex auriflexum Aguayo, 1953
auriflexum, Troschelvindex auriflexum Aguayo, 1953
aurora, Parachondria maritima aurora Adams
aurora, Parachondria aurora Adams, 1846 - syn of: Parachondria maritima aurora (Adams, 1846)
avena, Parachondria avena (Adams, 1849)
avena fraterminor, Parachondria avena fraterminor Pilsbry & Brown, 1910
ayuensis, Chondrothyretes tenebrata ayuensis Torre & Bartsch
azucarellum, Chondropometes vignalense azucarellum Torre & Bartsch
azucarense, Chondropometes vignalense azucarense Torre & Bartsch
azucarensis, Eutudorops troscheli azucarensis Torre & Bartsch
azuense, Chondropoma swifti azuense Bartsch
bacillum, Opisthosiphon bacillum Torre & Bartsch, 1941
bacillum garciai, Opisthosiphon bacillum garciai Torre & Bartsch, 1941
bacillum vallei, Opisthosiphon bacillum vallei Aguayo & Jaume, 1954
bahamensis, Opisthosiphon bahamensis Shuttleworth, 1865 - syn of: Opisthosiphon bahamiense (Shuttleworth, 1865)
bahamiense, Opisthosiphon bahamiense (Shuttleworth, 1865)
bahamiense abacoellus, Opisthosiphon bahamiense abacoellus Bartsch, 1946
bahamiense exumaensis, Opisthosiphon bahamiense exumaensis Bartsch, 1946
bahamiense insulaefelis, Opisthosiphon bahamiense insulaefelis Clench, 1938
bairense, Chondropoma bairense Torre & Bartsch, 1938
bairensis, Troschelvindex jiguanensis bairensis Torre & Bartsch
balfouri, Tropidophora balfouri (Godwin-Austen, 1881)
balfouri, Otopoma albicans balfouri Godwin-Austen
balteatum, Tropidophora balteatum (Sowerby, 1873)
banaoense, Chondrothyrium violaceum banaoense Torre & Bartsch
banaoense, Opisthosiphon banaoense Torre & Henderson, 1921
banaoense trincherasense, Opisthosiphon banaoense trincherasense Torre & Bartsch, 1941
banensis, Wrightudora banensis Aguayo, 1944
banesense, Chondropoma solidulum banesense Aguayo
banksianus, Colobostylus banksianus (Sowerby, 1843)
banksianus hyacinthinus, Colobostylus banksianus hyacinthinus (Adams)
baracoensis, Chondropoma chordatum baracoensis Torre & Bartsch
baracoensis, Wrightudora garridoiana baracoensis Torre & Bartsch
barahonense, Chondropoma swifti barahonense Bartsch
barbouri, Troschelvindex barbouri (Torre & Bartsch, 1941)
barbouri, Chondrothyretes barbouri Torre & Bartsch, 1938
barbouri itineraria, Chondrothyretes barbouri itineraria (Torre & Bartsch, 1938)
barclayana, Tropidophora barclayana Pfeiffer, 1851
barklyana, Parachondria barklyana (Chitty, 1853)
barreti, Wrightudora recta barreti Torre & Bartsch
barroi, Rhytidopoma honestum barroi Aguayo & Jaume
barroi, Eutudorops undosa barroi Torre & Bartsch
basicarinatum, Chondropoma basicarinatum (Pfeiffer, 1855)
bathiei, Tropidophora bathiei Fischer-Piette, 1949
bayatense, Chondropoma dilatatum bayatense Torre & Bartsch
beatensis, Chondropoma beatensis Clench, 1932
beatensis armouri, Chondropoma beatensis armouri Clench, 1932
bebini, Troschelvindex bebini (Arango, 1865)
belairi, Tropidophora belairi (Petit De La Saussaye, 1853)
bellamaria, Chondrothyra detectabilis bellamaria Torre & Bartsch
bellisimum, Chondropometes bellisimum Torre & Bartsch, 1938 - syn of: Chondropometes bellissimum Torre & Bartsch, 1938
bellissimum, Chondropometes bellissimum Torre & Bartsch, 1938
bellum, Chondropometes bellum Torré
bemaraensis, Tropidophora bemaraensis Fischer-Piette, 1949
beneitoi, Cubadamsiella beneitoi Fernández-Garcés, Espinosa & Ortea, 2003
bentiana, Georgia bentiana Melvill, 1895
bentii, Lithidion bentii Smith, 1897
bermudezi, Bermudezsiphona bermudezi (Torre & Bartsch, 1941)
bermudezi, Bermudezia bermudezi (Torre & Bartsch, 1941)
bermudezi, Wrightudora bermudezi (Torre & Bartsch, 1941)
bermudezi, Hendersonina bermudezi Torre & Bartsch, 1938
bermudezi, Chondropoma yucayum bermudezi Torre & Sánchez De Fuentes
bermudezi sibanicuensis, Bermudezia bermudezi sibanicuensis (Torre & Bartsch, 1941)
bermudezi zanjonensis, Bermudezia bermudezi zanjonensis Sánchez Roig, 1951
berryi, Opisthosiphon berryi Clapp, 1919
berryi transitorium, Opisthosiphon berryi transitorium Torre & Henderson, 1921
berryi viguetense, Opisthosiphon berryi viguetense Torre & Bartsch, 1941
bertini, Christophipoma bertini (Maltzan, 1888)
bertini gracillima, Christophipoma bertini gracillima (Maltzan, 1888)
besalampiensis, Tropidophora besalampiensis Fischer-Piette, 1945
betsileoensis, Tropidophora betsileoensis Smith, 1882 - syn of: Tropidophora betsiloensis Smith, 1882
betsiloensis, Tropidophora betsiloensis Smith, 1882
beviae, Cyclotopsis beviae (Fischer-Piette, Blanc, Blanc & Salvat, 1993)
biangulatum, Cyclostoma biangulatum Pease, 1865 - syn of: Garrettia biangulata (Pease, 1865)
biayensis, Bermudezia biayensis (Torre & Bartsch, 1941)
bibijaguaense, Opisthosiphon pupoides bibijaguaense Torre & Bartsch
bibijaguense, Chondropoma vespertinum bibijaguense Torre & Bartsch
bicarinata, Tropidophora tricarinata bicarinata Sowerby
bicolor, Hendersonina discolorans bicolor Torre & Bartsch
bielanensis, Pomatias conicus bielanensis Lomnicki (FOSSIL)
biforme, Chondropoma biforme Pfeiffer
biforme cometense, Chondropoma biforme cometense Bartsch, 1946
biforme cottonense, Chondropoma biforme cottonense Bartsch, 1946
biforme gambelense, Chondropoma biforme gambelense Bartsch, 1946
biforme neyi, Chondropoma biforme neyi Bartsch, 1946
biforme planaense, Chondropoma biforme planaense Bartsch, 1946
biforme salarium, Chondropoma biforme salarium Bartsch, 1946
biforme sulaense, Chondropoma biforme sulaense Bartsch, 1946
bilabiata, Rhytidothyra bilabiata (D'Orbigny, 1842)
bilabiata aurantiaca, Rhytidothyra bilabiata aurantiaca Torre & Bartsch, 1941
bilabiata nana, Rhytidothyra bilabiata nana Torre & Bartsch, 1941
bilabiata rosacea, Rhytidothyra bilabiata rosacea Torre & Bartsch, 1941
bilabiata rosea, Rhytidothyra bilabiata rosea Torre & Bartsch, 1941
bilabiata straminea, Rhytidothyra bilabiata straminea Torre & Bartsch, 1941
binneyanum, Pomatias binneyanum Pfeiffer, 1846 - syn of: Adamsiella pulchrior (Adams, 1845)
bioscai, Opisthosiphon bioscai Torre & Henderson, 1920
biserranum, Chondropoma revinctum biserranum Torre & Bartsch
bisulcatum, Cyclostoma bisulcatum Zieten, 1909 † - syn of: Cyclostoma squamosum Peyrot, 1933 † (FOSSIL)
bisulcatus, Pomatias bisulcatus (von Zieten, 1832) † (FOSSIL)
blaini, Choanopoma blaini (Gundlach in Pfeiffer, 1863)
blaini cumbrensis, Choanopoma blaini cumbrensis (Torre & Bartsch, 1941)
blanchardi, Rhytidopoma rollei blanchardi Bartsch
blandi, Weinlandipoma blandi (Weinland, 1862)
blandiana, Annularia lima blandiana Adams
blanesi, Eutudora catenata blanesi Torre & Bartsch
blauneri, Chondropoma blauneri Shuttleworth, 1854
blennus, Otopoma blennus Benson, 1856 - syn of: Pollicaria gravida (Benson, 1856)
boiteli, Leonia jolyi boiteli Pallary
bombardopolensis, Gundlachtudora bombardopolensis Bartsch, 1946
bonacheum, Chondropoma delatreanum bonacheum Torre & Bartsch
booneae, Chondropoma textum booneae Welch
boqueroensis, Annularia boqueroensis Torre & Bartsch, 1941 - syn of: Annularia boqueronensis (Torre & Bartsch, 1941)
boqueronensis, Annularia boqueronensis (Torre & Bartsch, 1941)
borroi, Annularisca borroi (Jaume, 1984)
borroi, Chondrothyrium borroi Jaume & Sánchez De Fuentes, 1943
boucheti, Tropidophora boucheti Fischer-Piette, Blanc, Blanc & Salvat, 1993
bourguignati, Ligatella bourguignati Neubert, 2009
braueri, Pomatias braueri Wagner, 1897 - syn of: Cochlostoma braueri (Wagner, 1897)
breve, Cyclostoma breve Draparnaud, 1805 - syn of: Avenionia brevis (Draparnaud, 1805)
breviauris, Chondropoma laetum breviauris Aguayo
brevilabris, Wrightudora enode brevilabris Aguayo
brevimargo, Tropidophora tricarinata brevimargo Mousson
brevior, Chondrothyretes tenebrata brevior Torre & Bartsch
britoi, Eutudora limbifera britoi Jaume & Sánchez De Fuentes
brittoni, Chondropoma nicolasi brittoni Torre & Bartsch
bronnii, Colobostylus bronnii (Adams, 1845)
bronnii, Pomatias bronnii Pfeiffer, 1846 - syn of: Colobostylus bronnii (Adams, 1845)
brownianum, Chondropoma brownianum Weinland, 1880
bruneocinctum, Chondropometes vignalense bruneocinctum Torre & Bartsch
buccinulum, Leonia buccinulum (Bolten)
bucephalos, Lithidion bucephalos Neubert, 2009
bufo, Ramsdenia bufo (Pfeiffer, 1864)
bullenensis, Tudora muskusi bullenensis Baker
caballosense, Chondropoma vespertinum caballosense Torre & Bartsch
cabaretense, Hispanipoma quaternatum cabaretense Bartsch
cabrasense, Rhytidopoma wrightianum cabrasense Torre & Bartsch
cabrerai, Eutudora cabrerai (Torre & Bartsch, 1941)
cabrerai, Chondropoma cabrerai Torre & Bartsch, 1938
caguanense, Opisthosiphon caguanense Torre & Bartsch, 1941
caimitensis, Chondrothyrella tenebrosa caimitensis Torre & Bartsch
calcarea, Tropidophora calcarea (Sowerby, 1843)
calliotropis, Abbottella calliotropis Watters, 2013
callipeplum, Chondropomium callipeplum Solem, 1961
camagueyana, Tudora camagueyana (Torré)
camajanense, Opisthosiphon palmeri camajanense Torre & Bartsch
camaronense, Chondropoma irradians camaronense Torre & Bartsch
camaronensis, Torrella immersa camaronensis Torre & Bartsch
camoense, Chondropoma pfeifferianum camoense Torre & Bartsch
camoensis, Eutudora camoensis (Torre & Bartsch, 1941)
campanulata, Tropidophora campanulata (Pfeiffer, 1846)
campbellii, Parachondria campbellii (Adams, 1851)
canaletensis, Chondrothyretes tenebrata canaletensis Torre & Bartsch
canaliculata, Hendersonina canaliculata (Gundlach, 1863)
canaliculata andreas, Hendersonina canaliculata andreas (Torre & Bartsch, 1938)
canaliculata dominguezi, Hendersonina canaliculata dominguezi Aguayo & Jaume, 1948
canaliculata pinalillensis, Hendersonina canaliculata pinalillensis (Torre & Bartsch, 1938)
canaliculata saguaensis, Hendersonina canaliculata saguaensis (Torre & Bartsch, 1938)
canapuensis, Annularisca mayariensis canapuensis Torre & Bartsch
canariensis, Pomatias canariensis (D'Orbigny, 1840)
canashitensis, Tudora fossor canashitensis Baker
canashitensis, Tudora canashitensis Baker, 1924 - syn of: Tudora fossor canashitensis (Baker, 1924)
canasiense, Chondropoma presasianum canasiense Torre & Bartsch
candeanum, Chondropoma candeanum (D'Orbigny, 1842)
candeanum fallax, Chondropoma candeanum fallax (Torre & Bartsch, 1941)
candelaense, Rhytidopoma clathratum candelaense Torre & Bartsch
candicans, Chondropoma irradians candicans Torre & Bartsch
canescens, Chondropoma canescens Pfeiffer, 1851
canescens alleni, Chondropoma canescens alleni Torre & Bartsch, 1938
canescens nassauense, Chondropoma canescens nassauense Bartsch, 1946
canescens nipense, Chondropoma canescens nipense Torre & Bartsch, 1938
canescens perplexa, Chondropoma canescens perplexa Torre & Bartsch, 1938
canetensis, Ramsdenia natensoni canetensis Torre & Bartsch
canoaensis, Annularia canoaensis (Torre & Bartsch, 1941)
cantarillensis, Annularia cantarillensis (Torre & Bartsch, 1941)
cantilense, Chondropoma carenasense cantilense Torre & Bartsch
capestanyi, Bermudezia capestanyi (Torre & Bartsch, 1941)
capillacea, Parachondria capillacea (Pfeiffer)
caponense, Chondropometes vignalense caponense Torre & Bartsch
caprinus, Opisthosiphon turiguanoense caprinus Sánchez Roig
carenasense, Chondropoma carenasense Pilsbry & Henderson, 1912
carenasense cantilense, Chondropoma carenasense cantilense Torre & Bartsch, 1938
carenasense corrientesense, Chondropoma carenasense corrientesense Torre & Bartsch, 1938
carenasense guauraboense, Chondropoma carenasense guauraboense Torre & Bartsch, 1938
carenasense rosariense, Chondropoma carenasense rosariense Torre & Bartsch, 1938
carenasense toroense, Chondropoma carenasense toroense Torre & Bartsch, 1938
caribbaeum, Chondropoma caribbaeum Clapp, 1914
caribbeum, Chondropoma caribbeum Clapp, 1914 - syn of: Chondropoma caribbaeum Clapp, 1914
caricae, Chondropoma caricae Pfeiffer
carinata, Tropidophora carinata (Born, 1780)
carnicolor, Tropidophora carnicolor Fulton, 1902
carnicolor, Chondropometes concolor carnicolor Torre & Bartsch
caroli, Opisthosiphon caroli Aguayo, 1932
caroli, Chondrothyrella cuzcoensis caroli Torre & Bartsch
caroli angusti, Opisthosiphon caroli angusti Clench & Aguayo, 1949
carolis, Chondrothyrella cuzcoensis carolis Torre & Bartsch
caspius, Cyclostoma caspius Mousson, 1876 - syn of: Pomatias hyrcanum (Von Martens, 1874)
castellanoi, Annularisca victoris castellanoi Aguayo
catalinensis, Chondrothyretes shuttleworthi catalinensis Torre & Bartsch
catalinensis, Annularita majuscula catalinensis Torre & Bartsch
catalinitense, Chondropomium eusarcum catalinitense Bartsch
catenata, Eutudora catenata (Gould, 1843)
catenata blanesi, Eutudora catenata blanesi (Torre & Bartsch, 1941)
catenata pipianensis, Eutudora catenata pipianensis Aguayo & Jaume, 1954
catharina, Chondrothyra cumbrensis catharina Torre & Bartsch
cautoensis, Troschelvindex arangiana cautoensis Torre & Bartsch
cavernarum, Ligatella cavernarum Fischer-Piette, Blanc & Salvat, 1969
cavernarum majungana, Ligatella cavernarum majungana Fischer-Piette, Blanc, Blanc & Salvat, 1993
cayemitense, Rhytidopoma rollei cayemitense Bartsch
cayemitensis, Parachondria umbricola cayemitensis Weinland
cayesense, Rhytidopoma jacmelense cayesense Bartsch
caymanbracensis, Chondropoma caymanbracensis Pilsbry, 1930
caymanbracensis parvicaymanense, Chondropoma caymanbracensis parvicaymanense Pilsbry, 1930
caymanense, Chondropoma caymanense Preston, 1911
celadense, Chondropometes vignalense celadense Torre & Bartsch
celsum, Chondropoma pictum celsum Torre & Bartsch
cereum, Chondropometes exquisitum cereum Torre & Bartsch
cerina, Chondrothyretes cerina Torre & Bartsch, 1938
cerina albida, Chondrothyretes cerina albida Sánchez Roig, 1951
cerina martillensis, Chondrothyretes cerina martillensis Sánchez Roig, 1951
cerina polita, Chondrothyretes cerina polita (Torre & Bartsch, 1938)
cerina puella, Chondrothyretes cerina puella (Torre & Bartsch, 1938)
cerina roseoapicata, Chondrothyretes cerina roseoapicata (Torre & Bartsch, 1938)
cerina subcerina, Chondrothyretes cerina subcerina (Torre & Bartsch, 1938)
cerroensis, Hendersonina hamlini cerroensis Torre & Bartsch
charmettense, Hispanipoma quaternatum charmettense Bartsch
chavani, Tropidophora chavani Fischer-Piette, 1949
chenui, Tropidophora tricarinata chenui Fischer-Piette
chevalieri, Colobostylus chevalieri (Adams, 1851)
chevalieri album, Pomatias chevalieri album Adams, 1851 - syn of: Colobostylus chevalieri (Adams, 1851)
chevalieri virgatum, Pomatias chevalieri virgatum Adams, 1851 - syn of: Colobostylus chevalieri (Adams, 1851)
chiapasense, Choanopoma chiapasense (Crosse & Fischer, 1877)
chiapensis, Choanopoma chiapensis Crosse & Fischer, 1877 - syn of: Choanopoma chiapasense (Crosse & Fischer, 1877)
chittyi, Annularia chittyi (Adams, 1849)
chordatum, Chondropoma chordatum (Gundlach in Pfeiffer, 1858)
chordatum baracoensis, Chondropoma chordatum baracoensis (Torre & Bartsch, 1941)
chordatum guantanamensis, Chondropoma chordatum guantanamensis (Torre & Bartsch, 1941)
chordatum mayariensis, Chondropoma chordatum mayariensis (Torre & Bartsch, 1941)
chordatum songoensis, Chondropoma chordatum songoensis (Torre & Bartsch, 1941)
chordatum tanamensis, Chondropoma chordatum tanamensis (Torre & Bartsch, 1941)
chorrerensis, Annularops sauvallei chorrerensis Torre & Bartsch
chorrillensis, Aguayotudora cristata chorrillensis Torre & Bartsch
chorrillensis, Bermudezia eurystoma chorrillensis Torre & Bartsch
chromium, Tropidophora chromium (Morelet, 1877)
cincinna, Tropidophora cincinna (Sowerby, 1843)
cincinnatiensis, Cyclostoma cincinnatiensis Lea, 1840 - syn of: Pomatiopsis cincinnatiensis (Lea, 1840)
cingulatum, Chondropometes torrei cingulatum Torre & Bartsch
cirrata, Hendersonina cirrata (Wright, 1867)
cisnerosi, Chondrothyrella assimilis cisnerosi Torre & Bartsch
citrina, Tropidophora tricarinata citrina Sowerby
clappi, Chondropometes vignalense clappi Torre & Bartsch
clathratula, Otopoma clathratula (Récluz, 1843)
clathratula, Georgia clathratula Bourguignat, 1882
clathratula socotrana, Otopoma clathratula socotrana Godwin-Austen, 1881
clathratum, Rhytidopoma clathratum (Gould, 1842)
clathratum artemisensis, Rhytidopoma clathratum artemisensis Torre & Bartsch, 1941
clathratum candelaense, Rhytidopoma clathratum candelaense Torre & Bartsch, 1941
clathratum jumaguaense, Rhytidopoma clathratum jumaguaense (Torre & Bartsch, 1941)
clathratum jumaquense, Rhytidopoma clathratum jumaquense Torre & Bartsch, 1941 - syn of: Rhytidopoma clathratum jumaguaense (Torre & Bartsch, 1941)
claudens, Opisthosiphon claudens Torre & Bartsch, 1941
claudicans, Chondrothyrella claudicans (Poey, 1851)
claudicans culminis, Chondrothyrella claudicans culminis Torre & Bartsch, 1938
clausa, Ligatella clausa (Sowerby, 1843)
clenchi, Kisslingia clenchi (Pilsbry)
clenchi, Chondropoma ernesti clenchi Aguayo
clenchi, Wrightudora clenchi Aguayo & Jaume, 1954
clerchi, Chondrothyrium violaceum clerchi Torre & Bartsch
cleti, Chondropoma cleti Aguayo, 1939
clivicola, Chondrothyretes shuttleworthi clivicola Torre & Bartsch
cognatum, Chondropoma cognatum Torre & Bartsch, 1938
colmenaris, Diplopoma torrei colmenaris Sánchez Roig
colombense, Chondropoma vespertinum colombense Torre & Bartsch
colombense, Rhytidopoma pinense colombense Torre & Bartsch
coloni, Opisthosiphon coloni Bartsch, 1946
columbense, Opisthosiphon moreletianum columbense Torre & Bartsch
columellare, Chondropometes torrei columellare Torre & Bartsch
columna, Parachondria columna (Wood, 1828)
comburens, Tropidophora comburens (Melvill & Ponsonby, 1903)
cometense, Chondropoma biforme cometense Bartsch
cometense, Chondropoma cometense Bartsch, 1946 - syn of: Chondropoma biforme cometense Bartsch, 1946
compacta, Leonia mammillaris compacta Pallary
complanata, Eutudorops complanata (Torre & Bartsch, 1941)
complanatum, Otopoma complanatum Godwin-Austen, 1881 - syn of: Otopoma albicans (Gray & Sowerby, 1839)
concentricum, Pomatias concentricum Adams, 1849 - syn of: Adamsiella variabilis (Adams, 1849)
conceptum, Weinlandipoma gonavense conceptum Bartsch
concinnum, Cyclostoma concinnum Scacchi, 1836 - syn of: Truncatella subcylindrica (Linnaeus, 1767)
concolor, Chondropometes concolor Torre & Bartsch, 1938
concolor carnicolor, Chondropometes concolor carnicolor Torre & Bartsch, 1938
concolor fontei, Chondropometes concolor fontei Torre & Bartsch, 1938
concolor magister, Chondropometes concolor magister Torre & Bartsch, 1938
concolor spe, Chondropometes concolor spe Torre & Bartsch, 1938
confertum, Chondropoma confertum (Poey, 1852)
confertum perplexum, Chondropoma confertum perplexum Torre & Bartsch, 1938
conicum, Dioscopoma conicum (Godwin-Austen, 1881)
conicum reticulatum, Dioscopoma conicum reticulatum Neubert, 2009
conicus, Pomatias conicus (Klein, 1853) † (FOSSIL)
conicus, Opisthosiphon conicus Aguayo & Sánchez Roig, 1949
conicus bielanensis, Pomatias conicus bielanensis (Lomnicki, 1902) † (FOSSIL)
conoidea, Cyclotopsis conoidea (Pfeiffer, 1847)
consanguinea, Tropidophora tricarinata consanguinea Sowerby
consobrinus, Pomatias consobrinus (Sandberger, 1872) † (FOSSIL)
consocia, Tropidophora consocia (Pfeiffer, 1848)
consomile, Georgia dhofarense consomile Melvill & Ponsonby
contectum, Cyclostoma contectum Millet, 1813 - syn of: Viviparus contectus Millet, 1813
copanense, Cyclostoma copanense Sowerby, 1850 - syn of: Tomocyclus simulacrum (Morelet, 1849)
coquandiana, Tropidophora coquandiana (Petit De La Saussaye, 1852)
cordovanum, Gouldipoma cordovanum Pfeiffer, 1856 - syn of: Chondropomium rubicundum (Morelet, 1849)
coronadoi, Annularops coronadoi (Arango in Poey, 1867)
coronadoi acervata, Annularops coronadoi acervata (Arango, 1881)
coronadoi spurca, Annularops coronadoi spurca (Aguayo, 1934)
coronatum, Rhytidopoma coronatum (Poey in Pfeiffer, 1856)
coroni, Chondropomorus coroni Bartsch, 1946
corrientesense, Chondropoma carenasense corrientesense Torre & Bartsch
corrugatum, Cyclostoma corrugatum Sowerby, 1843 - syn of: Cyclopilsbrya caribaea (Clench & Aguayo, 1935)
corsicana, Pomatias corsicana Kobelt, 1903 - syn of: Pomatias elegans (Müller, 1774)
cortinal, Annularops sauvallei cortinal Torre & Bartsch
costanerensis, Chondrothyretes reticulata costanerensis Torre & Bartsch
costulatum, Cyclostoma costulatum Rossmässler, 1837 - syn of: Pomatias rivulare (Eichwald, 1829)
costulatum hyrcanum, Cyclostoma costulatum hyrcanum Von Martens, 1874 - syn of: Pomatias hyrcanum (Von Martens, 1874)
cottonense, Chondropoma biforme cottonense Bartsch
cozumelense, Choanopoma cozumelense Richards, 1937 - syn of: Choanopomops andrewsae (Ancey, 1886)
crassa, Chondrothyra crassa Torre & Bartsch, 1938
crassilabris, Annularita majuscula crassilabris Torre & Bartsch
crassiuscula, Wrightudora crassiuscula (Torre & Bartsch, 1941)
crataegus, Abbottella crataegus Watters, 2016
crenimargo, Chondrothyrium crenimargo (Pfeiffer, 1858)
crenimargo fuentesi, Chondrothyrium crenimargo fuentesi Alcalde, 1943
crenulatum, Chondropoma crenulatum (Potiez & Michaud, 1832)
crenulatum, Pomatias crenulatum Sowerby - syn of: Parachondria adamsi (Pfeiffer)
crenulatum martinensis, Chondropoma crenulatum martinensis Coomans, 1967
crenulosa, Parachondria crenulosa (Adams, 1849)
cristata, Aguayotudora cristata (Torre & Bartsch, 1941)
cristata chorrillensis, Aguayotudora cristata chorrillensis (Torre & Bartsch, 1941)
crossei, Abbottella crossei (Pilsbry, 1933)
cucullatum, Opisthosiphon cucullatum Torre & Bartsch, 1941
culminis, Chondrothyrella claudicans culminis Torre & Bartsch
cumbrense, Chondropometes scopulorum cumbrense Torre & Bartsch
cumbrensis, Choanopoma blaini cumbrensis Torre & Bartsch
cumbrensis, Chondrothyretes shuttleworthi cumbrensis Torre & Bartsch
cumbrensis, Chondrothyra cumbrensis Torre & Bartsch, 1938
cumbrensis catharina, Chondrothyra cumbrensis catharina Torre & Bartsch, 1938
cumulata, Annularisca cumulata (Pfeiffer, 1863)
cunaguae, Opisthosiphon cunaguae Welch, 1929
curvilabre, Opisthocoelicum excurrens curvilabre Aguayo & Jaume
cuveriana, Tropidophora cuveriana Petit De La Saussaye, 1841 - syn of: Tropidophora cuvieriana (Petit De La Saussaye, 1841)
cuvieriana, Tropidophora cuvieriana (Petit De La Saussaye, 1841)
cuzcoensis, Chondrothyrella cuzcoensis Torre & Bartsch, 1938
cuzcoensis caroli, Chondrothyrella cuzcoensis caroli Torre & Bartsch, 1938
cuzcoensis carolis, Chondrothyrella cuzcoensis carolis Torre & Bartsch, 1938
cygni, Annularella cygni (Pilsbry, 1930)
daedala, Parachondria daedala Watters, 2016
daedala, Chondropomorus daedala Watters, 2016 - syn of: Parachondria daedala Watters, 2016
dalli, Dallsiphona dalli (Torre & Henderson, 1920)
darolinensis, Ligatella darolinensis Kobelt, 1910 - syn of: Otopoma perrieri Bourguignat, 1881
daudinoti, Chondropoma daudinoti (Gundlach in Pfeiffer, 1860)
deburghiae, Tropidophora deburghiae (Reeve, 1861)
deceptor, Turrithyra deceptor (Arango, 1882)
deceptor persimilis, Turrithyra deceptor persimilis (Torre & Bartsch, 1938)
deceptor scalaris, Turrithyra deceptor scalaris (Torre & Bartsch, 1938)
deceptor vicentensis, Turrithyra deceptor vicentensis (Torre & Bartsch, 1938)
decolor, Hendersonina discolorans decolor Torre & Bartsch
decolorata, Gundlachtudora decolorata (Gundlach in Pfeiffer, 1859)
decurrens, Chondropoma moestum decurrens Poey
decussata, Licina decussata (Lamarck, 1822)
decussata yaucoi, Licina decussata yaucoi Baker, 1962
decussatulum, Pomatias decussatulum Adams, 1849 - syn of: Adamsiella mirabilis (Wood, 1828)
deficiens, Torrella deficiens (Gundlach in Pfeiffer, 1857)
deflorata, Tropidophora deflorata (Morelet, 1876)
degeneratum, Opisthosiphon evanidum degeneratum Torre & Henderson
delatreanum, Chondropoma delatreanum (D'Orbigny, 1841)
delatreanum bonacheum, Chondropoma delatreanum bonacheum Torre & Bartsch, 1938
delatreanum santafeum, Chondropoma delatreanum santafeum Torre & Bartsch, 1938
delatriana, Annularia delatriana D'Orbigny, 1841 - syn of: Chondropoma delatreanum (D'Orbigny, 1841)
delicatulum, Xenopomoides delicatulum Torre & Bartsch, 1941
delicatum, Cyclostoma delicatum Philippi, 1848 - syn of: Torellia delicata (Philippi, 1844)
deliciosa, Tropidophora deliciosa Férussac, 1850
delmaresi, Ligatella delmaresi Bourguignat, 1887
denisi, Ligatella denisi Fischer-Piette, 1949
denselirata, Tropidophora denselirata Fischer-Piette, Blanc & Salvat, 1969
dentatum, Chondropoma dentatum (Say, 1825)
dentilobatum, Hispanipoma quaternatum dentilobatum Weinland
depressa, Cinnabarica depressa Neubert, 2009
desciscens, Cyclostoma desciscens Pfeiffer, 1951 - syn of: Lithidion souleyetianum (Petit De La Saussaye, 1850)
desculpta, Tudora megacheilus desculpta Baker
deshayesiana, Tropidophora deshayesiana (Petit De La Saussaye, 1841)
desmazuresi, Tropidophora desmazuresi Crosse, 1873
detectabilis, Chondrothyra detectabilis (Torre & Bartsch, 1938)
detectabilis almiqui, Chondrothyra detectabilis almiqui Sánchez Roig, 1951
detectabilis amabilis, Chondrothyra detectabilis amabilis (Torre & Bartsch, 1938)
detectabilis bellamaria, Chondrothyra detectabilis bellamaria (Torre & Bartsch, 1938)
detectabilis palmaris, Chondrothyra detectabilis palmaris (Torre & Bartsch, 1938)
detectum, Opisthosiphon detectum Torre & Henderson, 1920
detectum lucasense, Opisthosiphon detectum lucasense Torre & Bartsch, 1941
detectum murinum, Opisthosiphon detectum murinum Torre & Bartsch, 1941
detectum scopulorum, Opisthosiphon detectum scopulorum Torre & Bartsch, 1941
deviata, Chondrothyretes gundlachi deviata Torre & Bartsch
deviatum, Opisthosiphon deviatum Torre & Bartsch, 1941
dhofarense, Georgia dhofarense (Melvill & Ponsonby, 1896)
dhofarense consomile, Georgia dhofarense consomile (Melvill & Ponsonby, 1896)
diadema, Abbottella diadema Watters, 2013
diaphanus, Weinlandipoma diaphanus (Bartsch)
diatretum, Cyclostoma diatretum Gould, 1847 - syn of: Fijiopoma diatreta (Gould, 1847)
dichroa, Abbottella dichroa Watters, 2013
diegoensis, Tropidophora diegoensis Fischer-Piette, 1949
dilatatum, Chondropoma dilatatum (Gundlach in Pfeiffer, 1859)
dilatatum bayatense, Chondropoma dilatatum bayatense Torre & Bartsch, 1938
dilatatum garridoi, Chondropoma dilatatum garridoi Jaume, 1984
dilatatum pilotense, Chondropoma dilatatum pilotense Torre & Bartsch, 1938
dilatatum subdilatatum, Chondropoma dilatatum subdilatatum Torre & Bartsch, 1938
dilatum, Chondropoma dilatum Gundlach, 1859 - syn of: Chondropoma dilatatum (Gundlach in Pfeiffer, 1859)
dingeoni, Tropidophora dingeoni Fischer-Piette, Blanc & Salvat, 1969
discolorans, Chondrothyra discolorans (Pfeiffer, 1863)
discolorans, Hendersonina discolorans (Wright, 1863)
discolorans bicolor, Hendersonina discolorans bicolor Torre & Bartsch, 1938
discolorans decolor, Hendersonina discolorans decolor Torre & Bartsch, 1938
disjunctum, Chondropometes sagebieni disjunctum Torre & Bartsch
dislocatus, Annularia dislocatus Gray, 1850 - syn of: Parachondria sheppardiana (Adams, 1850)
distincta, Eutudora transitoria distincta Torre & Bartsch
djerimensis, Tudora fossor djerimensis Baker
djerimensis, Tudora djerimensis Baker, 1924 - syn of: Tudora fossor djerimensis (Baker, 1924)
docens, Annularia fimbriatula docens Sowerby
dolium, Cyclostoma dolium Thomä, 1845 † - syn of: Ventriculus pupa (Braun, 1838) † (FOSSIL)
doloresi, Chondrothyrium violaceum doloresi Torre & Bartsch
domingense, Kisslingia vermiculata domingense Bartsch
domingoense, Abbottella domingoense Bartsch, 1946 - syn of: Kisslingia vermiculata domingense Bartsch, 1946
dominguezi, Hendersonina canaliculata dominguezi Aguayo & Jaume
dominguezi, Wrightudora gundlachi dominguezi Aguayo & Jaume
dominicense, Chondropoma dominicense (Pfeiffer, 1852)
dubia, Cyclotopsis dubia Morelet, 1881
dubium, Cyclostoma dubium Pfeiffer, 1846 - syn of: Omphalotropis dubia (Pfeiffer, 1846)
dubium, Opisthocoelicum dubium Sánchez Roig, 1949
dunkeri, Chondropoma unilabiatum dunkeri Arango
dupontianum, Tropidophora filostriata dupontianum Morelet
dyganum, Pomatias dyganum Mabille, 1886
dysoni, Cyclostoma dysoni Pfeiffer, 1851 - syn of: Neocyclotus dysoni (Pfeiffer, 1851)
eburnea, Annularisca eburnea (Gundlach in Pfeiffer, 1858)
echinatum, Opisthosiphon echinatum (Gundlach in Pfeiffer, 1857)
echinella, Hendersonina echinulata echinella Torre & Bartsch
echinulata, Hendersonina echinulata (Wright, 1863)
echinulata echinella, Hendersonina echinulata echinella (Torre & Bartsch, 1938)
echinulatum, Chondropoma echinulatum Wright, 1863 - syn of: Hendersonina echinulata (Wright, 1863)
echinus, Blaesospira echinus (Pfeiffer, 1864)
echinus infernalis, Blaesospira echinus infernalis (Torre & Bartsch, 1941)
echinus lucifer, Blaesospira echinus lucifer (Torre & Bartsch, 1941)
edouardi, Chondropoma edouardi Aguayo, 1934
edouardi asperulum, Chondropoma edouardi asperulum Aguayo, 1934
eduardoi, Chondropoma eduardoi Aguayo, 1934 - syn of: Chondropoma edouardi Aguayo, 1934
egregia, Chondrothyretes egregia (Pfeiffer, 1856)
egregia rutila, Chondrothyretes egregia rutila Bartsch & Torre, 1938
elegans, Pomatias elegans (Müller, 1774)
elegans, Chondropomella elegans Watters & Duffy, 2010
eleutheraensis, Opisthosiphon eleutheraensis Bartsch, 1946
elisabethae, Chondropometes magnum elisabethae Torre & Bartsch
elizabethae, Chondrothyrella petricosa elizabethae Torre & Bartsch
emilianum, Rhytidopoma emilianum (Weinland, 1862)
emilianum gibbosum, Rhytidopoma emilianum gibbosum Bartsch, 1946
emmae, Torrella emmae Jaume & Sánchez De Fuentes, 1943
encinarensis, Chondrothyretes reticulata encinarensis Torre & Bartsch
enoda, Wrightudora enoda Gundlach, 1860 - syn of: Wrightudora enode (Gundlach in Pfeiffer, 1860)
enode, Wrightudora enode (Gundlach in Pfeiffer, 1860)
enode brevilabris, Wrightudora enode brevilabris Aguayo, 1943
enriquillense, Chondropoma enriquillense Pilsbry, 1933
eocenica, Procyclotopsis eocenica M. Harzhauser & Neubauer, 2015 † (FOSSIL)
erectum, Chondropoma erectum (Gundlach in Pfeiffer, 1858)
erectum ramonensis, Chondropoma erectum ramonensis (Torre & Bartsch, 1941)
erectum schwartii, Chondropoma erectum schwartii Jaume, 1984
erectum turquinensis, Chondropoma erectum turquinensis Torre & Bartsch, 1941
ergastulum, Rhytidopoma pinense ergastulum Torre & Bartsch
ernesti, Chondropoma ernesti Pfeiffer, 1862
ernesti clenchi, Chondropoma ernesti clenchi Aguayo, 1932
ernesti hortensiae, Chondropoma ernesti hortensiae Aguayo, 1943
ernesti quignonesi, Chondropoma ernesti quignonesi Aguayo, 1943
ernesti quinonesi, Chondropoma ernesti quinonesi Aguayo, 1943 - syn of: Chondropoma ernesti quignonesi Aguayo, 1943
ernesti santaluciense, Chondropoma ernesti santaluciense Torre & Bartsch, 1938
ernesti unguiculatum, Chondropoma ernesti unguiculatum Aguayo, 1943
escalerense, Opisthosiphon paredonense escalerense Torre & Bartsch
escalerense, Opisthosiphon apertum escalerense Torre & Henderson
euchila, Tropidophora tricarinata euchila Pfeiffer
eugeniae, Tropidophora eugeniae Reeve, 1857
euglypta, Bermudezia euglypta (Torre & Bartsch, 1941)
euglypta, Annularia euglypta Torre, 1941
euglyta, Annularia euglyta Torre, 1941 - syn of: Annularia euglypta Torre, 1941
eurystoma, Bermudezia eurystoma (Torre & Bartsch, 1941)
eurystoma chorrillensis, Bermudezia eurystoma chorrillensis (Torre & Bartsch, 1941)
eusarcum, Chondropomium eusarcum (Pfeiffer, 1852)
eusarcum catalinitense, Chondropomium eusarcum catalinitense Bartsch, 1946
eusarcum puertoplatense, Chondropomium eusarcum puertoplatense Bartsch, 1946
eusarcum saonaense, Chondropomium eusarcum saonaense Bartsch, 1946
eustola, Tropidophora eustola (Crosse & Fischer, 1887)
eutyches, Chondropoma eutyches Pilsbry, 1933
evanidum, Opisthosiphon evanidum Torre & Henderson, 1921
evanidum degeneratum, Opisthosiphon evanidum degeneratum Torre & Henderson, 1921
excellens, Cinnabarica excellens Neubert, 2009
excelsa, Annularita majuscula excelsa Torre & Bartsch
excisa, Chondrothyrella excisa (Gundlach in Pfeiffer, 1863)
excurrens, Opisthocoelicum excurrens (Gundlach in Pfeiffer, 1860)
excurrens curvilabre, Opisthocoelicum excurrens curvilabre Aguayo & Jaume, 1954
exigua, Cyclostoma exigua Hombron & Jacquinot, 1848 - syn of: Omphalotropis exigua (Hombron & Jacquinot, 1848)
eximium, Chondropometes eximium Torre & Bartsch, 1938
eximium angusticulum, Chondropometes eximium angusticulum (Torre & Bartsch, 1938)
eximium malleatum, Chondropometes eximium malleatum (Torre & Bartsch, 1938)
eximium notatum, Chondropometes eximium notatum Torre & Bartsch, 1938
expansa, Annularia uncinata expansa Torre & Bartsch
exquisitum, Chondropometes exquisitum Torre & Bartsch, 1938
exquisitum cereum, Chondropometes exquisitum cereum Torre & Bartsch, 1938
exquisitum notatum, Chondropometes exquisitum notatum Torre & Bartsch, 1938
exquisitum punctolineatum, Chondropometes exquisitum punctolineatum Torre & Bartsch, 1938
exumaensis, Opisthosiphon bahamiense exumaensis Bartsch
eyerdami, Eyerdamia eyerdami Bartsch, 1946
falconi, Chondropoma obesum falconi Aguayo & Jaume
fallax, Chondropoma candeanum fallax Torre & Bartsch
fascia, Parachondria fascia (Wood, 1828)
fascia augustae, Parachondria fascia augustae (Henderson, 1901)
fascia proxima, Parachondria fascia proxima (Adams, 1849)
fascia testudinea, Parachondria fascia testudinea (Adams, 1851)
fauxcapense, Rhytidopoma rollei fauxcapense Bartsch
fecunda, Parachondria fecunda (Adams, 1849)
fecundum distinctum, Pomatias fecundum distinctum Adams, 1849 - syn of: Parachondria fecunda (Adams, 1849)
felicis, Tropidophora felicis Fischer-Piette & Bedoucha, 1965
felipense, Chondropometes segregatum felipense Torre & Bartsch
feringalavaensis, Ligatella feringalavaensis Fischer-Piette, Blanc, Blanc & Salvat, 1993
ferruginea, Tudorella ferruginea Lamarck
figuroense, Chondropoma irradians figuroense Torre & Bartsch
filopura, Tropidophora filopura Fischer-Piette, 1949
filostriata, Tropidophora filostriata (Sowerby, 1873)
filostriata dupontianum, Tropidophora filostriata dupontianum (Morelet, 1876)
fimbriata, Tropidophora fimbriata (Lamarck, 1822)
fimbriata, Annularia fimbriata Schumacher, 1817 - syn of: Annularia lincina (Linnaeus, 1758)
fimbriatula, Annularia fimbriatula Bourguignat, 1880
fimbriatula albinodata, Annularia fimbriatula albinodata (Adams, 1851)
fimbriatula docens, Annularia fimbriatula docens (Sowerby, 1825)
finitimum, Weinlandipoma gonavense finitimum Bartsch
fivanonensis, Tropidophora fivanonensis Fischer-Piette & Bedoucha, 1965
flammilabre, Chondropometes torrei flammilabre Torre & Bartsch
flavidum, Diplopoma torrei flavidum Torre & Bartsch
flavum, Cyclostoma flavum Broderip, 1832 - syn of: Cyclomorpha flava (Broderip, 1832)
fluxum, Chondropoma fluxum Bartsch, 1946
fogonense, Chondropometes vignalense fogonense Torre & Bartsch
fomentense, Chondrothyrium violaceum fomentense Torre & Bartsch
fontei, Annularops sauvallei fontei Sánchez Roig
fontei, Chondropometes concolor fontei Torre & Bartsch
forbesianum, Lithidion forbesianum Smith, 1899
formosa, Tropidophora formosa Sowerby, 1849
fossor, Tudora fossor Baker, 1924
fossor arubana, Tudora fossor arubana Baker, 1924
fossor canashitensis, Tudora fossor canashitensis (Baker, 1924)
fossor djerimensis, Tudora fossor djerimensis (Baker, 1924)
fossor wespuntensis, Tudora fossor wespuntensis Baker, 1924
fossularis, Chondrothyretes parilis fossularis Torre & Bartsch
foveata, Chondrothyra foveata (Gundlach in Pfeiffer, 1863)
foveata toroensis, Chondrothyra foveata toroensis Torre & Bartsch, 1938
foveolata, Tropidophora foveolata (Melvill & Ponsonby, 1895)
fragilis, Annularisca fragilis (Gundlach in Pfeiffer, 1859)
fragilis juliani, Annularisca fragilis juliani Torre & Bartsch, 1941
fratercula, Chondrothyretes reticulata fratercula Torre & Bartsch
fraterminor, Parachondria avena fraterminor Pilsbry & Brown
freirei, Troschelvindex freirei Aguayo & Jaume, 1947
fuentesi, Chondrothyrium crenimargo fuentesi Alcalde
fuentesi, Chondropoma fuentesi Jaume & Alcalde, 1944
fulvescens, Tropidophora fulvescens (Sowerby, 1843)
fumata, Chondrothyretes incrassata fumata Torre & Bartsch
fuscolineatum, Pomatias fuscolineatum Adams, 1845 - syn of: Colobostylus bronnii (Adams, 1845)
fuscula, Tropidophora fuscula (Pfeiffer, 1851)
fuscula sambiranoensis, Tropidophora fuscula sambiranoensis Fischer-Piette, 1949
fuscus, Colobostylus albus fuscus Adams
gabbi, Abbottella gabbi (Crosse, 1873)
gabbi pilsbryi, Abbottella gabbi pilsbryi Bartsch, 1946
gabriella, Abbottella moreletiana gabriella Bartsch
gaigei, Choanopoma gaigei Bequaert & Clench, 1931
galalonensis, Hendersonina scobina galalonensis Torre & Bartsch
galaxius, Leiabbottella galaxius Watters, 2010
galerensis, Chondrothyretes reticulata galerensis Torre & Bartsch
gallorum, Tropidophora gallorum Fischer-Piette, Blanc & Salvat, 1969
gambelense, Chondropoma biforme gambelense Bartsch
ganuzaense, Chondropoma pfeifferianum ganuzaense Torre & Bartsch
garceanum, Chondropoma garceanum Torre, 1913 - syn of: Chondropoma garcianum Torre, 1913
garciai, Opisthosiphon bacillum garciai Torre & Bartsch
garciana, Limadora garciana (Aguayo, 1932)
garciana auriculata, Limadora garciana auriculata Aguayo, 1944
garciana quignonesi, Limadora garciana quignonesi Aguayo, 1943
garciana quinonesi, Limadora garciana quinonesi Aguayo, 1943 - syn of: Limadora garciana quignonesi Aguayo, 1943
garciana sillaensis, Limadora garciana sillaensis (Torre & Bartsch, 1941)
garcianoi, Eutudora limbifera garcianoi Jaume & Sánchez De Fuentes
garcianum, Chondropoma garcianum Torre, 1913
gardineri, Tropidophora gardineri Gerlach, 2006
garridoi, Chondropoma dilatatum garridoi Jaume
garridoiana, Wrightudora garridoiana (Gundlach in Pfeiffer, 1860)
garridoiana baracoensis, Wrightudora garridoiana baracoensis (Torre & Bartsch, 1941)
gassiesi, Cyclostoma gassiesi Souverbie, 0 - syn of: Ostodes plicatus (Gould, 1847)
gemma, Chondrothyrella assimilis gemma Torre & Bartsch
gerhardfellneri, Rhytidopoma gerhardfellneri Watters & Frank-Fellner, 2017
gibarana, Wrightudora gibarana Aguayo, 1943
gibbosum, Rhytidopoma emilianum gibbosum Bartsch
gibbosum, Opisthocoelicum paradoxum gibbosum Torre & Bartsch
gibbum, Cyclostoma gibbum Draparnaud, 1805 - syn of: Belgrandia gibba (Draparnaud, 1805)
gigantea, Chondrothyretes impressa gigantea Torre & Bartsch
giganteum, Lithidion giganteum Neubert, 2002
giganteum, Cyclostoma giganteum Pfeiffer, 1848 - syn of: Incidostoma confusum (Sykes, 1894)
giganteum, Cyclostoma giganteum Reeve, 1842 - syn of: Incidostoma giganteum (Reeve, 1842)
gimbiense, Chondropomium gimbiense Bartsch, 1946
gimbiense saltrouense, Chondropomium gimbiense saltrouense Bartsch, 1946
glabratum, Chondropoma glabratum Reeve, 1863
glabratum acklinense, Chondropoma glabratum acklinense Bartsch, 1946 - syn of: Chondropoma glabratum acklinsense Bartsch, 1946
glabratum acklinsense, Chondropoma glabratum acklinsense Bartsch, 1946
glaucus, Pomatias glaucus (Sowerby, 1843)
glazeki, Procyclotopsis glazeki (Stworzewicz, 1995) † (FOSSIL)
gnote, Chondropoma gnote Pilsbry, 1935
gnote kriegeri, Chondropoma gnote kriegeri Bartsch, 1946
goanni, Chondropoma lindenianum goanni Bartsch
godwini, Rochebrunia godwini Kobelt, 1914 - syn of: Tropidophora balfouri (Godwin-Austen, 1881)
gonavense, Weinlandipoma gonavense (Weinland, 1862)
gonavense arcahaiense, Weinlandipoma gonavense arcahaiense Bartsch, 1946
gonavense conceptum, Weinlandipoma gonavense conceptum Bartsch, 1946
gonavense finitimum, Weinlandipoma gonavense finitimum Bartsch, 1946
gonavense robustum, Weinlandipoma gonavense robustum Bartsch, 1946
gonzalesi, Chondrothyrium violaceum gonzalesi Torre & Bartsch
goudotiana, Tropidophora goudotiana (Sowerby, 1843)
gouldianum, Chondropoma pictum gouldianum Torre & Bartsch
gracillima, Christophipoma bertini gracillima Maltzan
gramainosa, Licina gramainosa Baker, 0 - syn of: Licina graminosa Baker, 1941
graminosa, Licina graminosa Baker, 1941
grandidieri, Otopoma grandidieri Crosse & Fischer, 1868
grandiensis, Tudora muskusi grandiensis Baker
graniferum, Chondropoma graniferum Bartsch, 1946
graniferum saxicolum, Chondropoma graniferum saxicolum Bartsch, 1946
granosa, Adamsiella variabilis granosa Adams
granosa, Annularia granosa Adams, 1850 - syn of: Adamsiella variabilis granosa (Adams, 1850)
granosum aberrans, Pomatias granosum aberrans Adams, 1851 - syn of: Adamsiella variabilis granosa (Adams, 1850)
grata, Guillainia grata (Petit De La Saussaye, 1850)
grataloupi, Cyclostoma grataloupi Pfeiffer, 1853 - syn of: Choanopoma largillierti (Pfeiffer, 1842)
grateloupi, Choanopomops grateloupi Pfeiffer, 1853 - syn of: Choanopoma largillierti (Pfeiffer, 1842)
gratiosa, Cubadamsiella gratiosa (Torre & Bartsch, 1941)
gratiosum, Chondropometes torrei gratiosum Torre & Bartsch
grayana, Adamsiella grayana (Pfeiffer, 1846)
grayana, Pomatias grayana Adams, 1847 - syn of: Adamsiella grayana (Pfeiffer, 1846)
grayana aureolabre, Adamsiella grayana aureolabre Simpson, 1894 - syn of: Adamsiella grayana (Pfeiffer, 1846)
grayana aureolabris, Adamsiella grayana aureolabris Simpson, 1894 - syn of: Adamsiella grayana (Pfeiffer, 1846)
grayana pallida, Adamsiella grayana pallida Gloyne, 1875 - syn of: Adamsiella grayana (Pfeiffer, 1846)
greenfieldi, Chondropoma greenfieldi Torre & Bartsch, 1938
greenfieldi, Opisthosiphon greenfieldi Torre & Bartsch, 1941
griffithiana, Parachondria griffithiana (Adams, 1850)
grillensis, Torrella immersa grillensis Torre & Bartsch
gruneri, Chondropomium gruneri (Pfeiffer, 1846)
guaicanamarensis, Wrightudora aguayoi guaicanamarensis Torre & Bartsch
guajabanense, Opisthosiphon subobtectum guajabanense Torre & Bartsch
guamensis, Chondrothyretes impressa guamensis Torre & Bartsch
guanajaense, Opisthosiphon guanajaense Torre & Bartsch, 1941
guanensis, Chondrothyretes gundlachi guanensis Torre & Bartsch
guantanamense, Chondropoma marginalbum guantanamense Torre & Bartsch
guantanamensis, Chondropoma chordatum guantanamensis Torre & Bartsch
guatemalensis, Cyclostoma guatemalensis Pfeiffer, 1851 - syn of: Tomocyclus guatemalensis (Pfeiffer, 1851)
guauraboense, Chondropoma carenasense guauraboense Torre & Bartsch
guayosense, Opisthosiphon obtectum guayosense Torre & Bartsch
guillaini, Ligatella guillaini (Petit De La Saussaye, 1850)
guillainopsis, Georgia guillainopsis (Bourguignat, 1882)
guillainopsis, Rochebrunia guillainopsis Petit De La Saussaye, 1850 - syn of: Ligatella guillaini (Petit De La Saussaye, 1850)
guirensis, Chondrothyrella assimilis guirensis Torre & Bartsch
guisaense, Chondropoma guisaense Torre & Bartsch, 1938
guisgense, Chondropoma guisgense Torre & Bartsch, 1938 - syn of: Chondropoma guisaense Torre & Bartsch, 1938
guitarti, Annularia perezi guitarti Torre & Bartsch
gundlachi, Chondrothyretes gundlachi (Arango & Molina, 1862)
gundlachi, Wrightudora gundlachi (Torre & Bartsch, 1941)
gundlachi deviata, Chondrothyretes gundlachi deviata (Torre & Bartsch, 1938)
gundlachi dominguezi, Wrightudora gundlachi dominguezi Aguayo & Jaume, 1954
gundlachi guanensis, Chondrothyretes gundlachi guanensis (Torre & Bartsch, 1938)
gundlachi muraliensis, Chondrothyretes gundlachi muraliensis Torre & Bartsch, 1938 - syn of: Chondrothyretes gundlachi murallensis Torre & Bartsch, 1938
gundlachi murallensis, Chondrothyretes gundlachi murallensis Torre & Bartsch, 1938
gundlachi porticola, Chondrothyretes gundlachi porticola (Torre & Bartsch, 1938)
gutierrezi, Chondropoma gutierrezi (Gundlach in Pfeiffer, 1856)
gutierrezi negrosense, Chondropoma gutierrezi negrosense Torre & Bartsch, 1938
haasi, Chondropoma pfeifferianum haasi Aguayo & Jaume
habichi, Tudora habichi (Weinland)
haemastoma, Cyclotopsis haemastoma Kira, 1955
haemastoma rodriguezensis, Cyclotopsis haemastoma rodriguezensis Crosse, 1873
haitensis, Rolleia haitensis Bartsch, 1946
hamlini, Hendersonina hamlini (Arango, 1882)
hamlini, Chondropoma hamlini Arango, 1882 - syn of: Hendersonina hamlini (Arango, 1882)
hamlini cerroensis, Hendersonina hamlini cerroensis (Torre & Bartsch, 1938)
hamlini xilaensis, Hendersonina hamlini xilaensis (Torre & Bartsch, 1938)
harmeri, Pomatias harmeri Kennard † (FOSSIL)
hatoensis, Tudora rupis hatoensis Hummelinck
heatheraikenae, Parachondria heatheraikenae Watters, 2016
helicoides, Otopoma helicoides Neubert, 2009
hendersoni, Hendersonina hendersoni (Torre, 1909)
hendersoni, Xenopoma hendersoni Torre & Bartsch, 1941
hendersoni, Annularisca hendersoni Torre & Bartsch, 1941
henryi, Colonella watlingensis henryi Bartsch
hershei, Chondropoma obesum hershei Torre & Bartsch
hesperia, Chondrothyra tosta hesperia Torre & Bartsch
hespericum, Cyclostoma hespericum Morelet & Drouët, 1857 - syn of: Craspedopoma hespericum Morelet & Drouët, 1857
hespericum, Rhytidopoma hespericum Torre & Bartsch, 1941
heynemanni, Annularisca heynemanni (Pfeiffer, 1864)
hilliana, Annularia hilliana (Adams, 1845)
hilliana aculeosa, Annularia hilliana aculeosa (Adams, 1849)
hilliana amanda, Annularia hilliana amanda (Adams, 1849)
hillianum leporilabre, Pomatias hillianum leporilabre Adams, 1851 - syn of: Annularia hilliana aculeosa (Adams, 1849)
hinchensis, Kisslingia hinchensis Bartsch, 1946
hinduorum, Ligatella hinduorum (Blanford, 1864)
hispaniolae, Chondropoma petitianum hispaniolae Bartsch
histrio, Pomatias histrio Pfeiffer, 1853 - syn of: Tudora jayana (Adams, 1849)
hjalmarsoni, Chondropoma hjalmarsoni Pfeiffer, 1858
holguinense, Chondropoma holguinense (Aguayo, 1944)
holguinensis, Annularisca holguinensis Torre & Bartsch, 1941
holguinensis alcaldei, Annularisca holguinensis alcaldei Aguayo & Sánchez Roig, 1949
honestum, Rhytidopoma honestum (Poey, 1851)
honestum barroi, Rhytidopoma honestum barroi Aguayo & Jaume, 1945
honestum itinerans, Rhytidopoma honestum itinerans Torre & Bartsch, 1941
honestum nodiferum, Rhytidopoma honestum nodiferum (Arango, 1881)
hooksi, Chondropomium hooksi Watters & Duffy, 2010
hortensiae, Chondropoma ernesti hortensiae Aguayo
hortensiae, Blaesospira hortensiae Jaume, 1984 - syn of: Blaesospira rocai Torre & Bartsch, 1941
huettneri, Pomatias huettneri Wagner, 1897 - syn of: Eupomatias henricae huettneri (Wagner, 1897)
humberti, Tropidophora humberti Fischer-Piette, 1945
humboldtianum, Xenopoma humboldtianum (Pfeiffer, 1867)
humbug, Tropidophora humbug Griffiths & Herbert, 2013
humphreyanum, Cyclostoma humphreyanum Pfeiffer, 1846 - syn of: Colobostylus humphreysiana (Pfeiffer, 1846)
humphreysiana, Colobostylus humphreysiana (Pfeiffer, 1846)
hutia, Turrithyra sinuosa hutia Torre & Bartsch
hyacinthinus, Colobostylus banksianus hyacinthinus Adams
hyacinthum, Pomatias hyacinthum Adams, 1849 - syn of: Colobostylus banksianus (Sowerby, 1843)
hyans, Chondrothyretes impressa hyans Torre & Bartsch
hydii, Colonella hydii (Weinland)
hyrcanum, Pomatias hyrcanum (Von Martens, 1874)
hystrix, Xenopoma hystrix (Wright in Pfeiffer, 1862)
hystrix, Choanopoma hystrix Wright, 1862 - syn of: Xenopoma hystrix (Wright in Pfeiffer, 1862)
ibarrae, Chondrothyra uniplicata ibarrae Jaume
ignea, Chondropoma ignea (Reeve, 1838)
ignicolor, Chondropometes vignalense ignicolor Torre & Bartsch
ignilabre albilabre, Pomatias ignilabre albilabre Adams, 1851 - syn of: Adamsiella ignilabris (Adams, 1849)
ignilabris, Adamsiella ignilabris (Adams, 1849)
ignotum, Chondrothyrium violaceum ignotum Torre & Bartsch
illustris, Troschelvindex illustris Poey
immersa, Torrella immersa (Gundlach in Pfeiffer, 1857)
immersa camaronensis, Torrella immersa camaronensis Torre & Bartsch, 1941
immersa grillensis, Torrella immersa grillensis Torre & Bartsch, 1941
immersa persea, Torrella immersa persea Aguayo & Jaume, 1954
impresa, Chondrothyretes impressa impresa Torre & Bartsch
impressa, Chondrothyretes impressa Torre & Bartsch, 1938
impressa albostoma, Chondrothyretes impressa albostoma (Torre & Bartsch, 1938)
impressa gigantea, Chondrothyretes impressa gigantea (Torre & Bartsch, 1938)
impressa guamensis, Chondrothyretes impressa guamensis (Torre & Bartsch, 1938)
impressa hyans, Chondrothyretes impressa hyans (Torre & Bartsch, 1938)
impressa impresa, Chondrothyretes impressa impresa (Torre & Bartsch, 1938)
impressa ornata, Chondrothyretes impressa ornata (Torre & Bartsch, 1938)
impressa peregrina, Chondrothyretes impressa peregrina (Torre & Bartsch, 1938)
impressa rosariensis, Chondrothyretes impressa rosariensis (Torre & Bartsch, 1938)
impressa solada, Chondrothyretes impressa solada (Torre & Bartsch, 1938)
inaequalis, Pomatias inaequalis Wollaston, 1878 - syn of: Pomatias raricosta (Wollaston, 1878)
inaequilabrum, Chondropoma inaequilabrum Bartsch, 1946 - syn of: Chondropoma swifti inequilabrum Bartsch, 1946
incerta, Annularisca incerta Torre & Bartsch, 1941
incisa, Cyclostoma incisa Hombron & Jacquinot - syn of: Paramiella incisa (Hombron & Jacquinot)
incrassata, Chondrothyretes incrassata (Pfeiffer, 1862)
incrassata aurantiaca, Chondrothyretes incrassata aurantiaca (Torre & Bartsch, 1938)
incrassata fumata, Chondrothyretes incrassata fumata (Torre & Bartsch, 1938)
incrassata subincrassata, Chondrothyretes incrassata subincrassata (Torre & Bartsch, 1938)
incrassatum, Chondrothyretes shuttleworthi incrassatum Wright
inculta, Troschelvindex inculta (Poey, 1851)
indicum, Pomatias indicum Deshayes, 1832
indioensis, Annularia terneroensis indioensis Torre & Bartsch
indivisa, Annularia indivisa (Welch, 1929)
inequilabrum, Chondropoma swifti inequilabrum Bartsch
inequilabrum, Chondropoma inequilabrum Bartsch, 1946 - syn of: Chondropoma swifti inequilabrum Bartsch, 1946
infernale, Chondropometes vignalense infernale Torre & Bartsch
infernalis, Chondrothyretes shuttleworthi infernalis Sánchez Roig
infernalis, Blaesospira echinus infernalis Torre & Bartsch
inquisita, Annularia inquisita (Pilsbry, 1929)
insolutus, Opisthosiphon sainzi insolutus Clench & Aguayo
insulaefelis, Opisthosiphon bahamiense insulaefelis Clench
insulaefelis, Opisthosiphon insulaefelis Clench, 1938 - syn of: Opisthosiphon bahamiense insulaefelis Clench, 1938
insulanum, Opisthosiphon insulanum Torre & Bartsch, 1941
insulanum scopulorum, Opisthosiphon insulanum scopulorum Torre & Bartsch, 1941
insularis, Ligatella insularis (Pfeiffer, 1851)
insularis, Juannularia arguta insularis Torre & Bartsch
insularum, Opisthosiphon insularum Torre & Bartsch, 1941 - syn of: Opisthosiphon insulanum Torre & Bartsch, 1941
intercisa, Annularisca intercisa Torre & Bartsch, 1941
intermedium, Cyclostoma intermedium Adams, 1849 - syn of: Adamsiella monstrosa (Adams, 1849)
interruptus, Colobostylus interruptus (Lamarck, 1822)
interstitialis, Annularisca interstitialis (Gundlach in Pfeiffer, 1859)
iosaturatum, Chondropometes torrei iosaturatum Torre & Bartsch
irradians, Chondropoma irradians (Shuttleworth in Pfeiffer, 1852)
irradians camaronense, Chondropoma irradians camaronense Torre & Bartsch, 1938
irradians candicans, Chondropoma irradians candicans Torre & Bartsch, 1938
irradians figuroense, Chondropoma irradians figuroense Torre & Bartsch, 1938
irradians palenquense, Chondropoma irradians palenquense Torre & Bartsch, 1938
irradians panense, Chondropoma irradians panense Torre & Bartsch, 1938
irrorata, Adamsiella irrorata Gloyne, 1875
isabelae, Chondropoma solidulum isabelae Aguayo
isabelae, Rhytidopoma isabelae Aguayo & Jaume, 1953
isabellina, Parachondria isabellina Watters, 2016
isabellina, Chondropomorus isabellina Watters, 2016 - syn of: Parachondria isabellina Watters, 2016
itinerans, Rhytidopoma honestum itinerans Torre & Bartsch
itineraria, Chondrothyretes barbouri itineraria Torre & Bartsch
ivogoensis, Tropidophora ivogoensis Fischer-Piette, Blanc & Vukadinovic, 1974
jacmelense, Rhytidopoma jacmelense Bartsch, 1946
jacmelense cayesense, Rhytidopoma jacmelense cayesense Bartsch, 1946
jacobsoni, Rhytidothyra jacobsoni (Alcalde, 1948)
jaguaense, Chondropometes torrei jaguaense Torre & Bartsch
jamaguensis, Annularia jamaguensis Torre
jamaicense, Pomatias jamaicense Sowerby, 1843 - syn of: Poteria lineata (Chitty, 1857)
jarucense, Chondropometes vignalense jarucense Torre & Bartsch
jarvisi, Adamsiella jarvisi Henderson, 1901
jaulense, Chondropoma jaulense Torre & Bartsch, 1938
jaumei, Chondrothyrium violaceum jaumei Alcalde
jausi, Chondropoma asperulum jausi Aguayo
jayana, Tudora jayana (Adams, 1849)
jayanum nigrilabre, Pomatias jayanum nigrilabre Adams, 1850 - syn of: Tudora jayana (Adams, 1849)
jayanum rufilabre, Pomatias jayanum rufilabre Adams, 1851 - syn of: Tudora jayana (Adams, 1849)
jeannereti, Subannularia jeannereti (Pfeiffer, 1861)
jibacoense, Chondropoma poeyanum jibacoense Torre & Bartsch
jiguanensis, Troschelvindex jiguanensis (Pfeiffer, 1861)
jiguanensis bairensis, Troschelvindex jiguanensis bairensis (Torre & Bartsch, 1941)
jiguanensis negrosensis, Troschelvindex jiguanensis negrosensis (Torre & Bartsch, 1941)
jimenoi, Eutudora jimenoi (Arango in Pfeiffer, 1864)
johnsoni, Chondropoma nicolasi johnsoni Torre & Bartsch
jolyi, Leonia jolyi (Pallary, 1908)
jolyi boiteli, Leonia jolyi boiteli (Pallary, 1927)
josephinae, Cyclotopsis josephinae (Emberton, 2003)
jousseaumia, Tropidophora tricarinata jousseaumia Mabille
jousseaumianum, Pomatias jousseaumianum Mabille, 1886
joyeuse, Parachondria joyeuse Watters, 2016
judasense, Opisthosiphon judasense Torre & Henderson, 1920
juliana, Tropidophora juliana Fischer-Piette & Bedoucha, 1965
juliani, Annularisca fragilis juliani Torre & Bartsch
julieni, Chondropoma julieni Pfeiffer, 1866
jumaguaense, Rhytidopoma clathratum jumaguaense Torre & Bartsch
kabrietensis, Tudora megacheilus kabrietensis Baker
kianjavatoi, Tropidophora tricarinata kianjavatoi P. Fischer
kobelti, Pomatias kobelti Westerlund, 1890 - syn of: Pomatias elegans (Müller, 1774)
kriegeri, Chondropoma gnote kriegeri Bartsch
kriegeri, Abbottella moreletiana kriegeri Bartsch
kuehschelmi, Palaeocyclotus kuehschelmi Harzhauser & Neubauer, 2016 † (FOSSIL)
kugleri, Tudora williamsoni kugleri Forcart
kusteri, Chondropomium kusteri (Pfeiffer, 1851)
labeo, Licina labeo (Müller, 1774)
lacheri, Subannularia lacheri (Pfeiffer, 1861)
lactea, Chondrothyra tosta lactea Torre & Bartsch
laetum, Chondropoma laetum (Gutiérrez in Poey, 1858)
laetum appendiculatum, Chondropoma laetum appendiculatum Torre & Bartsch, 1938
laetum breviauris, Chondropoma laetum breviauris Aguayo, 1953
laetum subappendiculatum, Chondropoma laetum subappendiculatum Torre & Bartsch, 1938
laevigata, Pomatias laevigata (Webb & Berthelot, 1833)
laevigatus, Procyclotopsis laevigatus (Sandberger, 1870) † (FOSSIL)
laevior, Subannularia storchi laevior Aguayo
laevistria, Wrightudora laevistria Aguayo & Sánchez Roig, 1949
lagopoma, Lagopoma lagopoma Bartsch, 1946
lagunitasense, Chondropometes segregatum lagunitasense Torre & Bartsch
lamellata, Cubadamsiella lamellata Alcalde, 1945
lamellicostatum, Opisthocoelicum lamellicostatum (Torre & Henderson, 1921)
lamellicostatum mabuyense, Opisthocoelicum lamellicostatum mabuyense Torre & Bartsch, 1941
lamellosum, Opisthosiphon lamellosum Torre & Bartsch, 1941
lamellosum lowei, Opisthosiphon lamellosum lowei Torre & Bartsch, 1941
lanzarotensis, Pomatias lanzarotensis (Wollaston, 1878)
lapidaria, Cyclostoma lapidaria Say, 1817 - syn of: Pomatiopsis lapidaria (Say, 1817)
largillierti, Choanopoma largillierti (Pfeiffer, 1842)
lartetii, Cyclostoma lartetii Noulet, 1851 † (FOSSIL)
latilabre, Chondropometes latilabre (D'Orbigny, 1842)
latistoma, Eutudora limbifera latistoma Torre & Bartsch
latum, Chondropoma latum (Gundlach in Pfeiffer, 1858)
latum pujalsi, Chondropoma latum pujalsi Aguayo & Jaume, 1957
laureani, Chondropometes segregatum laureani Torre & Bartsch
laureani, Eutudorops undosa laureani Torre & Bartsch
lederi, Pomatias lederi Böttger, 1881 - syn of: Striolata lederi (Böttger, 1881)
lemani, Cyclostoma lemani Basterot, 1825 † - syn of: Schuettemmericia lemani (Basterot, 1825) † (FOSSIL)
lembeyi, Chondropoma lembeyi Torre & Bartsch, 1938
leoni, Cubadamsiella leoni (Torre & Bartsch, 1941)
leoni, Chondropoma leoni Torre & Bartsch, 1938
leteranense, Chondrothyrium violaceum leteranense Torre & Bartsch
libanoensis, Diplopoma architectonica libanoensis Torre & Bartsch
lienardi, Tropidophora lienardi (Morelet, 1877)
ligata, Tropidophora ligata (Müller, 1774)
ligatula, Tropidophora ligatula (Grateloup, 1840)
lima, Annularia lima (Adams, 1843)
lima, Pomatias lima Pfeiffer, 1846 - syn of: Annularia lima (Adams, 1843)
lima blandiana, Annularia lima blandiana (Adams, 1849)
limbifera, Eutudora limbifera (Menke in Pfeiffer, 1846)
limbifera britoi, Eutudora limbifera britoi Jaume & Sánchez De Fuentes, 1943
limbifera garcianoi, Eutudora limbifera garcianoi Jaume & Sánchez De Fuentes, 1943
limbifera latistoma, Eutudora limbifera latistoma (Torre & Bartsch, 1941)
limbifera saguaensis, Eutudora limbifera saguaensis Aguayo & Jaume, 1954
limbifera ternata, Eutudora limbifera ternata (Reeve, 1863)
limonensis, Limadorex limonensis (Torre & Bartsch, 1941)
lincina, Annularia lincina (Linnaeus, 1758)
lincinella, Pomatias lincinella Lamarck, 1822 - syn of: Annularia lincina (Linnaeus, 1758)
lincolni, Tropidophora lincolni Emberton, 2009
lindenianum, Chondropoma lindenianum Weinland, 1880
lindenianum goanni, Chondropoma lindenianum goanni Bartsch, 1946
lindenianum manni, Chondropoma lindenianum manni (Clench & Aguayo)
lineata, Tropidophora lineata Pfeiffer
lirata, Bermudezia lirata (Torre & Bartsch, 1941)
lirata parva, Bermudezia lirata parva (Torre & Bartsch, 1941)
lithidion, Lithidion lithidion (Sowerby, 1843)
litorale, Opisthosiphon litorale Torre & Bartsch, 1941
litteratum, Chondropoma litteratum Pfeiffer, 1852
litturatum, Chondropoma litturatum Pfeiffer, 1852 - syn of: Chondropoma litteratum Pfeiffer, 1852
longicollis, Adamsiella longicollis Pfeiffer, 1855
lowei, Opisthosiphon lamellosum lowei Torre & Bartsch
luacesi, Wrightudora aguayoi luacesi Sánchez Roig
lubricum, Cyclostoma lubricum Held, 1847 - syn of: Platyla polita (Hartmann, 1840)
lucasense, Opisthosiphon detectum lucasense Torre & Bartsch
lucifer, Blaesospira echinus lucifer Torre & Bartsch
lucifer, Chondropometes vignalense lucifer Torre & Bartsch
lucreciae, Chondropoma solidulum lucreciae Aguayo
luctifera, Chondrothyra atristoma luctifera Torre & Bartsch
luteilabre, Chondropometes torrei luteilabre Torre & Bartsch
lutetianus, Pomatias lutetianus Bourguignat, 1869 - syn of: Pomatias elegans (Müller, 1774)
mabuyense, Opisthocoelicum lamellicostatum mabuyense Torre & Bartsch
macarae, Tropidophora macarae Petit De La Saussaye, 1853
macaraea, Tropidophora semidecussata macaraea Petit De La Saussaye
macareae, Tropidophora macareae (Petit De La Saussaye, 1853)
maceoi, Chondrothyrella assimilis maceoi Torre & Bartsch
macgillivrayi, Cyclostoma macgillivrayi Pfeiffer - syn of: Gonatorhaphe fornicata macgillivrayi Pfeiffer
mackinlayi, Annularisca mackinlayi (Gundlach in Pfeiffer, 1859)
mactra, Annularita majuscula mactra Poey
maculata, Tudora maculata Baker, 1924
maculata, Hendersonina maculata Torre & Bartsch, 1938
madagascarensis, Tropidophora madagascarensis Gray, 1834 - syn of: Tropidophora tricarinata madagascariensis (Gray, 1834)
madagascariensis, Tropidophora tricarinata madagascariensis Gray
madagascariensis, Tropidophora madagascariensis Gray, 1834 - syn of: Tropidophora tricarinata madagascariensis (Gray, 1834)
magister, Chondropometes concolor magister Torre & Bartsch
magistra, Troschelvindex arangiana magistra Torre & Bartsch
magnificum, Chondropoma magnificum (Pfeiffer, 1852)
magnitesta, Colobostylus redfieldianus magnitesta Baker
magnum, Opisthocoelicum paradoxum magnum Torre & Bartsch
magnum, Chondropometes magnum Torre & Bartsch, 1938
magnum elisabethae, Chondropometes magnum elisabethae Torre & Bartsch, 1938
magnum signae, Chondropometes magnum signae Torre & Bartsch, 1938
maguasense, Chondrothyrium violaceum maguasense Torre & Bartsch
mahaderensis, Tropidophora tricarinata mahaderensis Fischer-Piette, Cauquoin & Testud
mahogani, Chondropoma pictum mahogani Gould
maignei, Tropidophora maignei Fischer-Piette, Blanc, Blanc & Salvat, 1994
maisianum, Chondropoma unilabiatum maisianum Aguayo
majungana, Ligatella cavernarum majungana Fischer-Piette, Blanc, Blanc & Salvat
majuscula, Annularita majuscula (Morelet, 1851)
majuscula catalinensis, Annularita majuscula catalinensis (Torre & Bartsch, 1941)
majuscula crassilabris, Annularita majuscula crassilabris (Torre & Bartsch, 1941)
majuscula cumbrensis, Annularita majuscula cumbrensis Torre & Bartsch, 1938 - syn of: Annularita majuscula milerai Jaume, 1984
majuscula excelsa, Annularita majuscula excelsa (Torre & Bartsch, 1941)
majuscula mactra, Annularita majuscula mactra (Poey, 1852)
majuscula milerai, Annularita majuscula milerai Jaume, 1984
majuscula narcisi, Annularita majuscula narcisi (Torre & Bartsch, 1941)
malleatum, Chondropometes eximium malleatum Torre & Bartsch
mameyensis, Chondrothyretes shuttleworthi mameyensis Torre & Bartsch
mameyi, Chondropometes segregatum mameyi Torre & Bartsch
mamillaris, Leonia mamillaris (Lamarck, 1822) - syn of: Leonia mammillaris (Lamarck, 1822)
mammillaris, Leonia mammillaris (Lamarck, 1822)
mammillaris compacta, Leonia mammillaris compacta (Pallary, 1927)
mammillaris turricula, Leonia mammillaris turricula (Pallary, 1920)
manatiense, Chondrothyrium violaceum manatiense Torre & Bartsch
manatiense, Opisthosiphon manatiense Torre & Bartsch, 1941
manielensis, Chondropoma manielensis (Bartsch, 1946)
manni, Chondropoma lindenianum manni Clench & Aguayo
margarita, Cyclostoma margarita Pfeiffer, 1853 - syn of: Omphalotropis margarita (Pfeiffer, 1851)
marginalbum, Chondropoma marginalbum (Gundlach in Pfeiffer, 1859)
marginalbum guantanamense, Chondropoma marginalbum guantanamense Torre & Bartsch, 1938
marginalbum subguantanamense, Chondropoma marginalbum subguantanamense Torre & Bartsch, 1938
marginata, Cyclostoma marginata Say, 1821 - syn of: Pupoides albilabris (Adams, 1841)
mariguanicolum, Chondropoma mariguanicolum Bartsch, 1946
mariguanicolum stolidum, Chondropoma mariguanicolum stolidum Bartsch, 1946
maritima, Parachondria maritima (Adams, 1846)
maritima aurora, Parachondria maritima aurora (Adams, 1846)
marmoreum, Chondropoma marmoreum Watters & Duffy, 2010
marojeziana, Ligatella marojeziana Fischer-Piette, Blanc, Blanc & Salvat, 1993
martensi, Rolleia martensi Maltzan
martensianum, Choanopoma martensianum (Pilsbry, 1900)
martiensis, Wrightudora recta martiensis Torre & Bartsch
martillense, Chondropometes vignalense martillense Torre & Bartsch
martillensis, Chondrothyretes cerina martillensis Sánchez Roig
martinensis, Chondropoma crenulatum martinensis Coomans
martinii, Cyclostoma martinii Deshayes, 1864
mauretanica, Tudorella mauretanica (Pallary, 1899)
mauretanica, Tudorella sulcata mauretanica Lamarck
mayariense, Chondropoma virgineum mayariense Aguayo
mayariensis, Chondropoma chordatum mayariensis Torre & Bartsch
mayariensis, Ramsdenia nobilitata mayariensis Torre & Bartsch
mayariensis, Annularisca mayariensis Torre & Bartsch, 1941
mayariensis canapuensis, Annularisca mayariensis canapuensis Torre & Bartsch, 1941
mayariensis welchi, Annularisca mayariensis welchi Torre & Bartsch, 1941
mayense, Chondropoma auberianum mayense Torre & Bartsch
mayensis, Annularisca mayensis Torre & Bartsch, 1941
maynardi, Opisthosiphon maynardi Vanatta, 1920
mayori, Opisthosiphon mayori Bartsch, 1946
megacheilos, Tudora megacheilos (Potiez & Michaud, 1838) - syn of: Tudora megacheilus (Potiez & Michaud, 1838)
megacheilos rondelipensis, Tudora megacheilos rondelipensis Baker, 1924 - syn of: Tudora megacheilus rondeklipensis Baker, 1924
megacheilus, Tudora megacheilus (Potiez & Michaud, 1838)
megacheilus desculpta, Tudora megacheilus desculpta Baker, 1924
megacheilus kabrietensis, Tudora megacheilus kabrietensis Baker, 1924
megacheilus rondeklipensis, Tudora megacheilus rondeklipensis Baker, 1924
melanaxis, Chondropoma solidulum melanaxis Aguayo
melitense, Tudorella sulcata melitense Sowerby
mellosa, Abbottella mellosa Watters & Duffy, 2010
mendax, Hendersonina mendax (Torre & Bartsch, 1938)
mendozense, Chondropometes sagebieni mendozense Torre & Bartsch
mermosi, Cyclotopsis mermosi (Fischer-Piette, Blanc, Blanc & Salvat, 1993)
mexicanum, Cyclostoma mexicanum Menke, 1830 - syn of: Aperostoma mexicanum (Menke, 1830)
miaryi, Cyclotopsis miaryi (Fischer-Piette, Blanc, Blanc & Salvat, 1993)
michaudi, Tropidophora michaudi (Grateloup, 1840)
michrochasma, Tropidophora michrochasma (Pfeiffer, 1856) - syn of: Tropidophora microchasma (Pfeiffer, 1856)
microchasma, Tropidophora microchasma (Pfeiffer, 1856)
milagrosae, Ramsdenia notata milagrosae Aguayo
milerai, Annularita majuscula milerai Jaume
milleacantha, Abbottella milleacantha Watters & Duffy, 2010
milleri, Weinlandipoma milleri Bartsch, 1946
milloti, Cyclotopsis milloti Fischer-Piette, Blanc & Vukadinovic, 1974
milneedwardsi, Georgia milneedwardsi (Bourguignat, 1881)
mimetica, Chondropoma mimetica (Torre & Bartsch, 1941)
minaense, Chondropometes torrei minaense Torre & Bartsch
minaensis, Annularops attenuata minaensis Torre & Bartsch
minia, Troschelvindex minia (Gundlach in Poey, 1858)
minuta, Annularisca pseudalata minuta Sánchez Roig
mirabilis, Adamsiella mirabilis (Wood, 1828)
miranda, Adamsiella miranda (Adams, 1848)
mirandae, Dioscopoma mirandae (Neubert, 2002)
mirandensis, Ramsdenia nobilitata mirandensis Torre & Bartsch
mirifica, Ramsdenia nobilitata mirifica Preston
mitis, Annularia mitis Pfeiffer, 1854
moaense, Chondropoma rufopictum moaense Sánchez Roig
mochense, Chondropoma pictum mochense Torre & Bartsch
modestum, Platypoma modestum (Petit De La Saussaye, 1850)
modestum, Cyclostoma modestum Adams, 1849 - syn of: Parachondria wilkinsonii (Adams, 1849)
moestum, Chondropoma moestum Pfeiffer
moestum arieli, Chondropoma moestum arieli Aguayo & Jaume, 1952
moestum decurrens, Chondropoma moestum decurrens (Poey, 1858)
moestum moralesi, Chondropoma moestum moralesi (Torre & Bartsch, 1938)
moguntinus, Pomatias moguntinus Kadolsky, 1989 † (FOSSIL)
molense, Chondropoma molense Bartsch, 1946
monstrosa, Adamsiella monstrosa (Adams, 1849)
montalvensis, Chondrothyretes tenebrata montalvensis Torre & Bartsch
montalvensis, Chondrothyretes montalvensis Torre & Bartsch, 1938 - syn of: Chondrothyretes tenebrata montalvensis (Torre & Bartsch, 1938)
montana, Cyclotopsis montana (Pfeiffer, 1855)
montanei, Chondrothyrium violaceum montanei Torre & Bartsch
montanum, Chondropoma montanum Torre & Bartsch, 1938
monticolum, Hispanipoma quaternatum monticolum Bartsch
moralesi, Chondropoma moestum moralesi Torre & Bartsch
moralesi, Chondropoma moralesi Torre & Bartsch, 1938 - syn of: Chondropoma moestum moralesi (Torre & Bartsch, 1938)
mordax, Parachondria mordax (Adams, 1849)
moreletiana, Abbottella moreletiana (Crosse, 1873)
moreletiana gabriella, Abbottella moreletiana gabriella Bartsch, 1946
moreletiana kriegeri, Abbottella moreletiana kriegeri Bartsch, 1946
moreletiana wetmorei, Abbottella moreletiana wetmorei Bartsch, 1946
moreletianum, Opisthosiphon moreletianum (Petit De La Saussaye, 1842)
moreletianum columbense, Opisthosiphon moreletianum columbense Torre & Bartsch, 1941
morenoi, Annularia morenoi (Torre & Bartsch, 1941)
morenoi, Chondrothyrium violaceum morenoi Jaume & Sánchez De Fuentes
moribunda, Adamsiella moribunda (Adams, 1849)
morondavensis, Tropidophora morondavensis Fischer-Piette, 1949
morsei, Annularops attenuata morsei Torre & Bartsch
mortei, Chondrothyrium violaceum mortei Torre & Bartsch
mortiarum, Chondrothyrium mortiarum Sánchez Roig, 1951
mostarensis, Pomatias mostarensis Wagner, 1906 - syn of: Cochlostoma mostarense (Wagner, 1906)
moulinsii, Tropidophora moulinsii (Grateloup, 1832)
moussoniana, Annularia moussoniana Adams, 1851
muchai, Parachondria muchai Watters, 2016
multifasciata, Tropidophora tricarinata multifasciata Grateloup
multisulcata, Tudorella sulcata multisulcata Potiez & Michaud
multisulcatus, Pomatias multisulcatus Potiez & Michaud, 1838 - syn of: Tudorella sulcata (Draparnaud, 1805)
mumia, Dissostoma mumia (Lamarck, 1804) † (FOSSIL)
murallensis, Chondrothyretes gundlachi murallensis Torre & Bartsch
murinum, Opisthosiphon detectum murinum Torre & Bartsch
muskusi, Tudora muskusi Baker, 1924
muskusi bullenensis, Tudora muskusi bullenensis Baker, 1924
muskusi grandiensis, Tudora muskusi grandiensis Baker, 1924
mutatum, Pomatias mutatum Adams, 1851 - syn of: Adamsiella variabilis (Adams, 1849)
mutica, Parachondria mutica (Adams, 1849)
najazaensis, Bermudezia najazaensis (Torre & Bartsch, 1941)
najazaensis, Wrightudora aguayoi najazaensis Torre & Bartsch
najazaensis palomarensis, Bermudezia najazaensis palomarensis (Torre & Bartsch, 1941)
nana, Annularops semicana nana Torre & Bartsch
nana, Rhytidothyra bilabiata nana Torre & Bartsch
narcisi, Annularita majuscula narcisi Torre & Bartsch
nassauense, Chondropoma canescens nassauense Bartsch
natensoni, Ramsdenia natensoni (Torre & Bartsch, 1941)
natensoni, Chondrothyretes reticulata natensoni Sánchez Roig
natensoni, Annularops sauvallei natensoni Torre & Bartsch
natensoni, Chondrothyra natensoni Torre & Bartsch, 1938
natensoni canetensis, Ramsdenia natensoni canetensis (Torre & Bartsch, 1941)
naticoides, Otopoma naticoides (Récluz, 1843)
naticopsis, Georgia naticopsis (Bourguignat, 1882)
navassense, Chondropoma navassense Tryon, 1866
nebulosa, Chondrothyra rutila nebulosa Torre & Bartsch
necopium, Chondropoma necopium Bartsch, 1946 - syn of: Chondropoma hjalmarsoni Pfeiffer, 1858
neglectum, Chondropoma neglectum (Gundlach in Pfeiffer, 1856)
negrilensis, Colobostylus negrilensis (Adams, 1845)
negrosense, Chondropoma gutierrezi negrosense Torre & Bartsch
negrosensis, Troschelvindex jiguanensis negrosensis Torre & Bartsch
nelsoni, Colobostylus nelsoni Clapp, 1914
newcombi, Abbottella newcombi (Crosse, 1873)
newcombianum, Chondropoma newcombianum (Adams)
newportensis, Tudora rupis newportensis Baker
neyi, Chondropoma biforme neyi Bartsch
nicolasi, Chondropoma nicolasi Torre & Bartsch, 1938
nicolasi brittoni, Chondropoma nicolasi brittoni Torre & Bartsch, 1938
nicolasi johnsoni, Chondropoma nicolasi johnsoni Torre & Bartsch, 1938
nigriculum, Chondropoma nigriculum (Gundlach, 1860)
nipense, Chondropoma canescens nipense Torre & Bartsch
nipensis, Subannularia storchi nipensis Torre & Bartsch
nitens, Pomatias nitens Adams, 1849 - syn of: Parachondria fascia augustae (Henderson, 1901)
nitens, Abbottella nitens Watters, 2013
niveum, Lithidion niveum Petit De La Saussaye, 1850
nobilis, Clydonopoma nobilis (Pfeiffer, 1852)
nobilitata, Ramsdenia nobilitata (Gundlach in Poey, 1858)
nobilitata mayariensis, Ramsdenia nobilitata mayariensis (Torre & Bartsch, 1941)
nobilitata mirandensis, Ramsdenia nobilitata mirandensis (Torre & Bartsch, 1941)
nobilitata mirifica, Ramsdenia nobilitata mirifica (Preston, 1913)
nobilitata yaterasensis, Ramsdenia nobilitata yaterasensis (Torre & Bartsch, 1941)
nodiferum, Rhytidopoma honestum nodiferum Arango
nodulatum, Rhytidopoma nodulatum (Poey, 1851)
nodulatum anafense, Rhytidopoma nodulatum anafense Torre & Bartsch, 1941
nodulatum palenquense, Rhytidopoma nodulatum palenquense Torre & Bartsch, 1941
nodulosum, Pomatias nodulosum Adams, 1850 - syn of: Adamsiella variabilis granosa (Adams, 1850)
notata, Ramsdenia notata (Torre & Bartsch, 1941)
notata, Jaumeia notata Torre & Bartsch, 1941 - syn of: Ramsdenia notata (Torre & Bartsch, 1941)
notata milagrosae, Ramsdenia notata milagrosae Aguayo, 1943
notatum, Chondropometes exquisitum notatum Torre & Bartsch
notatum, Chondropometes eximium notatum Torre & Bartsch
nubilum, Kisslingia vermiculata nubilum Bartsch
nuttii, Colobostylus nuttii Pilsbry, 1903
nyassanum, Tropidophora nyassanum Smith
oberi, Rolleia oberi Watters & Duffy, 2010
obesa, Wrightudora obesa (Torre & Bartsch, 1941)
obesum, Chondropoma obesum (Menke, 1830)
obesum falconi, Chondropoma obesum falconi Aguayo & Jaume, 1952
obesum hershei, Chondropoma obesum hershei Torre & Bartsch, 1938
obesum palmasolense, Chondropoma obesum palmasolense Torre & Bartsch, 1938
obesum subobesum, Chondropoma obesum subobesum Torre & Bartsch, 1938
obligatum, Cyclostoma obligatum Gould, 1847 - syn of: Cyclomorpha obligata (Gould, 1847)
obliterata, Bermudezia obliterata (Torre & Bartsch, 1941)
obscurum, Pomatias obscurum Sowerby, 1843 - syn of: Adamsiella grayana (Pfeiffer, 1846)
obsoleta, Tropidophora obsoleta (Lamarck, 1822)
obsoleta, Annularia obsoleta (Torre & Bartsch, 1941)
obsoleta, Annularodes obsoleta Torre & Bartsch, 1941 - syn of: Annularia obsoleta (Torre & Bartsch, 1941)
obsoletum, Chondropoma unilabiatum obsoletum Torre & Bartsch
obtectum, Opisthosiphon obtectum Torre & Henderson, 1920
obtectum guayosense, Opisthosiphon obtectum guayosense Torre & Bartsch, 1941
obtectum seibaboense, Opisthosiphon obtectum seibaboense Torre & Bartsch, 1941
obtectum tenuicostum, Opisthosiphon obtectum tenuicostum Torre & Henderson, 1921
obturatum, Bermudezsiphona obturatum (Torre & Henderson, 1920)
obturatum sulcosum, Bermudezsiphona obturatum sulcosum Torre & Bartsch, 1941
obtusa, Ligatella obtusa (Pfeiffer, 1862)
obtusum, Pomatias obtusum Draparnaud, 1801 - syn of: Cincinna obtusa (Draparnaud, 1801)
occidentale, Chondropoma poeyanum occidentale Torre & Bartsch
occidentale, Rhytidopoma occidentale Torre & Bartsch, 1941
occidentalis, Opisthosiphon vaughani occidentalis Bartsch
occlusa, Tropidophora occlusa (Mörch, 1852)
occultum, Opisthocoelicum occultum (Torre & Henderson, 1921)
oculeum, Chondropoma oculeum Watters & Duffy, 2010
oicium, Turrithyra semicora oicium Torre & Bartsch
olivieri, Pomatias olivieri Charpentier
olssoni, Chondropoma olssoni Pilsbry, 1933
opisthocoele, Opisthocoelicum opisthocoele Torre & Bartsch, 1941
oppessulata, Tropidophora oppessulata Fischer-Piette, Blanc & Salvat, 1969
opposita, Turrithyra sinuosa opposita Torre & Bartsch
orchidae, Cyclotopsis orchidae (Emberton, 2003)
orcutti, Weinlandipoma orcutti (Bartsch, 1946)
organicola, Annularops semicana organicola Torre & Bartsch
ornata, Chondrothyretes impressa ornata Torre & Bartsch
ornatum, Dioscopoma ornatum (Godwin-Austen, 1881)
osberti, Choanopomops osberti (Tristram, 1861)
ottonis, Chondrothyrella ottonis (Pfeiffer, 1846)
ottonis, Rhytidopoma wrightianum ottonis Torre & Bartsch
ottonis riohondensis, Chondrothyrella ottonis riohondensis Torre & Bartsch, 1938
oxytremum, Chondropoma oxytremum (Gundlach in Pfeiffer, 1860)
pachya, Tudorella sulcata pachya Pallary
palenquense, Chondropoma irradians palenquense Torre & Bartsch
palenquense, Rhytidopoma nodulatum palenquense Torre & Bartsch
pallens, Annularisca pallens Torre & Bartsch, 1941
pallida, Tropidophora alluaudi pallida Dautzenberg
pallidulum, Diplopoma torrei pallidulum Torre & Bartsch
palmae, Chondropometes segregatum palmae Sánchez Roig
palmaris, Chondrothyra detectabilis palmaris Torre & Bartsch
palmaritense, Chondropometes vignalense palmaritense Torre & Bartsch
palmaritensis, Eutudorops troscheli palmaritensis Torre & Bartsch
palmasolense, Chondropoma obesum palmasolense Torre & Bartsch
palmensis, Pomatias palmensis (Wollaston, 1878)
palmeri, Opisthosiphon palmeri Torre & Bartsch, 1941
palmeri camajanense, Opisthosiphon palmeri camajanense Torre & Bartsch, 1941
palomarensis, Bermudezia najazaensis palomarensis Torre & Bartsch
panense, Chondropoma irradians panense Torre & Bartsch
panormitana, Tudorella sulcata panormitana Sacchi
panormitanum, Pomatias panormitanum Sacchi, 1954 - syn of: Tudorella sulcata panormitana Sacchi, 1954
papyracea, Parachondria papyracea (Adams, 1850)
papyraceum abbreviatum, Pomatias papyraceum abbreviatum Adams, 1851 - syn of: Parachondria papyracea (Adams, 1850)
paradoxa, Gundlachtudora paradoxa Watters, 2013
paradoxum, Opisthocoelicum paradoxum (Torre & Henderson, 1921)
paradoxum gibbosum, Opisthocoelicum paradoxum gibbosum Torre & Bartsch, 1941
paradoxum magnum, Opisthocoelicum paradoxum magnum Torre & Bartsch, 1941
paraguanensis, Tudora paraguanensis Hovestadt, 2016
paredonense, Opisthosiphon paredonense Torre & Henderson, 1920
paredonense escalerense, Opisthosiphon paredonense escalerense Torre & Bartsch, 1941
paredonense transitorium, Opisthosiphon paredonense transitorium Torre & Henderson, 1920
paredonis, Chondrothyrella paredonis Sánchez Roig, 1951
parilis, Chondrothyretes parilis Torre & Bartsch, 1938
parilis amoena, Chondrothyretes parilis amoena (Torre & Bartsch, 1938)
parilis fossularis, Chondrothyretes parilis fossularis (Torre & Bartsch, 1938)
parilis scalaris, Chondrothyretes parilis scalaris (Torre & Bartsch, 1938)
parilis simonis, Chondrothyretes parilis simonis (Torre & Bartsch, 1938)
parva, Bermudezia lirata parva Torre & Bartsch
parvicaymanense, Chondropoma caymanbracensis parvicaymanense Pilsbry
parvum, Chondropometes sagebieni parvum Torre & Bartsch
paterna, Chondrothyra subegregia paterna Torre & Bartsch
patricia, Chondrothyra subegregia patricia Torre & Bartsch
paulucciae, Tropidophora paulucciae (Crosse & Fischer, 1882)
pauluccioides, Tropidophora semidecussata pauluccioides Fischer-Piette, Blanc, Blanc & Salvat
pauperata, Parachondria pauperata (Adams, 1849)
payroli, Bermudezia payroli (Torre & Bartsch, 1941)
pearmanaeana, Adamsiella pearmanaeana Chitty, 1853
pearmaneana, Adamsiella pearmaneana Chitty, 1853 - syn of: Adamsiella pearmanaeana Chitty, 1853
peasei, Parachondria peasei Pilsbry, 1933
pellucida, Chondrothyretes reticulata pellucida Torre & Bartsch
peninsularis, Abbottella adolphi peninsularis Bartsch
penoensis, Licina aguadillensis penoensis Baker
percrassa, Chondrothyra percrassa (Wright in Pfeiffer, 1864)
peregrina, Chondrothyretes impressa peregrina Torre & Bartsch
perezi, Annularia perezi (Torre & Bartsch, 1941)
perezi guitarti, Annularia perezi guitarti (Torre & Bartsch, 1941)
perfecta, Tropidophora perfecta Fulton, 1903
perinetensis, Tropidophora perinetensis Fischer-Piette & Bedoucha, 1965
perlatum, Chondropoma perlatum (Gundlach in Poey, 1858)
perplexa, Annularops perplexa (Torre & Bartsch, 1941)
perplexa, Chondrothyretes shuttleworthi perplexa Torre & Bartsch
perplexa, Chondropoma canescens perplexa Torre & Bartsch
perplexum, Chondropoma confertum perplexum Torre & Bartsch
perplexum, Chondropometes scopulorum perplexum Torre & Bartsch
perplicata, Juannularia arguta perplicata Gundlach
perplicata, Juannularia perplicata Gundlach, 1857 - syn of: Juannularia arguta perplicata (Gundlach, 1857)
perrieri, Otopoma perrieri Bourguignat, 1881
persea, Torrella immersa persea Aguayo & Jaume
persimilis, Turrithyra deceptor persimilis Torre & Bartsch
perspectiva, Ramsdenia perspectiva (Gundlach in Pfeiffer, 1859)
pertosta, Chondrothyra tosta pertosta Torre & Bartsch
perturbata, Chondrothyrella perturbata Torre & Bartsch, 1938
petiti, Tropidophora petiti Fischer-Piette, 1949
petitianum, Chondropoma petitianum Pfeiffer, 1850
petitianum hispaniolae, Chondropoma petitianum hispaniolae Bartsch, 1946
petrei, Guajaibona petrei (D'Orbigny, 1842)
petri, Opisthosiphon quinti petri Aguayo & Jaume
petricola, Chondrothyretes reticulata petricola Torre & Bartsch
petricolella, Chondrothyretes reticulata petricolella Torre & Bartsch
petricosa, Chondrothyrella petricosa (Morelet, 1851)
petricosa anafensis, Chondrothyrella petricosa anafensis Torre & Bartsch, 1938
petricosa elizabethae, Chondrothyrella petricosa elizabethae Torre & Bartsch, 1938
pfeifferi, Chondropoma pfeifferi Aguayo, 1945
pfeifferianum, Chondropoma pfeifferianum (Poey, 1851)
pfeifferianum camoense, Chondropoma pfeifferianum camoense Torre & Bartsch, 1938
pfeifferianum ganuzaense, Chondropoma pfeifferianum ganuzaense Torre & Bartsch, 1938
pfeifferianum haasi, Chondropoma pfeifferianum haasi Aguayo & Jaume, 1953
philippiana, Tropidophora philippiana Pfeiffer, 1851
piade, Chondropometes vignalense piade Torre & Bartsch
pictum, Chondropoma pictum (Pfeiffer, 1839)
pictum, Pomatias pictum Sowerby, 1843 - syn of: Colobostylus humphreysiana (Pfeiffer, 1846)
pictum anafense, Chondropoma pictum anafense Torre & Bartsch, 1938
pictum arangoi, Chondropoma pictum arangoi Torre & Bartsch, 1938
pictum celsum, Chondropoma pictum celsum Torre & Bartsch, 1938
pictum gouldianum, Chondropoma pictum gouldianum Torre & Bartsch, 1938
pictum magahoni, Chondropoma pictum magahoni Gould, 1842 - syn of: Chondropoma pictum mahogani (Gould, 1842)
pictum mahogani, Chondropoma pictum mahogani (Gould, 1842)
pictum mochense, Chondropoma pictum mochense Torre & Bartsch, 1938
pictum sagra, Chondropoma pictum sagra (D'Orbigny, 1842)
pictum varaderense, Chondropoma pictum varaderense Torre & Bartsch, 1938
pictum yumuriense, Chondropoma pictum yumuriense Torre & Bartsch, 1938
pilotense, Chondropoma dilatatum pilotense Torre & Bartsch
pilsbryi, Annularia pilsbryi (Welch, 1929)
pilsbryi, Abbottella gabbi pilsbryi Bartsch
pinalillensis, Hendersonina canaliculata pinalillensis Torre & Bartsch
pinense, Rhytidopoma pinense Torre & Bartsch, 1941
pinense colombense, Rhytidopoma pinense colombense Torre & Bartsch, 1941
pinense ergastulum, Rhytidopoma pinense ergastulum Torre & Bartsch, 1941
pinense rosarioense, Rhytidopoma pinense rosarioense Torre & Bartsch, 1941
piniana, Pomatias piniana Pollonera, 1885 - syn of: Pomatias elegans (Müller, 1774)
pipianensis, Eutudora catenata pipianensis Aguayo & Jaume
pisum, Annularia pisum (Adams, 1849)
planaense, Chondropoma biforme planaense Bartsch
plateroense, Bermudezsiphona plateroense Torre & Bartsch, 1941
platychilum, Chondropoma platychilum (Pfeiffer)
pleurophorum, Cistulops pleurophorum (Pfeiffer, 1852)
plicatulum, Chondropoma plicatulum (Pfeiffer, 1839)
plicatulum, Gouldipoma plicatulum Pfeiffer, 1839 - syn of: Chondropoma plicatulum (Pfeiffer, 1839)
plicatum, Cyclostoma plicatum Gould, 1847 - syn of: Ostodes plicatus (Gould, 1847)
plicatum, Opisthosiphon plicatum Torre & Bartsch, 1941
plicatum aguayoi, Opisthosiphon plicatum aguayoi Sánchez Roig, 1949
plurilirata, Ligatella plurilirata Fulton, 1903
poenitentis, Chondropometes vignalense poenitentis Torre & Bartsch
poeyana, Cyclostoma poeyana D'Orbigny, 1842 - syn of: Chondropoma poeyanum (D'Orbigny, 1842)
poeyanum, Chondropoma poeyanum (D'Orbigny, 1842)
poeyanum jibacoense, Chondropoma poeyanum jibacoense Torre & Bartsch, 1938
poeyanum occidentale, Chondropoma poeyanum occidentale Torre & Bartsch, 1938
poeyanum ricardi, Chondropoma poeyanum ricardi Torre, 1954
poeyi, Opisthosiphon poeyi Torre & Bartsch, 1941
poirieri, Georgia poirieri (Bourguignat, 1882)
polita, Chondrothyretes cerina polita Torre & Bartsch
politum, Dioscopoma politum Neubert, 2009
pollex, Cyclostoma pollex Gould, 1856 - syn of: Pollicaria gravida (Benson, 1856)
poloensis, Kisslingia poloensis Bartsch, 1946
polyzonatum, Tropidophora polyzonatum (Morelet, 1885)
ponderosum, Cyclostoma ponderosum Pfeiffer, 1851 - syn of: Amphicyclotus ponderosus (Pfeiffer, 1851)
portalesense, Chondropometes sagebieni portalesense Torre & Bartsch
portica, Chondrothyretes shuttleworthi portica Torre & Bartsch
porticola, Chondrothyretes gundlachi porticola Torre & Bartsch
portillensis, Chondropoma textum portillensis Torre & Bartsch
portuandoi, Chondropoma portuandoi Torre & Bartsch, 1938
praecursor, Omanitopsis praecursor (Neubert & Van Damme, 2012) † (FOSSIL)
praecursor, Pomatias praecursor Böttger, 1908 - syn of: Pomatias raricosta (Wollaston, 1878)
praecursor, Cyclotopsis praecursor Neubert & Van Damme, 2012 † - syn of: Omanitopsis praecursor (Neubert & Van Damme, 2012) † (FOSSIL)
presasianum, Chondropoma presasianum Gundlach, 1863
presasianum canasiense, Chondropoma presasianum canasiense Torre & Bartsch, 1938
prestoni, Annularisca prestoni (Ramsden, 1914)
pretei, Blaesospira pretei (D'Orbigny, 1843)
pretrei, Blaesospira pretrei D'Orbigny, 1843 - syn of: Blaesospira pretei (D'Orbigny, 1843)
princeps, Chondropoma princeps Thompson
principalis, Tropidophora principalis (Pfeiffer, 1859)
procax, Cubadamsiella procax (Poey, 1851)
prominula, Cyclostoma prominula D'Orbigny, 1852 - syn of: Neocyclotus prominulus (D'Orbigny, 1852)
prominulum, Opisthosiphon prominulum Torre & Bartsch, 1941
propeconsocia, Tropidophora propeconsocia Fischer-Piette & Bedoucha, 1965
propevitellina, Tropidophora propevitellina Fischer-Piette, Blanc, Blanc & Salvat, 1993
protactum, Opisthosiphon protactum Torre & Henderson, 1920 - syn of: Opisthosiphon protractum Torre & Henderson, 1920
protractum, Opisthosiphon protractum Torre & Henderson, 1920
providencialense, Chondropoma providencialense Bartsch, 1946
providentialis, Opisthosiphon alleni providentialis Bartsch
proxima, Parachondria fascia proxima Adams
pseudalata, Annularisca pseudalata (Torre in Pilsbry & Henderson, 1912)
pseudalata minuta, Annularisca pseudalata minuta Sánchez Roig, 1951
pudica, Chondrothyrella pudica (D'Orbigny, 1842)
puella, Chondrothyretes cerina puella Torre & Bartsch
puerilis, Tropidophora puerilis Fischer-Piette & Bedoucha, 1965
puertecitense, Chondropometes vignalense puertecitense Torre & Bartsch
puertoplatense, Chondropomium eusarcum puertoplatense Bartsch
puertoplatensis, Weinlandipoma puertoplatensis (Pfeiffer)
pujalsi, Subannularia pujalsi (Aguayo, 1953)
pujalsi, Opisthosiphon quesadai pujalsi Aguayo
pujalsi, Chondropoma latum pujalsi Aguayo & Jaume
pulchella, Tropidophora pulchella (Sowerby, 1843)
pulchra, Annularia pulchra Vos, 2005
pulchrior, Adamsiella pulchrior (Adams, 1845)
pulverulenta, Eutudorops pulverulenta (Wright in Pfeiffer, 1864)
pulverulentum, Cyclostoma pulverulentum Philippi, 0 - syn of: Ostodes plicatus (Gould, 1847)
pumilum, Chondropomium pumilum Watters & Duffy, 2010
punctolineatum, Chondropometes exquisitum punctolineatum Torre & Bartsch
puntillense, Opisthosiphon subobtectum puntillense Torre & Bartsch
pupaeforme, Parachondria pupaeforme Sowerby, 1843 - syn of: Licina pupiformis (Sowerby, 1843)
pupiformis, Licina pupiformis (Sowerby, 1843)
pupoides, Opisthosiphon pupoides (Morelet, 1849)
pupoides, Cyclostoma pupoides Anton, 1839 - syn of: Omphalotropis pupoides (Anton, 1839)
pupoides bibijaguaense, Opisthosiphon pupoides bibijaguaense Torre & Bartsch, 1941
pupoides velazquezi, Opisthosiphon pupoides velazquezi Torre & Bartsch, 1941
purialense, Chondrothyrium violaceum purialense Sánchez Roig
putre, Annularisca auricoma putre Gundlach
pyrostoma, Tropidophora pyrostoma (Sowerby, 1843)
pyrostoma, Parachondria pyrostoma Pilsbry, 1930
quaternatum, Hispanipoma quaternatum (Lamarck)
quaternatum cabaretense, Hispanipoma quaternatum cabaretense Bartsch, 1946
quaternatum charmettense, Hispanipoma quaternatum charmettense Bartsch, 1946
quaternatum dentilobatum, Hispanipoma quaternatum dentilobatum (Weinland)
quaternatum monticolum, Hispanipoma quaternatum monticolum Bartsch, 1946
quaternatum nodulatum, Hispanipoma quaternatum nodulatum Poey, 1851 - syn of: Rhytidopoma nodulatum (Poey, 1851)
quesadai, Opisthosiphon quesadai Aguayo, 1932
quesadai pujalsi, Opisthosiphon quesadai pujalsi Aguayo, 1953
quignonesi, Chondropoma ernesti quignonesi Aguayo
quignonesi, Limadora garciana quignonesi Aguayo
quinquefasciatum, Pomatias quinquefasciatum Adams, 1849 - syn of: Parachondria columna (Wood, 1828)
quinquifasciata, Parachondria quinquifasciata Adams, 1849 - syn of: Parachondria columna (Wood, 1828)
quintanense, Opisthosiphon subobtectum quintanense Torre & Bartsch
quinti, Opisthosiphon quinti Torre & Bartsch, 1941
quinti petri, Opisthosiphon quinti petri Aguayo & Jaume, 1945
quisquense, Chondropoma quisquense Bartsch, 1946
quisquense sculptior, Chondropoma quisquense sculptior Bartsch, 1946
radiolatum, Dioscopoma radiolatum (Von Martens, 1881)
radiosum, Choanopoma radiosum (Morelet, 1849)
ramonensis, Chondropoma erectum ramonensis Torre & Bartsch
ramsdeni, Annularisca ramsdeni (Pilsbry & Henderson, 1912)
rangeliana, Annularia rangeliana Poey, 1851 - syn of: Tudorina rangelina (Poey, 1851)
rangelina, Tudorina rangelina (Poey, 1851)
rangii, Cyclostoma rangii Férussac, 1827
raricosta, Pomatias raricosta (Wollaston, 1878)
raveni, Cistulops raveni (Crosse, 1872)
rawsoni, Chondropoma rawsoni Pfeiffer, 1867
rayi, Opisthosiphon rayi Torre & Bartsch
recluzianum, Cyclostoma recluzianum Pfeiffer - syn of: Gonatorhaphe fornicata Pfeiffer
recta, Wrightudora recta (Gundlach in Pfeiffer, 1863)
recta barreti, Wrightudora recta barreti (Torre & Bartsch, 1941)
recta martiensis, Wrightudora recta martiensis (Torre & Bartsch, 1941)
redfieldianus, Colobostylus redfieldianus (Adams)
redfieldianus magnitesta, Colobostylus redfieldianus magnitesta (Baker, 1934)
reesi, Tropidophora reesi Fischer-Piette, 1949
reticulata, Chondrothyretes reticulata (Torre & Bartsch, 1938)
reticulata, Tropidophora reticulata Adams & Reeve, 1850
reticulata costanerensis, Chondrothyretes reticulata costanerensis (Torre & Bartsch, 1938)
reticulata encinarensis, Chondrothyretes reticulata encinarensis (Torre & Bartsch, 1938)
reticulata fratercula, Chondrothyretes reticulata fratercula (Torre & Bartsch, 1938)
reticulata fraterna, Chondrothyra reticulata fraterna Torre & Bartsch, 1942 - syn of: Chondrothyretes reticulata fratercula (Torre & Bartsch, 1938)
reticulata galerensis, Chondrothyretes reticulata galerensis (Torre & Bartsch, 1938)
reticulata natensoni, Chondrothyretes reticulata natensoni Sánchez Roig, 1951
reticulata pellucida, Chondrothyretes reticulata pellucida (Torre & Bartsch, 1938)
reticulata petricola, Chondrothyretes reticulata petricola (Torre & Bartsch, 1938)
reticulata petricolella, Chondrothyretes reticulata petricolella (Torre & Bartsch, 1938)
reticulata reticulella, Chondrothyretes reticulata reticulella (Torre & Bartsch, 1938)
reticulata saccharinella, Chondrothyretes reticulata saccharinella (Torre & Bartsch, 1938)
reticulata scrobiculata, Chondrothyretes reticulata scrobiculata (Torre & Bartsch, 1938)
reticulata versicolor, Chondrothyretes reticulata versicolor (Torre & Bartsch, 1938)
reticulatum, Dioscopoma conicum reticulatum Neubert
reticulatus, Pomatias reticulatus Kobelt, 1879 - syn of: Tudorella sulcata (Draparnaud, 1805)
reticulella, Chondrothyretes reticulata reticulella Torre & Bartsch
retreatense, Chondropoma retreatense Baker, 1934
retreatensis, Parachondria sericina retreatensis Baker
retrorsa, Annularia retrorsa Adams, 1850
revinctum, Chondropoma revinctum (Poey, 1851)
revinctum biserranum, Chondropoma revinctum biserranum Torre & Bartsch, 1938
revocatum, Chondropoma revocatum (Gundlach in Pfeiffer, 1857)
revoili, Georgia revoili Bourguignat, 1882
revoili, Rochebrunia revoili Bourguignat, 1882 - syn of: Otopoma perrieri Bourguignat, 1881
rhachitica, Turrithyra sinuosa rhachitica Torre & Bartsch
rhecta, Meganipha rhecta Thompson, 1978
ricardi, Chondropoma poeyanum ricardi Torre
rigidulum, Choanopoma rigidulum (Morelet, 1851)
riisei, Parachondria riisei (Pfeiffer, 1852)
rinconadense, Chondropometes torrei rinconadense Torre & Bartsch
riohondensis, Chondrothyrella ottonis riohondensis Torre & Bartsch
ripacurcicus, Pomatias ripacurcicus Bofill, 1915
rivulare, Pomatias rivulare (Eichwald, 1829)
roatanensis, Choanopoma andrewsi roatanensis Richards
roblensis, Eutudora transitoria roblensis Aguayo & Jaume
robustum, Weinlandipoma gonavense robustum Bartsch
rocai, Troschelvindex rocai (Torre & Bartsch, 1941)
rocai, Chondrothyrium violaceum rocai Torre & Bartsch
rocai, Blaesospira rocai Torre & Bartsch, 1941
rocai, Eutudorops rocai Torre & Bartsch, 1941
rodriguezensis, Cyclotopsis haemastoma rodriguezensis Crosse
roemeri, Annularisca roemeri Torre & Bartsch, 1941 - syn of: Annularisca romeri (Torre & Bartsch, 1941)
rolandoi, Chondropoma rolandoi Aguayo, 1943
rollei, Rhytidopoma rollei (Weinland)
rollei, Licina rollei Maltzan, 1888
rollei blanchardi, Rhytidopoma rollei blanchardi Bartsch, 1946
rollei cayemitense, Rhytidopoma rollei cayemitense Bartsch, 1946
rollei fauxcapense, Rhytidopoma rollei fauxcapense Bartsch, 1946
rollei vachecolum, Rhytidopoma rollei vachecolum Bartsch, 1946
romeri, Annularisca romeri (Torre & Bartsch, 1941)
rondeklipensis, Tudora megacheilus rondeklipensis Baker
rosacea, Rhytidothyra bilabiata rosacea Torre & Bartsch
rosaliae, Abbottella rosaliae (Pfeiffer, 1858)
rosariense, Chondropoma carenasense rosariense Torre & Bartsch
rosariensis, Chondrothyretes impressa rosariensis Torre & Bartsch
rosarioense, Rhytidopoma pinense rosarioense Torre & Bartsch
rosea, Rhytidothyra bilabiata rosea Torre & Bartsch
rosenbergi, Annularia rosenbergi Bank, 2008
rosenbergiana, Tudora rosenbergiana (Preston, 1911)
roseoapicata, Chondrothyretes cerina roseoapicata Torre & Bartsch
roseum, Cyclostoma roseum Gould, 1847
rotundata, Eutudorops rotundata (Poey, 1851)
rubens, Cyclostoma rubens Quoy & Gaimard, 1832 - syn of: Omphalotropis rubens (Quoy & Gaimard, 1832)
rubeschi, Cyclostoma rubeschi Reuss, 1849 † - syn of: Staadtiellopsis rubeschi (Reuss, 1849) † (FOSSIL)
rubicollum, Chondropometes saccharinum rubicollum Torre & Bartsch
rubicundum, Chondropomium rubicundum (Morelet, 1849)
rubrum, Chondropoma unilabiatum rubrum Torre & Bartsch
rufilabris, Parachondria augustae rufilabris Adams
rufilabrum, Chondropoma rufilabrum (Potiez & Michaud, 1838)
rufopictum, Chondropoma rufopictum (Gundlach in Pfeiffer, 1860)
rufopictum moaense, Chondropoma rufopictum moaense Sánchez Roig, 1951
rugulosum, Rhytidopoma rugulosum (Pfeiffer, 1839)
rupestris, Tudora rupestris Baker, 1924 - syn of: Tudora rupis Baker, 1924
rupis, Tudora rupis Baker, 1924
rupis grandiensis, Tudora rupis grandiensis Baker, 1924 - syn of: Tudora muskusi grandiensis Baker, 1924
rupis hatoensis, Tudora rupis hatoensis Hummelinck, 1940
rupis newportensis, Tudora rupis newportensis Baker, 1924
rupis styriaca, Tudora rupis styriaca Baker, 1924
russelli, Chondropoma russelli Clench, 1937
rutila, Chondrothyretes egregia rutila Bartsch & Torre
rutila, Chondrothyra rutila Torre & Bartsch, 1938
rutila alba, Chondrothyra rutila alba Sánchez Roig, 1951
rutila nebulosa, Chondrothyra rutila nebulosa Torre & Bartsch, 1938
sabinalense, Opisthosiphon sabinalense Sánchez Roig, 1949
saccharinella, Chondrothyretes reticulata saccharinella Torre & Bartsch
saccharinum, Chondropometes saccharinum Torre & Bartsch, 1938
saccharinum rubicollum, Chondropometes saccharinum rubicollum Torre & Bartsch, 1938
sagebieni, Chondropometes sagebieni (Poey, 1858)
sagebieni disjunctum, Chondropometes sagebieni disjunctum Torre & Bartsch, 1938
sagebieni mendozense, Chondropometes sagebieni mendozense Torre & Bartsch, 1938
sagebieni parvum, Chondropometes sagebieni parvum Torre & Bartsch, 1938
sagebieni portalesense, Chondropometes sagebieni portalesense Torre & Bartsch, 1938
sagittifer, Colobostylus sagittifer (Adams, 1850)
sagra, Chondropoma pictum sagra D'Orbigny
saguaensis, Eutudora limbifera saguaensis Aguayo & Jaume
saguaensis, Hendersonina canaliculata saguaensis Torre & Bartsch
sainzi, Opisthosiphon sainzi Aguayo, 1934
sainzi insolutus, Opisthosiphon sainzi insolutus Clench & Aguayo, 1949
salarium, Chondropoma biforme salarium Bartsch
salebrosum, Cyclostoma salebrosum Morelet, 1849
salleanum, Chondropoma salleanum (Pfeiffer, 1850)
sallei, Kisslingia vermiculata sallei Bartsch
saltrouense, Chondropomium gimbiense saltrouense Bartsch
salustii, Opisthosiphon salustii Torre & Henderson, 1920
salvati, Tropidophora salvati Fischer-Piette & Bedoucha, 1965
samanensis, Abbottella samanensis Bartsch, 1946
sambiranoensis, Tropidophora fuscula sambiranoensis Fischer-Piette
sanchezi, Abbottella sanchezi Bartsch, 1946
sanchezi, Opisthosiphon sanchezi Torre & Bartsch, 1941
santacruzensis, Parachondria santacruzensis (Pfeiffer, 1855)
santafeum, Chondropoma delatreanum santafeum Torre & Bartsch
santaluciense, Chondropoma ernesti santaluciense Torre & Bartsch
saonaense, Chondropomium eusarcum saonaense Bartsch
sargenti, Chondropoma sargenti Torré
sargi, Ctenopoma sargi Fischer & Crosse, 1890 - syn of: Choanopoma radiosum (Morelet, 1849)
sarodranensis, Tropidophora sarodranensis Fischer-Piette, Blanc & Salvat, 1969
saturata, Tropidophora alluaudi saturata Dautzenberg
saugeti, Chondrothyrium violaceum saugeti Torre & Bartsch
sauliae, Parachondria sauliae (Sowerby, 1843)
sauvallei, Annularops sauvallei (Gundlach in Pfeiffer, 1863)
sauvallei chorrerensis, Annularops sauvallei chorrerensis (Torre & Bartsch, 1941)
sauvallei cortinal, Annularops sauvallei cortinal (Torre & Bartsch, 1941)
sauvallei fontei, Annularops sauvallei fontei Sánchez Roig, 1951
sauvallei natensoni, Annularops sauvallei natensoni (Torre & Bartsch, 1941)
sauvallei suavallei, Annularops sauvallei suavallei (Gundlach, 1863)
saxicolum, Chondropoma graniferum saxicolum Bartsch
scabrata, Limadora scabrata (Torre & Bartsch, 1941)
scabricula, Annularia scabricula Sowerby, 1843 - syn of: Annularia scabriuscula (Sowerby, 1843)
scabriuscula, Annularia scabriuscula (Sowerby, 1843)
scabriuscula amabilis, Annularia scabriuscula amabilis (Adams, 1849)
scalarinum, Rhytidopoma scalarinum Jaume & Sánchez De Fuentes, 1944
scalaris, Chondrothyretes parilis scalaris Torre & Bartsch
scalaris, Turrithyra deceptor scalaris Torre & Bartsch
scalata, Tropidophora scalata (Mousson, 1882)
schaliei, Chondropoma schaliei Baker, 1950
schneidi, Pomatias antiquus schneidi Jooss (FOSSIL)
schrammeni, Pomatias schrammeni (Andreae, 1902) † (FOSSIL)
schwartii, Chondropoma erectum schwartii Jaume
scitulum, Cyclostoma scitulum Gould, 1847 - syn of: Atropis scitula (Gould, 1847)
scobina, Hendersonina scobina (Gundlach, 1863)
scobina galalonensis, Hendersonina scobina galalonensis Torre & Bartsch, 1938
scopulorum, Opisthosiphon insulanum scopulorum Torre & Bartsch
scopulorum, Opisthosiphon detectum scopulorum Torre & Bartsch
scopulorum, Chondropometes scopulorum Torre & Bartsch, 1938
scopulorum cumbrense, Chondropometes scopulorum cumbrense Torre & Bartsch, 1938
scopulorum perplexum, Chondropometes scopulorum perplexum Torre & Bartsch, 1938
scripta, Chondrothyretes tenebrata scripta Torre & Bartsch
scrobiculata, Leonia scrobiculata (Mousson, 1874)
scrobiculata, Chondrothyretes reticulata scrobiculata Torre & Bartsch
sculptior, Chondropoma quisquense sculptior Bartsch
sculptum, Opisthosiphon sculptum (Gundlach in Pfeiffer, 1857)
secana, Tudora secana Baker, 1923
secans, Tropidophora secans Fischer-Piette, 1949
secunda, Tropidophora secunda Fischer-Piette & Bedoucha, 1965
segregatum, Chondropometes segregatum Torre & Bartsch, 1938
segregatum arangoi, Chondropometes segregatum arangoi Torre & Bartsch, 1938
segregatum felipense, Chondropometes segregatum felipense Torre & Bartsch, 1938
segregatum lagunitasense, Chondropometes segregatum lagunitasense Torre & Bartsch, 1938
segregatum laureani, Chondropometes segregatum laureani Torre & Bartsch, 1938
segregatum mameyi, Chondropometes segregatum mameyi Torre & Bartsch, 1938
segregatum palmae, Chondropometes segregatum palmae Sánchez Roig, 1951
segregatum sporadicum, Chondropometes segregatum sporadicum Torre & Bartsch, 1938
segregatum vallei, Chondropometes segregatum vallei Torre & Bartsch, 1938
seibaboense, Opisthosiphon obtectum seibaboense Torre & Bartsch
semicana, Annularops semicana (Morelet, 1851)
semicana nana, Annularops semicana nana (Torre & Bartsch, 1941)
semicana organicola, Annularops semicana organicola (Torre & Bartsch, 1941)
semicora, Turrithyra semicora Torre & Bartsch, 1941
semicora oicium, Turrithyra semicora oicium Torre & Bartsch, 1941
semicoronata, Wrightudora semicoronata (Gundlach in Pfeiffer, 1861)
semidecussata, Tropidophora semidecussata Pfeiffer, 1847
semidecussata aplustre, Tropidophora semidecussata aplustre (Sowerby, 1849)
semidecussata macaraea, Tropidophora semidecussata macaraea Petit De La Saussaye, 1853
semidecussata paulucciae, Tropidophora semidecussata paulucciae Crosse & Fischer, 1882 - syn of: Tropidophora paulucciae (Crosse & Fischer, 1882)
semidecussata pauluccioides, Tropidophora semidecussata pauluccioides Fischer-Piette, Blanc, Blanc & Salvat, 1993
semidecussata volvuloides, Tropidophora semidecussata volvuloides Sowerby, 1850
semilabris, Chondropoma semilabris (Lamarck)
semilineata, Tropidophora semilineata Morelet, 1881 - syn of: Tropidophora semilirata Morelet, 1881
semilirata, Tropidophora semilirata Morelet, 1881
semistriata, Cyclotopsis semistriata (Sowerby, 1843)
senticosa, Licina senticosa Shuttleworth, 1854
sericea, Tropidophora sericea Griffiths & Herbert, 2013
sericina, Parachondria sericina (Adams, 1851)
sericina retreatensis, Parachondria sericina retreatensis (Baker, 1934)
serranum, Chondrothyrium violaceum serranum Torre & Bartsch
serriferum, Pomatias serriferum Adams, 1849 - syn of: Adamsiella grayana (Pfeiffer, 1846)
serrulata, Tropidophora socotrana serrulata Neubert
shepardiana, Parachondria shepardiana Adams, 1850 - syn of: Parachondria sheppardiana (Adams, 1850)
sheppardiana, Parachondria sheppardiana (Adams, 1850)
shuttleworthi, Chondrothyretes shuttleworthi (Pfeiffer, 1851)
shuttleworthi atriola, Chondrothyretes shuttleworthi atriola (Torre & Bartsch, 1938)
shuttleworthi catalinensis, Chondrothyretes shuttleworthi catalinensis (Torre & Bartsch, 1938)
shuttleworthi clivicola, Chondrothyretes shuttleworthi clivicola (Torre & Bartsch, 1938)
shuttleworthi cumbrensis, Chondrothyretes shuttleworthi cumbrensis (Torre & Bartsch, 1938)
shuttleworthi incrassatum, Chondrothyretes shuttleworthi incrassatum (Wright)
shuttleworthi infernalis, Chondrothyretes shuttleworthi infernalis Sánchez Roig, 1951
shuttleworthi mameyensis, Chondrothyretes shuttleworthi mameyensis (Torre & Bartsch, 1938)
shuttleworthi perplexa, Chondrothyretes shuttleworthi perplexa (Torre & Bartsch, 1938)
shuttleworthi portica, Chondrothyretes shuttleworthi portica (Torre & Bartsch, 1938)
shuttleworthi torrei, Chondrothyretes shuttleworthi torrei Sánchez Roig, 1951
sibanicuensis, Bermudezia bermudezi sibanicuensis Torre & Bartsch
siculus, Pomatias siculus Kobelt, 1879 - syn of: Pomatias elegans (Müller, 1774)
sifontesi, Bermudezia sifontesi (Torre & Bartsch, 1941)
signae, Chondropometes magnum signae Torre & Bartsch
signata, Chondrothyrella assimilis signata Torre & Bartsch
sillaensis, Limadora garciana sillaensis Torre & Bartsch
silvatica, Chondropomorus silvatica MANCA, 2016 - syn of: Parachondria silvatica Watters, 2016
silvatica, Parachondria silvatica Watters, 2016
similis, Tudora similis Gray in Sowerby, 1850
simonis, Chondrothyretes parilis simonis Torre & Bartsch
simplex, Chondropomorus simplex Pfeiffer
simpsoni, Opisthosiphon simpsoni Bartsch, 1946
simpsoni, Torrellisca simpsoni Henderson & Bartsch, 1920
simpsoni abacoensis, Opisthosiphon simpsoni abacoensis Bartsch, 1946
simpsoni terneroensis, Torrellisca simpsoni terneroensis Torre & Bartsch, 1941
simpsoni williamsae, Opisthosiphon simpsoni williamsae Watters & Duffy, 2010
simulacrum, Cyclostoma simulacrum Morelet, 1849 - syn of: Tomocyclus simulacrum (Morelet, 1849)
simulans, Opisthocoelicum simulans Torre & Bartsch, 1941
sinuosa, Turrithyra sinuosa (Wright in Pfeiffer, 1862)
sinuosa hutia, Turrithyra sinuosa hutia (Torre & Bartsch, 1938)
sinuosa opposita, Turrithyra sinuosa opposita (Torre & Bartsch, 1938)
sinuosa rhachitica, Turrithyra sinuosa rhachitica (Torre & Bartsch, 1938)
sinuosa vicina, Turrithyra sinuosa vicina Torre & Bartsch, 1938
sinuosa vicinia, Turrithyra sinuosa vicinia Torre & Bartsch, 1938 - syn of: Turrithyra sinuosa vicina Torre & Bartsch, 1938
socotrana, Tropidophora socotrana (Godwin-Austen, 1881)
socotrana, Otopoma clathratula socotrana Godwin-Austen
socotrana balfouri, Tropidophora socotrana balfouri Godwin-Austen, 1881 - syn of: Tropidophora balfouri (Godwin-Austen, 1881)
socotrana serrulata, Tropidophora socotrana serrulata Neubert, 2009
solada, Chondrothyretes impressa solada Torre & Bartsch
solidulum, Chondropoma solidulum (Gundlach in Pfeiffer, 1860)
solidulum banesense, Chondropoma solidulum banesense Aguayo, 1944
solidulum isabelae, Chondropoma solidulum isabelae Aguayo, 1943
solidulum lucreciae, Chondropoma solidulum lucreciae Aguayo, 1943
solidulum melanaxis, Chondropoma solidulum melanaxis Aguayo, 1943
solidulum tanamense, Chondropoma solidulum tanamense Torre & Bartsch, 1938
solidulum vitaense, Chondropoma solidulum vitaense Torre & Bartsch, 1938
solidum, Pomatias solidum Adams, 1849 - syn of: Tudora jayana (Adams, 1849)
solum, Chondropoma solum Bartsch, 1946
soluta, Leiabbottella soluta (Pfeiffer, 1852)
songoensis, Chondropoma chordatum songoensis Torre & Bartsch
sopimpense, Chondrothyrium violaceum sopimpense Torre & Bartsch
sordidum, Cyclostoma sordidum (Gundlach, 1857)
soror, Chondropoma soror Pilsbry, 1930 - syn of: Chondropoma gnote Pilsbry, 1935
sosai, Opisthosiphon sosai Torre & Bartsch, 1941
sosuaensis, Abbottella sosuaensis (Bartsch, 1946)
soulaiana, Tropidophora soulaiana Fischer-Piette & Testud, 1973
souleyetianum, Lithidion souleyetianum (Petit De La Saussaye, 1850)
sowerbyi, Tropidophora sowerbyi Pfeiffer
spe, Chondropometes concolor spe Torre & Bartsch
spencei, Licina spencei Watters & Duffy, 2010
spinosissimum, Xenopoma spinosissimum Torre & Bartsch, 1941
spinulosa, Annularia spinulosa Adams, 1849
sporadicum, Chondropometes segregatum sporadicum Torre & Bartsch
spurca, Cyclotopsis spurca (Grateloup, 1839)
spurca, Annularops coronadoi spurca Aguayo
squamosum, Cyclostoma squamosum Peyrot, 1933 † (FOSSIL)
stigmosa, Parachondria stigmosa Watters, 2016
stolidum, Chondropoma mariguanicolum stolidum Bartsch
storchi, Subannularia storchi (Pfeiffer, 1861)
storchi laevior, Subannularia storchi laevior (Aguayo, 1944)
storchi nipensis, Subannularia storchi nipensis (Torre & Bartsch, 1941)
straminea, Rhytidothyra bilabiata straminea Torre & Bartsch
striatus, Pomatias striatus Donovan, 1779 - syn of: Pomatias elegans (Müller, 1774)
stricticostatum, Weinlandipoma stricticostatum (Maltzan)
strigatum, Cyclostoma strigatum Gould, 1847 - syn of: Ostodes strigatus (Gould, 1847)
strigillata, Pomatias strigillata Wagner, 1897 - syn of: Eupomatias henricae strigillatum Wagner, 1897
sturanii, Pomatias sturanii Wagner, 1897 - syn of: Cochlostoma gracile sturanyi (Wagner, 1897)
sturanyi, Pomatias sturanyi Wagner, 1897 - syn of: Cochlostoma gracile sturanyi (Wagner, 1897)
styriaca, Tudora rupis styriaca Baker
suavallei, Annularops sauvallei suavallei Gundlach
suavis, Wrightudora suavis (Torre & Bartsch, 1941)
subangulatum, Chondropoma subangulatum Von Martens, 1890 - syn of: Chondropomium rubicundum (Morelet, 1849)
subappendiculatum, Chondropoma laetum subappendiculatum Torre & Bartsch
subcampanulatum, Pomatias subcampanulatum Mabille, 1886
subcerina, Chondrothyretes cerina subcerina Torre & Bartsch
subdilatatum, Chondropoma dilatatum subdilatatum Torre & Bartsch
subdiscoidea, Cyclotopsis subdiscoidea (Sowerby, 1850)
subdisjuncta, Cyclostoma subdisjuncta Adams, 1868 - syn of: Tubiola subdisjuncta (Adams, 1868)
subdygana, Tropidophora subdygana Fischer-Piette, 1949
subegregia, Chondrothyra subegregia Torre & Bartsch, 1938
subegregia paterna, Chondrothyra subegregia paterna Torre & Bartsch, 1938
subegregia patricia, Chondrothyra subegregia patricia Torre & Bartsch, 1938
subguantanamense, Chondropoma marginalbum subguantanamense Torre & Bartsch
subincrassata, Chondrothyretes incrassata subincrassata Torre & Bartsch
subobesum, Chondropoma obesum subobesum Torre & Bartsch
subobtectum, Opisthosiphon subobtectum Torre & Bartsch, 1941
subobtectum guajabanense, Opisthosiphon subobtectum guajabanense Torre & Bartsch, 1941
subobtectum puntillense, Opisthosiphon subobtectum puntillense Torre & Bartsch, 1941
subobtectum quintanense, Opisthosiphon subobtectum quintanense Torre & Bartsch, 1941
subobturatum, Opisthosiphon subobturatum Torre & Henderson, 1920
subobturatum tinajaense, Opisthosiphon subobturatum tinajaense Torre & Bartsch, 1941
subobturatum tinjaense, Opisthosiphon subobturatum tinjaense Torre & Bartsch, 1941 - syn of: Opisthosiphon subobturatum tinajaense Torre & Bartsch, 1941
subreticulata, Parachondria subreticulata (Maltzan)
subtenebrosa, Chondrothyrella tenebrosa subtenebrosa Torre & Bartsch
succineum, Stoastotna succineum Pfeiffer, 0 † - syn of: Electrina succinea (Sowerby, 1832) † (FOSSIL)
succineum, Cyclostoma succineum Sowerby, 1832 † - syn of: Electrina succinea (Sowerby, 1832) † (FOSSIL)
sulaense, Chondropoma biforme sulaense Bartsch
sulcata, Tudorella sulcata (Draparnaud, 1805)
sulcata mauretanica, Tudorella sulcata mauretanica (Lamarck, 1811)
sulcata melitense, Tudorella sulcata melitense (Sowerby, 1843)
sulcata multisulcata, Tudorella sulcata multisulcata (Potiez & Michaud, 1838)
sulcata pachya, Tudorella sulcata pachya (Pallary, 1936)
sulcata panormitana, Tudorella sulcata panormitana Sacchi, 1954
sulcosum, Bermudezsiphona obturatum sulcosum Torre & Bartsch
sumichrasti, Choanopoma sumichrasti Crosse & Fischer, 1874
sumichrasti chiapasense, Choanopoma sumichrasti chiapasense Crosse & Fischer, 1877 - syn of: Choanopoma chiapasense (Crosse & Fischer, 1877)
superbus, Chondropoma superbus Henderson & Simpson, 1902
surda, Tropidophora surda Fischer-Piette, Blanc & Salvat, 1969
suturale, Lithidion suturale Neubert, 2002
swifti, Chondropoma swifti (Shuttleworth, 1854)
swifti azuense, Chondropoma swifti azuense Bartsch, 1946
swifti barahonense, Chondropoma swifti barahonense Bartsch, 1946
swifti inequilabrum, Chondropoma swifti inequilabrum Bartsch, 1946
swifti weinlandi, Chondropoma swifti weinlandi (Pfeiffer)
swiftianum, Chondropoma swiftianum (Weinland)
tacrensis, Annularisca tacrensis Torre & Bartsch, 1941
tahitensis, Cyclostoma tahitensis Pease, 1861 - syn of: Atropis scitula (Gould, 1847)
tanamense, Chondropoma solidulum tanamense Torre & Bartsch
tanamensis, Chondropoma chordatum tanamensis Torre & Bartsch
tanamensis, Diplopoma architectonica tanamensis Torre & Bartsch
tappaniana, Parachondria tappaniana (Adams, 1851)
tectilabre, Tudora tectilabre (Adams, 1849)
tejedori, Chondrothyrium tejedori Sánchez Roig, 1951
tenebrata, Chondrothyretes tenebrata (Torre & Bartsch, 1939)
tenebrata albolabris, Chondrothyretes tenebrata albolabris (Torre & Bartsch, 1938)
tenebrata ayuensis, Chondrothyretes tenebrata ayuensis (Torre & Bartsch, 1938)
tenebrata brevior, Chondrothyretes tenebrata brevior (Torre & Bartsch, 1938)
tenebrata canaletensis, Chondrothyretes tenebrata canaletensis (Torre & Bartsch, 1938)
tenebrata montalvensis, Chondrothyretes tenebrata montalvensis (Torre & Bartsch, 1938)
tenebrata scripta, Chondrothyretes tenebrata scripta (Torre & Bartsch, 1938)
tenebrata variabilis, Chondrothyretes tenebrata variabilis (Torre & Bartsch, 1938)
tenebrosa, Chondrothyrella tenebrosa (Morelet, 1849)
tenebrosa, Abbottella tenebrosa Watters, 2013
tenebrosa caimitensis, Chondrothyrella tenebrosa caimitensis Torre & Bartsch, 1938
tenebrosa subtenebrosa, Chondrothyrella tenebrosa subtenebrosa Torre & Bartsch, 1938
tentorium, Abbottella tentorium (Pfeiffer, 1850)
tenue, Chondrothyrium violaceum tenue Torre & Bartsch
tenuicostum, Opisthosiphon obtectum tenuicostum Torre & Henderson
tenuis, Tropidophora tenuis (Sowerby, 1843)
tenuisculptum, Chondropoma tenuisculptum Aguayo, 1939
tenuistriatus, Colobostylus tenuistriatus (Adams, 1849)
terebrale, Cyclostoma terebrale Gould, 1847 - syn of: Atropis terebralis (Gould, 1847)
terecostata, Choanopoma terecostata Thompson, 1966
teres, Cinnabarica teres Neubert, 2009
ternata, Eutudora limbifera ternata Reeve
terneroensis, Annularia terneroensis (Torre & Bartsch, 1941)
terneroensis, Torrellisca simpsoni terneroensis Torre & Bartsch
terneroensis indioensis, Annularia terneroensis indioensis (Torre & Bartsch, 1941)
tersum, Opisthosiphon tersum Torre & Henderson, 1921
testudinea, Parachondria fascia testudinea Adams
textum, Chondropoma textum (Gundlach in Pfeiffer, 1858)
textum booneae, Chondropoma textum booneae (Welch, 1934)
textum portillensis, Chondropoma textum portillensis (Torre & Bartsch, 1941)
texturatum, Cyclostoma texturatum Sowerby, 1850 - syn of: Amphicyclotus texturatus (Sowerby, 1850)
theobaldi, Ligatella theobaldi Fischer-Piette, Blanc, Blanc & Salvat, 1993
thesauri, Tropidophora thesauri Fischer-Piette, 1945
thomasi, Tudorata thomasi Solem, 1961
thompsoni, Leiabbottella thompsoni Watters, 2013
thysanoraphe, Colobostylus thysanoraphe (Sowerby, 1843)
tiara, Cyclostoma tiara Gould - syn of: Ostodes tiara Gould
tinajaense, Opisthosiphon subobturatum tinajaense Torre & Bartsch
tollini, Limadora tollini (Ramsden, 1915)
tomlini, Tropidophora tomlini Fischer-Piette, 1949
toroense, Chondropoma carenasense toroense Torre & Bartsch
toroensis, Chondrothyra foveata toroensis Torre & Bartsch
toroensis, Annularisca toroensis Torre & Bartsch, 1941
torquata, Eutudorops torquata (Gutiérrez in Poey, 1858)
torrebartschi, Annularisca torrebartschi (Jaume, 1984)
torrei, Diplopoma torrei (Ramsden, 1915)
torrei, Eutudora transitoria torrei Aguayo & Jaume
torrei, Chondropometes torrei Bartsch, 1937
torrei, Chondrothyrium torrei Jaume & Sánchez De Fuentes, 1943
torrei, Chondrothyretes shuttleworthi torrei Sánchez Roig
torrei, Opisthosiphon torrei Welch, 1929
torrei affine, Chondropometes torrei affine Torre & Bartsch, 1938
torrei aguayoi, Chondrothyrium torrei aguayoi Jaume & Sánchez De Fuentes, 1943
torrei alveare, Chondropometes torrei alveare Torre & Bartsch, 1938
torrei antoniense, Chondropometes torrei antoniense Torre & Bartsch, 1938
torrei antonitense, Chondropometes torrei antonitense Torre & Bartsch, 1938
torrei cingulatum, Chondropometes torrei cingulatum Torre & Bartsch, 1938
torrei colmenaris, Diplopoma torrei colmenaris Sánchez Roig, 1951
torrei columellare, Chondropometes torrei columellare Torre & Bartsch, 1938
torrei flammilabre, Chondropometes torrei flammilabre Torre & Bartsch, 1938
torrei flavidum, Diplopoma torrei flavidum Torre & Bartsch, 1938
torrei gratiosum, Chondropometes torrei gratiosum Torre & Bartsch, 1938
torrei iosaturatum, Chondropometes torrei iosaturatum Torre & Bartsch, 1938
torrei jaguaense, Chondropometes torrei jaguaense Torre & Bartsch, 1938
torrei luteilabre, Chondropometes torrei luteilabre Torre & Bartsch, 1938
torrei minaense, Chondropometes torrei minaense Torre & Bartsch, 1938
torrei pallidulum, Diplopoma torrei pallidulum Torre & Bartsch, 1938
torrei rinconadense, Chondropometes torrei rinconadense Torre & Bartsch, 1938
torreiana, Torrella torreiana (Gundlach in Arango, 1878)
tortolensis, Chondropoma tortolensis Pfeiffer, 1857
tortuensis, Troschelvindex tortuensis Bartsch, 1946
tosta, Chondrothyra tosta (Torre & Bartsch, 1938)
tosta aurantia, Chondrothyra tosta aurantia Torre & Bartsch, 1938
tosta hesperia, Chondrothyra tosta hesperia Torre & Bartsch, 1938
tosta lactea, Chondrothyra tosta lactea Torre & Bartsch, 1938
tosta pertosta, Chondrothyra tosta pertosta Torre & Bartsch, 1938
trachyderma, Chondropoma trachyderma Pilsbry, 1933
tracta, Troschelvindex tracta (Gundlach in Poey, 1858)
trailii, Cyclotopsis trailii (Pfeiffer, 1862)
traillii, Cyclotopsis traillii Pfeiffer, 1862 - syn of: Cyclotopsis trailii (Pfeiffer, 1862)
transitoria, Eutudora transitoria (Torre & Bartsch, 1941)
transitoria distincta, Eutudora transitoria distincta (Torre & Bartsch, 1941)
transitoria roblensis, Eutudora transitoria roblensis Aguayo & Jaume, 1954
transitoria torrei, Eutudora transitoria torrei Aguayo & Jaume, 1954
transitorium, Opisthosiphon berryi transitorium Torre & Henderson
transitorium, Opisthosiphon paredonense transitorium Torre & Henderson
transvaalensis, Tropidophora transvaalensis (Melvill & Ponsonby, 1891)
tricarinata, Tropidophora tricarinata (Müller, 1774)
tricarinata ambodiarensis, Tropidophora tricarinata ambodiarensis Fischer-Piette, Blanc, Blanc & Salvat, 1993
tricarinata bicarinata, Tropidophora tricarinata bicarinata (Sowerby, 1843)
tricarinata brevimargo, Tropidophora tricarinata brevimargo Mousson, 1882
tricarinata chenui, Tropidophora tricarinata chenui Fischer-Piette, 1949
tricarinata citrina, Tropidophora tricarinata citrina (Sowerby, 1843)
tricarinata consanguinea, Tropidophora tricarinata consanguinea (Sowerby, 1874)
tricarinata euchila, Tropidophora tricarinata euchila (Pfeiffer, 1851)
tricarinata jousseaumia, Tropidophora tricarinata jousseaumia Mabille
tricarinata kianjavatoi, Tropidophora tricarinata kianjavatoi P. Fischer
tricarinata madagascariensis, Tropidophora tricarinata madagascariensis (Gray, 1834)
tricarinata mahaderensis, Tropidophora tricarinata mahaderensis Fischer-Piette, Cauquoin & Testud, 1973
tricarinata multifasciata, Tropidophora tricarinata multifasciata (Grateloup, 1840)
tricarinata unicarinata, Tropidophora tricarinata unicarinata (Lamarck, 1822)
tricarinata zonulata, Tropidophora tricarinata zonulata Sowerby, 1850
trincherasense, Opisthosiphon banaoense trincherasense Torre & Bartsch
trinidadensis, Torrella trinidadensis Torre & Bartsch, 1941
triploma, Annularia triploma Baker, 1934 - syn of: Annularia triploploma (Baker, 1934)
triploploma, Annularia triploploma (Baker, 1934)
triplopoma, Annularia triplopoma Baker, 1934 - syn of: Annularia triploploma (Baker, 1934)
troscheli, Eutudorops troscheli (Pfeiffer, 1864)
troscheli antoniensis, Eutudorops troscheli antoniensis (Torre & Bartsch, 1941)
troscheli azucarensis, Eutudorops troscheli azucarensis (Torre & Bartsch, 1941)
troscheli palmaritensis, Eutudorops troscheli palmaritensis (Torre & Bartsch, 1941)
truncatulum, Cyclostoma truncatulum Draparnaud, 1801 - syn of: Truncatella subcylindrica (Linnaeus, 1767)
tryoni, Choanopoma tryoni (Arango, 1879)
tryoni vinalensis, Choanopoma tryoni vinalensis (Torre & Bartsch, 1941)
tsaratananae, Cyclotopsis tsaratananae (Emberton, 2003)
tuberculata, Wrightudora tuberculata (Torre & Bartsch, 1941)
tucayum, Chondropoma tucayum Pease
tulearensis, Tropidophora tulearensis Fischer-Piette, 1949
tumidus, Pomatias tumidus Pennant, 1776 - syn of: Pomatias elegans (Müller, 1774)
turbinatum, Dioscopoma turbinatum (Godwin-Austen, 1881)
turiguanoense, Opisthosiphon turiguanoense Torre & Bartsch, 1941
turiguanoense caprinus, Opisthosiphon turiguanoense caprinus Sánchez Roig, 1949
turnerae, Chondropoma turnerae Clench, 1950
turneri, Licina aguadillensis turneri Clench
turquinensis, Troschelvindex arangiana turquinensis Sánchez Roig
turquinensis, Chondropoma erectum turquinensis Torre & Bartsch
turricula, Leonia mammillaris turricula Pallary
turritum, Chondropoma turritum Pfeiffer, 1853
umbrata, Chondrothyra atristoma umbrata Torre & Bartsch
umbricola, Parachondria umbricola (Weinland)
umbricola cayemitensis, Parachondria umbricola cayemitensis (Weinland)
uncinaria, Annularia uncinaria Arango, 1884 - syn of: Annularia uncinata (Arango, 1884)
uncinata, Annularia uncinata (Arango, 1884)
uncinata expansa, Annularia uncinata expansa Torre & Bartsch
undosa, Eutudorops undosa (Gundlach in Pfeiffer, 1863)
undosa barroi, Eutudorops undosa barroi (Torre & Bartsch, 1941)
undosa laureani, Eutudorops undosa laureani (Torre & Bartsch, 1941)
unguiculatum, Chondropoma ernesti unguiculatum Aguayo
unicarinata, Tropidophora tricarinata unicarinata Lamarck
unicolor, Cyclostoma unicolor Olivier, 1804
unilabiatum, Chondropoma unilabiatum (Gundlach in Pfeiffer, 1860)
unilabiatum dunkeri, Chondropoma unilabiatum dunkeri (Arango, 1866)
unilabiatum maisianum, Chondropoma unilabiatum maisianum Aguayo, 1953
unilabiatum obsoletum, Chondropoma unilabiatum obsoletum Torre & Bartsch, 1938
unilabiatum rubrum, Chondropoma unilabiatum rubrum Torre & Bartsch, 1938
unilabiatum unilahiatum, Chondropoma unilabiatum unilahiatum (Gundlach, 1860)
unilahiatum, Chondropoma unilabiatum unilahiatum Gundlach
uniplicata, Chondrothyra uniplicata Torre & Bartsch, 1938
uniplicata ibarrae, Chondrothyra uniplicata ibarrae Jaume, 1984
vachecolum, Rhytidopoma rollei vachecolum Bartsch
vallei, Opisthosiphon bacillum vallei Aguayo & Jaume
vallei, Chondropometes segregatum vallei Torre & Bartsch
vallorzi, Tropidophora vallorzi Fischer-Piette, Blanc & Salvat, 1969
vanattae, Chondropoma vanattae Pilsbry, 1933
vanattae verettense, Chondropoma vanattae verettense Bartsch, 1946
vandammei, Omanitopsis vandammei M. Harzhauser & Neubauer, 2015 † (FOSSIL)
vandammei, Dioscopoma vandammei Neubert, 2009
vannostrandi, Annularops vannostrandi (Arango, 1876)
varaderense, Chondropoma pictum varaderense Torre & Bartsch
variabilis, Adamsiella variabilis (Adams, 1849)
variabilis, Chondrothyretes tenebrata variabilis Torre & Bartsch
variabilis granosa, Adamsiella variabilis granosa (Adams, 1850)
varicosa, Wrightudora varicosa (Torre & Bartsch, 1941)
varonai, Diplopoma varonai (Jaume, 1984)
vaughani, Opisthosiphon vaughani Bartsch, 1946
vaughani occidentalis, Opisthosiphon vaughani occidentalis Bartsch, 1946
velazquezi, Opisthosiphon pupoides velazquezi Torre & Bartsch
venerabile, Chondropometes vignalense venerabile Torre & Bartsch
venerabile, Chondropometes venerabile Torre & Bartsch, 1938 - syn of: Chondropometes vignalense venerabile (Torre & Bartsch, 1938)
ventricosa, Cyclostoma ventricosa Hombron & Jacquinot, 1848 - syn of: Omphalotropis ventricosa (Hombron & Jacquinot, 1848)
verettense, Chondropoma vanattae verettense Bartsch
vermiculata, Kisslingia vermiculata Bartsch, 1946
vermiculata domingense, Kisslingia vermiculata domingense Bartsch, 1946
vermiculata nubilum, Kisslingia vermiculata nubilum Bartsch, 1946
vermiculata sallei, Kisslingia vermiculata sallei Bartsch, 1946
versicolor, Chondrothyretes reticulata versicolor Torre & Bartsch
verticillatum, Cyclostoma verticillatum (Morelet)
vespertinum, Chondropoma vespertinum (Morelet, 1851)
vespertinum bibijaguense, Chondropoma vespertinum bibijaguense Torre & Bartsch, 1938
vespertinum caballosense, Chondropoma vespertinum caballosense Torre & Bartsch, 1938
vespertinum colombense, Chondropoma vespertinum colombense Torre & Bartsch, 1938
vespertitum, Cyclostoma vespertitum Morelet, 1851 - syn of: Chondropoma vespertinum (Morelet, 1851)
vicentensis, Turrithyra deceptor vicentensis Torre & Bartsch
vicina, Turrithyra sinuosa vicina Torre & Bartsch
victoris, Annularisca victoris Torre & Bartsch, 1941
victoris castellanoi, Annularisca victoris castellanoi Aguayo
vigiaense, Chondrothyrium violaceum vigiaense Torre & Bartsch
vignalense, Chondropometes vignalense (Wright in Pfeiffer, 1863)
vignalense azucarellum, Chondropometes vignalense azucarellum Torre & Bartsch, 1938
vignalense azucarense, Chondropometes vignalense azucarense Torre & Bartsch, 1938
vignalense bruneocinctum, Chondropometes vignalense bruneocinctum Torre & Bartsch, 1938
vignalense caponense, Chondropometes vignalense caponense Torre & Bartsch, 1938
vignalense celadense, Chondropometes vignalense celadense Torre & Bartsch, 1938
vignalense clappi, Chondropometes vignalense clappi Torre & Bartsch, 1938
vignalense fogonense, Chondropometes vignalense fogonense Torre & Bartsch, 1938
vignalense ignicolor, Chondropometes vignalense ignicolor Torre & Bartsch, 1938
vignalense infernale, Chondropometes vignalense infernale Torre & Bartsch, 1938
vignalense jarucense, Chondropometes vignalense jarucense Torre & Bartsch, 1938
vignalense lucifer, Chondropometes vignalense lucifer Torre & Bartsch, 1938
vignalense martillense, Chondropometes vignalense martillense Torre & Bartsch, 1938
vignalense palmaritense, Chondropometes vignalense palmaritense Torre & Bartsch, 1938
vignalense piade, Chondropometes vignalense piade Torre & Bartsch, 1938
vignalense poenitente, Chondropometes vignalense poenitente Torre & Bartsch, 1938 - syn of: Chondropometes vignalense poenitentis Torre & Bartsch, 1938
vignalense poenitentis, Chondropometes vignalense poenitentis Torre & Bartsch, 1938
vignalense puertecitense, Chondropometes vignalense puertecitense Torre & Bartsch, 1938
vignalense venerabile, Chondropometes vignalense venerabile (Torre & Bartsch, 1938)
vignali, Tropidophora vignali Fischer-Piette, 1949
viguetense, Opisthosiphon berryi viguetense Torre & Bartsch
vinalensis, Choanopoma tryoni vinalensis Torre & Bartsch
violaceum, Chondrothyrium violaceum (Pfeiffer, 1858)
violaceum, Rhytidopoma violaceum Jaume & Sánchez De Fuentes, 1944
violaceum atkinsi, Chondrothyrium violaceum atkinsi Torre & Bartsch, 1938
violaceum banaoense, Chondrothyrium violaceum banaoense Torre & Bartsch, 1938
violaceum clerchi, Chondrothyrium violaceum clerchi Torre & Bartsch, 1938
violaceum doloresi, Chondrothyrium violaceum doloresi Torre & Bartsch, 1938
violaceum fomentense, Chondrothyrium violaceum fomentense Torre & Bartsch, 1938
violaceum gonzalesi, Chondrothyrium violaceum gonzalesi Torre & Bartsch, 1938
violaceum ignotum, Chondrothyrium violaceum ignotum Torre & Bartsch, 1938
violaceum jaumei, Chondrothyrium violaceum jaumei Alcalde, 1943
violaceum leteranense, Chondrothyrium violaceum leteranense Torre & Bartsch, 1938
violaceum maguasense, Chondrothyrium violaceum maguasense Torre & Bartsch, 1938
violaceum manatiense, Chondrothyrium violaceum manatiense Torre & Bartsch, 1938
violaceum montanei, Chondrothyrium violaceum montanei Torre & Bartsch, 1938
violaceum morenoi, Chondrothyrium violaceum morenoi Jaume & Sánchez De Fuentes, 1943
violaceum mortei, Chondrothyrium violaceum mortei Torre & Bartsch, 1938
violaceum purialense, Chondrothyrium violaceum purialense Sánchez Roig, 1951
violaceum rocai, Chondrothyrium violaceum rocai Torre & Bartsch, 1938
violaceum saugeti, Chondrothyrium violaceum saugeti Torre & Bartsch, 1938
violaceum serranum, Chondrothyrium violaceum serranum Torre & Bartsch, 1938
violaceum sopimpense, Chondrothyrium violaceum sopimpense Torre & Bartsch, 1938
violaceum tenue, Chondrothyrium violaceum tenue Torre & Bartsch, 1938
violaceum vigiaense, Chondrothyrium violaceum vigiaense Torre & Bartsch, 1938
virgineum, Pomatias virgineum Adams, 1850 - syn of: Annularia pisum (Adams, 1849)
virgineum, Chondropoma virgineum Aguayo, 1953
virgineum mayariense, Chondropoma virgineum mayariense Aguayo, 1953
virgo, Tropidophora virgo (Pfeiffer, 1854)
viridescens, Cyclostoma viridescens Pease, 1861 - syn of: Atropis viridescens (Pease, 1861)
vitaense, Chondropoma solidulum vitaense Torre & Bartsch
vittata, Tropidophora vittata (Sowerby, 1843)
voltzianum, Leonia voltzianum Michaud, 1831 - syn of: Leonia mammillaris (Lamarck, 1822)
volvuloides, Tropidophora semidecussata volvuloides Sowerby
vuillemini, Tropidophora vuillemini Fischer-Piette, Blanc & Salvat, 1969
waldemari, Pomatias waldemari Wagner, 1897 - syn of: Cochlostoma waldemari (Wagner, 1897)
wassauensis, Tudora aurantia wassauensis Baker
watlingense, Chondropoma watlingense Dall, 1894
watlingensis, Colonella watlingensis (Bartsch, 1946)
watlingensis henryi, Colonella watlingensis henryi (Bartsch, 1946)
weinlandi, Chondropoma swifti weinlandi Pfeiffer
welchi, Eutudorops welchi (Torre & Bartsch, 1941)
welchi, Annularisca mayariensis welchi Torre & Bartsch
wespuntensis, Tudora fossor wespuntensis Baker
westputensis, Tudora westputensis Baker, 1924
wetmorei, Abbottella moreletiana wetmorei Bartsch
wetmorei, Chondropoma wetmorei Bartsch, 1932
wilcoxi, Chondropoma wilcoxi Pilsbry & Henderson, 1912
wilhelmi, Abbottella wilhelmi (Pfeiffer, 1858)
wilkinsonii, Parachondria wilkinsonii (Adams, 1849)
williamsae, Opisthosiphon simpsoni williamsae Watters & Duffy
williamsoni, Tudora williamsoni Baker, 1923
williamsoni kugleri, Tudora williamsoni kugleri Forcart
winckworthi, Tropidophora winckworthi Fischer-Piette, 1949
woodringi, Chondropoma woodringi Bartsch, 1947
wrighti, Chondropoma wrighti (Pfeiffer, 1862)
wrighti, Chondrothyra wrighti Torre & Bartsch, 1938
wrighti, Annularisca wrighti Torre & Bartsch, 1941
wrightianum, Rhytidopoma wrightianum (Gundlach in Arango, 1881)
wrightianum cabrasense, Rhytidopoma wrightianum cabrasense Torre & Bartsch, 1941
wrightianum ottonis, Rhytidopoma wrightianum ottonis Torre & Bartsch, 1941
xanthocheila, Tropidophora xanthocheila Sowerby, 1850
xanthostoma, Colobostylus xanthostoma (Sowerby, 1843)
xanthostoma albilabre, Pomatias xanthostoma albilabre Adams, 1851 - syn of: Colobostylus xanthostoma (Sowerby, 1843)
xenicum, Chondropoma xenicum Pilsbry, 1933
xilaensis, Hendersonina hamlini xilaensis Torre & Bartsch
yallahensis, Colobostylus yallahensis (Adams, 1851)
yaquense, Parachondria yaquense Bartsch, 1946
yateracense, Tudora yateracense Pfeiffer, 1865 - syn of: Annularisca yaterasensis (Pfeiffer, 1865)
yaterasensis, Annularisca yaterasensis (Pfeiffer, 1865)
yaterasensis, Ramsdenia nobilitata yaterasensis Torre & Bartsch
yaucoi, Licina decussata yaucoi Baker
yucayum, Chondropoma yucayum (Presas in Pfeiffer, 1863)
yucayum bermudezi, Chondropoma yucayum bermudezi Torre & Sánchez De Fuentes, 1954
yumuriense, Chondropoma pictum yumuriense Torre & Bartsch
yumuriensis, Annularisca yumuriensis Torre & Bartsch, 1941
yunguensis, Annularia yunguensis (Pfeiffer)
yunquei, Chondropoma yunquei Baker, 1941
yunquensis, Annularisca yunquensis (Pfeiffer, 1860)
zajonzi, Lithidion zajonzi Neubert, 2002
zanguebarica, Tropidophora zanguebarica (Petit De La Saussaye, 1850)
zanjonensis, Bermudezia bermudezi zanjonensis Sánchez Roig
zayasi, Diplopoma zayasi (Jaume, 1984)
zonata, Tropidophora zonata Petit De La Saussaye, 1850
zonulata, Tropidophora tricarinata zonulata Sowerby
zorrillae, Chondropoma zorrillae Jaume, 1984
|