- cura, Turbonilla cura S. Nomura, 1937 - (PYRAMIDELLIDAE)
- curacaoensis, Syntomodrillia curacaoensis P.J. Fallon, 2016 - (DRILLIIDAE)
- curacaoensis, Alvania curacaoensis D. De Jong & H.E. Coomans, 1988 - (RISSOIDAE)
- curacaoensis, Terebra curacaoensis D. De Jong & H.E. Coomans, 1988 - (TEREBRIDAE)
- curaccasensis, Bulimus curaccasensis L.A. Reeve, 1849 - syn of: Beckianum beckianum (L. Pfeiffer, 1846) - (BULIMULIDAE)
- curaccasensis, Opeas curaccasensis L.A. Reeve, 1849 - syn of: Beckianum beckianum (L. Pfeiffer, 1846) - (SUBULINIDAE)
- curacoae, Roblinella curacoae (J.W. Brazier, 1871) - (CHAROPIDAE)
- curacoae, Helix curacoae J.W. Brazier, 1871 - syn of: Roblinella curacoae (J.W. Brazier, 1871) - (HELICIDAE)
- curacoana, Arene curacoana H.A. Pilsbry, 1934 - (ARENEIDAE)
- curacoana, Gastrocopta curacoana H.A. Pilsbry, 1924 - (VERTIGINIDAE)
- curacoensis, Neocomiceramus curacoensis (C.S. Weaver, 1931 †) - (INOCERAMIDAE) (FOSSIL)
- Curacoites, Genus Curacoites Aguirre-Urreta & Rawson, 2012 (AMMONOIDEA (unassigned)) (FOSSIL)
- curamalalensis, Orthalicus curamalalensis J.J. Parodíz, 1957 - (ORTHALICIDAE)
- curamichatensis, Turritella curamichatensis F. Hodson, 1926 † - (TURRITELLIDAE) (FOSSIL)
- curasoae, Bosellia curasoae Er. Marcus & Ev. Marcus, 1970 - (BOSELLIIDAE)
- curassaviensis, Tenorioconus curassaviensis (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- curasub, Douglassia curasub P.J. Fallon, 2016 - (DRILLIIDAE)
- curata, Crassatella curata G.P. Deshayes † - (CRASSATELLIDAE) (FOSSIL)
- curatus, Bathytormus curatus (G.P. Deshayes, 1857 †) - (CRASSATELLIDAE) (FOSSIL)
- curatus, Unio curatus I. Lea, 1863 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- curazaoensis, Volvarina curazaoensis J. Espinosa & J.A. Ortea, 2013 - (MARGINELLIDAE)
- curculio, Acteon curculio E. Forbes, 1846 - (ACTEONIDAE)
- curculio, Lienardia curculio (G. Nevill & H. Nevill, 1869) - (CLATHURELLIDAE)
- curdsvillense, Actinoceras curdsvillense Foerste & Teichert, 1930 † - (ACTINOCERATIDAE) (FOSSIL)
- curdsvillense, Deiroceras curdsvillense Foerste & Teichert, 1930 † - (ORMOCERATIDAE) (FOSSIL)
- curei, Hirtudiscus curei B. Hausdorf, 2003 - (ENDODONTIDAE)
- curere, Doto curere J.A. Ortea, 2001 - (DOTIDAE)
- cureti, Astarte cureti A.E.M. Cossmann, 1918 † - (ASTARTIDAE) (FOSSIL)
- cureti, Tomaszoviella cureti (A.E.M. Cossmann, 1918 †) - (CERITHIOIDEA (unassigned)) (FOSSIL)
- cureti, Chilodonta cureti (A.E.M. Cossmann, 1900 †) - (CHILODONTIDAE) (FOSSIL)
- cureti, Drillia cureti A.E.M. Cossmann, 1919 † - (DRILLIIDAE) (FOSSIL)
- cureti, Amberleya cureti A.E.M. Cossmann, 1900 † - syn of: Chilodonta cureti (A.E.M. Cossmann, 1900 †) - (EUCYCLIDAE) (FOSSIL)
- cureti, Phaneroptyxis cureti A.E.M. Cossmann, 1916 † - (ITIERIIDAE) (FOSSIL)
- cureti, Rhabdocolpus cureti A.E.M. Cossmann, 1918 † - syn of: Tomaszoviella cureti (A.E.M. Cossmann, 1918 †) - (PROCERITHIIDAE) (FOSSIL)
- cureti, Cimoliocentrum cureti (A.E.M. Cossmann, 1899 †) - (PURPURINIDAE) (FOSSIL)
- cureti, Rissoa cureti A.E.M. Cossmann, 1918 † - (RISSOIDAE) (FOSSIL)
- Curetia, Genus Curetia Cossmann, 1916 (OPISTHOBRANCHIA (unassigned)) (FOSSIL)
- curialis, Colpospira curialis C. Hedley, 1907 - (TURRITELLIDAE)
- curianianus, Drymaeus curianianus (L.A. Reeve, 1849) - (BULIMULIDAE)
- curiniancui, Adelomelon curiniancui C. Nielsen, 2003 † - (VOLUTIDAE) (FOSSIL)
- curinii, Jujubinus curinii C. Bogi & E. Campani, 2006 - (TROCHIDAE)
- Curionia, Genus Curionia Ronchetti & Allasinaz, 1965 (NEOLEPTONIDAE) (FOSSIL)
- curionii, Serpianites curionii Rieber, 1973 † - (CERATITIDA (unassigned)) (FOSSIL)
- curionii, Eoprotrachyceras curionii (Mojsisovics, 1882 †) - (TRACHYCERATIDAE) (FOSSIL)
- curionii, Periglypta curionii (G.P. Deshayes, 1857 †) - (VENERIDAE) (FOSSIL)
- curiosa, Notoplax curiosa (T. Iredale & A.F.B. Hull, 1925) - (ACANTHOCHITONIDAE)
- curiosa, Enigmonia curiosa W.H. Turton, 1932 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- curiosa, Anomia curiosa W.H. Turton, 1932 - syn of: Enigmonia aenigmatica (H.S. Holten, 1802) - (ANOMIIDAE)
- curiosa, Clisospira curiosa Billings, 1865 † - (CLISOSPIRIDAE) (FOSSIL)
- curiosa, Noumeaella curiosa J.J. Risbec, 1937 - (FACELINIDAE)
- curiosa, Crenavolva curiosa C.N. Cate, 1973 - syn of: Dentiovula azumai (C.N. Cate, 1970) - (OVULIDAE)
- curiosa, Dentiovula curiosa C.N. Cate, 1973 - syn of: Dentiovula azumai (C.N. Cate, 1970) - (OVULIDAE)
- curiosa, Palaeomutela curiosa Amalitsky, 1892 † - (PALAEOMUTELIDAE) (FOSSIL)
- curiosa, Odostomia curiosa S. Nomura, 1938 - (PYRAMIDELLIDAE)
- curiosus, Nodulus curiosus W.H. Turton, 1932 - syn of: Pelycidion africanum (P. Bartsch, 1915) - (ANABATHRIDAE)
- curiosus, Pachnodus curiosus J. Gerlach, 2003 - (CERASTUIDAE)
- curiosus, Plasiochiton curiosus Hoare, 2000 † - (CHORIPLACIDAE) (FOSSIL)
- curitybana, Mirinaba curitybana F. Lange de Morretes, 1952 - syn of: Mirinaba curytibana (F. Lange de Morretes, 1952) - (STROPHOCHEILIDAE)
- curlyjigga, Plagiothyra curlyjigga Cook, 1998 † - (PLAGIOTHYRIDAE) (FOSSIL)
- curmontensis, Ptygmatis curmontensis (De Loriol, 1872 †) - (NERINEIDAE) (FOSSIL)
- curnieri, Euptychoceras curnieri Thieuloy, 1972 † - (BOCHIANITIDAE) (FOSSIL)
- curnieri, Crioceratites curnieri Ropolo, 1991 † - (CRIOCERATITIDAE) (FOSSIL)
- curnowae, Pitar curnowae K.L. Lamprell & J.M. Healy, 1997 - (VENERIDAE)
- curralensis, Africonus curralensis (E. Rolán, 1986) - (CONIDAE)
- currani, Oxychona pyramidella currani P. Bartsch, 1916 - (BULIMULIDAE)
- currani, Neocyclotus currani (P. Bartsch & J.P.E. Morrison, 1942) - (NEOCYCLOTIDAE)
- currani, Crassispira currani J.H. McLean & L.H. Poorman, 1971 - (PSEUDOMELATOMIDAE)
- currens, Michelinoceras currens (Barrande, 1866 †) - (MICHELINOCERATIDAE) (FOSSIL)
- curretensis, Trypanostylus curretensis E.A.L. Kittl, 1894 † - (COELOSTYLINIDAE) (FOSSIL)
- curreyana, Anculosa curreyana I. Lea, 1841 - (PLEUROCERIDAE)
- Curricula, syn of: Genus Elliptio C.S. Rafinesque, 1819 (UNIONIDAE)
- currierianum, Pleurocera currierianum I. Lea, 1863 - (PLEUROCERIDAE)
- currierianus, Somatogyrus currierianus I. Lea, 1863 - (LITHOGLYPHIDAE)
- curruca, Tricornis curruca P.F. Röding, 1798 - syn of: Tricornis tricornis (J. Lightfoot, 1786) - (STROMBIDAE)
- curryi, Fusulculus curryi J.M. Pacaud & Tracey, 2000 † - (BENTHOBIIDAE) (FOSSIL)
- curryi, Metula juncea curryi L. Dolin & Renard, 1980 - (BUCCINIDAE)
- Currylimacina, Genus Currylimacina Janssen, 2003 (LIMACINIDAE) (FOSSIL)
- cursator, Malleus cursator T. Iredale, 1931 - syn of: Malleus regula (P. Forsskål in C. Niebuhr, 1775) - (MALLEIDAE)
- curta, Achatinella curta W. Newcomb, 1853 - (ACHATINELLIDAE)
- curta, Cleionychia curta Foerste, 1924 † - (AMBONYCHIIDAE) (FOSSIL)
- curta, Ampullina curta F. Traub, 1979 † - (AMPULLINIDAE) (FOSSIL)
- curta, Perissoptera curta Pchelincev, 1953 † - (APORRHAIDAE) (FOSSIL)
- curta, Omphalotropis curta A. Garrett, 1879 - (ASSIMINEIDAE)
- curta, Beloptera curta A.E.M. Cossmann, 1896 † - (BELOPTERIIDAE) (FOSSIL)
- curta, Mysorella curta (Garnier in Y.L. Picard, 1840) - (BITHYNIIDAE)
- curta, Bithynia curta Garnier in Y.L. Picard, 1840 - syn of: Mysorella curta (Garnier in Y.L. Picard, 1840) - (BITHYNIIDAE)
- curta, Mysorella costigera curta G. Nevill - (BITHYNIIDAE)
- curta, Canistrum curta (G.B. I Sowerby, 1841) - (BRADYBAENIDAE)
- curta, Cancellaria curta H. Strebel, 1908 - syn of: Paradmete curta (H. Strebel, 1908) - (CANCELLARIIDAE)
- curta, Gujocardita curta H.X. Liu, 1976 † - (CARDITIDAE) (FOSSIL)
- curta, Cardita curta R. Tate, 1886 † - (CARDITIDAE) (FOSSIL)
- curta, Abida curta A. Moquin-Tandon, 1856 - syn of: Abida cylindrica (A. Michaud, 1829) - (CHONDRINIDAE)
- curta, Eatonina curta (W.H. Dall, 1927) - (CINGULOPSIDAE)
- curta, Kotuyitheca curta Missarzhevsky, 1974 † - (CIRCOTHECIDAE) (FOSSIL)
- curta, Conotheca curta Missarzhevsky, 1980 † - (CIRCOTHECIDAE) (FOSSIL)
- curta, Stabilea costata curta (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- curta, Cochlicopa curta (S. Clessin, 1908) - (COCHLICOPIDAE)
- curta, Zetekia curta W.H. Dall, 1919 - syn of: Platycythara curta (W.H. Dall, 1919) - (COLUMBELLIDAE)
- curta, Corbula curta É.A.A. Locard, 1886 - syn of: Corbula gibba (A.G. Olivi, 1792) - (CORBULIDAE)
- curta, Creseis curta Janssen, 2012 † - (CRESEIDAE) (FOSSIL)
- curta, Cuspidaria curta J.G. Jeffreys, 1876 - syn of: Cardiomya cadiziana M. Huber, 2010 - (CUSPIDARIIDAE)
- curta, Cardiomya curta J.G. Jeffreys, 1876 - syn of: Cardiomya cadiziana M. Huber, 2010 - (CUSPIDARIIDAE)
- curta, Cylichna intermissia curta N.F. Sohl, 1964 - (CYLICHNIDAE)
- curta, Globiconcha curta W.M. Gabb, 1861 † - syn of: Tylostoma elevatum (Shumard, 1861 †) - (CYLINDROBULLINIDAE) (FOSSIL)
- curta, Luria curta É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- curta, Profischeria curta (R.W. Dunker, 1867) - (DONACIDAE)
- curta, Dreissena curta É.A.A. Locard, 1893 - syn of: Dreissena polymorpha (P.S. Pallas, 1771) - (DREISSENIDAE)
- curta, Acrilla curta A. von Koenen, 1891 † - (EPITONIIDAE) (FOSSIL)
- curta, Bathycrinicola curta (A. Warén, 1972) - (EULIMIDAE)
- curta, Facelina curta J. Alder & A. Hancock, 1843 - syn of: Facelina bostoniensis (J.P.Y. Couthouy, 1838) - (FACELINIDAE)
- curta, Gastrochaena intermedia curta C. Mayer, 1889 - (GASTROCHAENIDAE)
- curta, Glauconome curta L.A. Reeve, 1844 - (GLAUCONOMIDAE)
- curta, Atys curta (A. Adams in G.B. II Sowerby, 1850) - (HAMINOEIDAE)
- curta, Hiatella curta C. Chen, 1982 † - (HIATELLIDAE) (FOSSIL)
- curta, Hippocardia curta Hoare, 1989 † - (HIPPOCARDIIDAE) (FOSSIL)
- curta, Radomaniola curta (H.C. Küster, 1852) - (HYDROBIIDAE)
- curta, Caspiohydrobia curta (B.M. Logvinenko & Y.I. Starobogatov, 1968) - (HYDROBIIDAE)
- curta, Pyrgula curta (Naliwkin, 1914) - (HYDROBIIDAE)
- curta, Pseudamnicola curta (A.E. Reuss, 1867 †) - (HYDROBIIDAE) (FOSSIL)
- curta, Ischyrodonta curta (T.A. Conrad, 1841 †) - (ISCHYRODONTIDAE) (FOSSIL)
- curta, Erycina curta A. von Koenen † - (LASAEIDAE) (FOSSIL)
- curta, Lauria curta A. Mousson, 1872 - syn of: Lauria fanalensis R.T. Lowe, 1852 - (LAURIIDAE)
- curta, Lauria curta R.T. Lowe, 1831 - syn of: Lauria cylindracea (E.M. Da Costa, 1778) - (LAURIIDAE)
- curta, Myrtea curta † - (LUCINIDAE) (FOSSIL)
- curta, Lyonsiella curta J. Poutiers, 1984 - (LYONSIELLIDAE)
- curta, Lutraria curta L.A. Reeve, 1854 - (MACTRIDAE)
- curta, Platycythara curta (W.H. Dall, 1919) - (MANGELIIDAE)
- curta, Volvarina curta T.A. de M. Monterosato, 1884 - syn of: Volvarina mitrella (A. Risso, 1826) - (MARGINELLIDAE)
- curta, Melanopsis curta J. Gassies, 1870 - syn of: Melanopsis frustulum P.M.A. Morelet, 1857 - (MELANOPSIDAE)
- curta, Mitrolumna curta (W.H. Pease, 1868) - (MITROMORPHIDAE)
- curta, Comptella curta (R. Murdoch, 1905) - (MURICIDAE)
- curta, Coralliophila curta G.B. III Sowerby, 1894 - (MURICIDAE)
- curta, Trophon curta É.A.A. Locard, 1892 - syn of: Trophonopsis muricata (G. Montagu, 1803) - (MURICIDAE)
- curta, Lithophaga curta C.E. Lischke, 1874 - (MYTILIDAE)
- curta, Musculus curta L.C. Glenn, 1904 † - (MYTILIDAE) (FOSSIL)
- curta, Hebra curta A.A. Gould, 1850 - syn of: Hebra horrida (R.W. Dunker, 1847) - (NASSARIIDAE)
- curta, Onykia curta G.J. Pfeffer, 1884 - (ONYCHOTEUTHIDAE)
- curta, Diplothyra curta (G.B. I Sowerby, 1834) - (PHOLADIDAE)
- curta, Pholas curta G.B. I Sowerby, 1834 - syn of: Diplothyra curta (G.B. I Sowerby, 1834) - (PHOLADIDAE)
- curta, Lithasia curta I. Lea, 1868 - (PLEUROCERIDAE)
- curta, Cetomya curta (G.B. III Sowerby, 1904) - (POROMYIDAE)
- curta, Pupilla curta F. Held, 1837 - syn of: Vertigo substriata J.G. Jeffreys, 1833 - (PUPILLIDAE)
- curta, Purpurina curta Hudleston † - (PURPURINIDAE) (FOSSIL)
- curta, Turbonilla curta W.H. Dall, 1889 - (PYRAMIDELLIDAE)
- curta, Raphitoma curta A. Feneaux, 1942 - (RAPHITOMIDAE)
- curta, Gymnobela curta A.E. Verrill, 1884 - syn of: Gymnobela aquilarum (R.B. Watson, 1882) - (RAPHITOMIDAE)
- curta, Alvania curta (F. Dujardin, 1837 †) - (RISSOIDAE) (FOSSIL)
- curta, Tibia curta (G.B. II Sowerby, 1842) - (ROSTELLARIIDAE)
- curta, Spirulirostra curta R. Tate, 1894 † - (SPIRULIROSTRIDAE) (FOSSIL)
- curta, Thracia curta T.A. Conrad, 1837 - (THRACIIDAE)
- curta, Opisthotrigonia curta (Aitken, 1961) † - (TRIGONIIDAE) (FOSSIL)
- curta, Pleurotoma curta A.E. Verrill, 1884 - syn of: Gymnobela aquilarum (R.B. Watson, 1882) - (TURRIDAE)
- curta, Torrecoptis curta C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- curta, Atamarcia curta (F.W. Hutton, 1873 †) - (VENERIDAE) (FOSSIL)
- curta, Vertigo curta F. Held, 1837 - syn of: Vertigo substriata J.G. Jeffreys, 1833 - (VERTIGINIDAE)
- curta, Nannamoria gotoi curta P. Bail & A. Limpus, 2008 - (VOLUTIDAE)
- curta, Paradmete curta (H. Strebel, 1908) - (VOLUTOMITRIDAE)
- curta, Yoldiella curta A.E. Verrill & K.J. Bush, 1898 - (YOLDIIDAE)
- curta anagastica, Radomaniola curta anagastica (P. Radoman, 1973) - (HYDROBIIDAE)
- curta bermius, Radomaniola curta bermius (P.L. Reischütz, 1988) - (HYDROBIIDAE)
- curta germari, Radomaniola curta germari (G.R. von Frauenfeld, 1863) - (HYDROBIIDAE)
- curta kicavica, Radomaniola curta kicavica (P. Radoman, 1973) - (HYDROBIIDAE)
- curta mostarensis, Radomaniola curta mostarensis (P. Radoman, 1973) - (HYDROBIIDAE)
- curta narentana, Radomaniola curta narentana (P. Radoman, 1973) - (HYDROBIIDAE)
- curta pivensis, Radomaniola curta pivensis (P. Radoman, 1973) - (HYDROBIIDAE)
- curta roanense, Lithasia curta roanense I. Lea, 1864 - (PLEUROCERIDAE)
- curta scalariformis, Tibia curta scalariformis E. Romagna-Manoja, 1977 - syn of: Tibia insulaechorab scalariformis E. Romagna-Manoja, 1977 - (ROSTELLARIIDAE)
- curta subangulata, Gymnobela curta subangulata A.E. Verrill, 1884 - syn of: Gymnobela aquilarum (R.B. Watson, 1882) - (RAPHITOMIDAE)
- curtacorvus, Lymnaea curtacorvus N.D. Kruglov & Y.I. Starobogatov, 1984 - (LYMNAEIDAE)
- curtangniona, Volema curtangniona P.F. Röding, 1798 - syn of: Turbinella pyrum (C. Linnaeus, 1767) - (MELONGENIDAE)
- curtansata, Urosalpinx curtansata R. Tate, 1888 † - (MURICIDAE) (FOSSIL)
- curtansata, Tancredia curtansata (Phillips) † - (TANCREDIIDAE) (FOSSIL)
- curtansata, Thracia curtansata Morris & J. Lycett, 1855 † - (THRACIIDAE) (FOSSIL)
- curtata, Cerithiopsis curtata P. Bartsch, 1911 - (CERITHIOPSIDAE)
- curtata, Abida curtata H.A. Pilsbry, 1918 - syn of: Abida cylindrica (A. Michaud, 1829) - (CHONDRINIDAE)
- curtata, Marshallena curtata (J. Marwick, 1926 †) - (HORAICLAVIDAE) (FOSSIL)
- curtata, Eulimella curtata G.S. Coen, 1933 - syn of: Eulimella acicula (R.A. Philippi, 1836) - (PYRAMIDELLIDAE)
- curtatum, Caecum curtatum L. de Folin, 1867 - syn of: Caecum pulchellum W. Stimpson, 1851 - (CAECIDAE)
- Curticaulis, syn of: Subgenus Imerinia (Desmocaulis) H.R. Simroth, 1913 (VERONICELLIDAE)
- curticostata, Turboella curticostata Wood, 1848 † - (RISSOIDAE) (FOSSIL)
- curticostatum, Meekoceras curticostatum Smith, 1932 † - syn of: Bajarunia pilata (A. Hyatt & Smith, 1905 †) - (MEEKOCERATIDAE) (FOSSIL)
- curticostatus, Rhiphaeonautilus curticostatus Ruzhentsev & Shimanskiy, 1954 † - (RHIPHAEOCERATIDAE) (FOSSIL)
- curtidens, Leptomactra curtidens (W.H. Dall, 1898 †) - (MACTRIDAE) (FOSSIL)
- curtii, Platyla curtii A.J. Wagner, 1912 - (ACICULIDAE)
- curtilobus, Kepplerites curtilobus (Buckman, 1922 †) - (KOSMOCERATIDAE) (FOSSIL)
- curtior, Ledella curtior (B.C. Cotton, 1930) - (NUCULANIDAE)
- curtisensis, Egila curtisensis (C.F. Laseron, 1959) - (PYRAMIDELLIDAE)
- curtisi, Rissoina curtisi E.A. Smith, 1884 - (RISSOINIDAE)
- curtisi, Ellipsaria curtisi L.S. Frierson & W.I. Utterback, 1916 - syn of: Epioblasma florentina (I. Lea, 1857) - (UNIONIDAE)
- curtisiana, Engina curtisiana (E.A. Smith, 1884) - (BUCCINIDAE)
- curtisiana, Figuladra incei curtisiana (L. Pfeiffer, 1864) - (CAMAENIDAE)
- curtisiana, Gyrocochlea curtisiana (C. Hedley, 1912) - (CHAROPIDAE)
- curtisiana, Squamopleura curtisiana (E.A. Smith, 1884) - (CHITONIDAE)
- curtisiana, Etrema curtisiana C. Hedley, 1922 - (CLATHURELLIDAE)
- curtisiana, Mercuria similis curtisiana (J.P.R. Draparnaud, 1805) - (HYDROBIIDAE)
- curtisiana, Mimachlamys cloacata curtisiana T. Iredale, 1939 - (PECTINIDAE)
- curtisianus, Thersites curtisianus L. Pfeiffer, 1864 - (CAMAENIDAE)
- curtispira, Schwartziella curtispira Paulmier, 2017 - (ZEBINIDAE)
- curtissii, Strophia curtissii C.J. Maynard, 1894 - syn of: Cerion glans H.C. Küster, 1844 - (CERIONIDAE)
- curtissima, Tiberia minuscula curtissima É.A.A. Locard - (PYRAMIDELLIDAE)
- curtissima, Euonyma curtissima B. Verdcourt - (SUBULINIDAE)
- curtistoma, Pleurotoma curtistoma Bell, 1871 † - (TURRIDAE) (FOSSIL)
- Curtitoma, Genus Curtitoma P. Bartsch, 1941 (MANGELIIDAE)
- curtivaginata, Ponentina curtivaginata D.T. Holyoak & G.A. Holyoak, 2012 - (HYGROMIIDAE)
- Curtocaprina, Genus Curtocaprina Mitchell, 2013 [rudist] (ICHTHYOSARCOLITIDAE) (FOSSIL)
- curtocardinalis, Leptochondria curtocardinalis (J.W. Hall & R.P. Whitfield, 1877 †) - (LEIOPECTINIDAE) (FOSSIL)
- Curtoceras, Genus Curtoceras Ulrich & al., 1942 (TROCHOLITIDAE) (FOSSIL)
- Curtohibolites, syn of: Genus Curtohibolithes Stoyanova-Vergilova, 1963 (MESOHIBOLITHIDAE) (FOSSIL)
- Curtohibolithes, Genus Curtohibolithes Stoyanova-Vergilova, 1963 (MESOHIBOLITHIDAE) (FOSSIL)
- curtoides, Acteocina incisula curtoides J. Gardner, 1937 † - (ACTEOCINIDAE) (FOSSIL)
- curtula, Microglyphis curtula (W.H. Dall, 1890) - (RINGICULIDAE)
- curtulus, Actaeon curtulus W.H. Dall, 1890 - syn of: Microglyphis curtula (W.H. Dall, 1890) - (ACTEONIDAE)
- curtulus, Pyrunculus curtulus (W.H. Dall, 1927) - (RETUSIDAE)
- curtum, Colostracon curtum (C.E. Hamlin, 1884 †) - (ACTEONIDAE) (FOSSIL)
- curtum, Buccinum curtum É.A.A. Locard, 1886 - syn of: Cabestana cutacea (C. Linnaeus, 1767) - (BUCCINIDAE)
- curtum, Buccinum curtum T.A. Verkrüzen, 1881 - syn of: Buccinum ciliatum sericatum A. Hancock, 1846 - (BUCCINIDAE)
- curtum, Cerithium curtum G.B. Sowerby, 1855 - syn of: Cerithium euros C.É. Bayle, 1880 - (CERITHIIDAE)
- curtum, Longosoma curtum (T.A. Conrad, 1874 †) - (COCHLIOPIDAE) (FOSSIL)
- curtum, Dentalium curtum G.B. II Sowerby, 1860 - (DENTALIIDAE)
- curtum, Lunulacardium curtum J.W. Hall, 1870 † - (LUNULACARDIIDAE) (FOSSIL)
- curtum, Prunum curtum (G.B. I Sowerby, 1832) - (MARGINELLIDAE)
- curtum, Orthonema curtum B.S. Kues, 2004 † - (ORTHONEMATIDAE) (FOSSIL)
- curtum, Visitator curtum Dunbar, 1920 † - syn of: Visitator tennesseensis (Dunbar, 1920 †) - (PLATYCERATIDAE) (FOSSIL)
- curtum, Pleurobema curtum I. Lea, 1859 - (UNIONIDAE)
- curtum, Isorropodon curtum R. von Cosel & C. Salas, 2001 - (VESICOMYIDAE)
- curtus, Superstes curtus (P. Marshall, 1916 †) - (ACTEONIDAE) (FOSSIL)
- curtus, Belemnites curtus A.V.M.D. D'Orbigny, 1842 † - (BELEMNITELLIDAE) (FOSSIL)
- curtus, Placostylus curtus J.C.H. Crosse, 1894 - (BOTHRIEMBRYONTIDAE)
- curtus, Colus curtus (J.G. Jeffreys, 1867 †) - (BUCCINIDAE) (FOSSIL)
- curtus, Sipho curtus G.A.W. Thorson, 1944 - syn of: Colus sabini (J.E. Gray, 1824) - (BUCCINIDAE)
- curtus, Naesiotus curtus (P.H. Reibisch, 1892) - (BULIMULIDAE)
- curtus, Chelyconus curtus Erunal-Erentoz, 1958 † - (CONIDAE) (FOSSIL)
- curtus, Crassatella cipitis curtus Berezovsky - (CRASSATELLIDAE)
- curtus, Donax curtus G.B. II Sowerby, 1866 - syn of: Donax assimilis S.C.T. Hanley, 1845 - (DONACIDAE)
- curtus, Stilifer curtus A.E. Verrill, 1882 - syn of: Pelseneeria stimpsonii (A.E. Verrill, 1872) - (EULIMIDAE)
- curtus, Fusus curtus J.G. Jeffreys, 1867 - syn of: Pteropurpura stimpsoni (A. Adams, 1863) - (FASCIOLARIIDAE)
- curtus, Cadulus curtus R.B. Watson, 1879 - (GADILIDAE)
- curtus, Laticornus curtus Missarzhevsky & Mambetov, 1981 † - (HYOLITHIDA (unassigned)) (FOSSIL)
- curtus, Mytilus curtus T. Pennant, 1777 - syn of: Modiolus modiolus (C. Linnaeus, 1758) - (MYTILIDAE)
- curtus, Sinupharus curtus R. von Cosel, 1993 - (PHARIDAE)
- curtus, Exochorhynchus curtus Astaf'yeva-Urbaytis, 1981 † - (SANGUINOLITIDAE) (FOSSIL)
- curtus, Schizodus curtus F.B. Meek & A.H. Worthen, 1866 † - (SCHIZODIDAE) (FOSSIL)
- curtus, Solen curtus C. des Moulins, 1832 † - (SOLENIDAE) (FOSSIL)
- curtus, Solen curtus T.A. Conrad, 1848 † - syn of: Plectosolen conradi W.H. Dall, 1900 † - (SOLENIDAE) (FOSSIL)
- curtus brevicaudata, Colus curtus brevicaudata F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curtus congruens, Cadulus curtus congruens R.B. Watson, 1879 - syn of: Cadulus congruens R.B. Watson, 1879 - (GADILIDAE)
- curtus exilis, Colus curtus exilis F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curtus incurvata, Colus curtus incurvata F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curtus lata, Colus curtus lata F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curtus longicaudata, Colus curtus longicaudata F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curtus solida, Colus curtus solida F.W. Harmer † - (BUCCINIDAE) (FOSSIL)
- curumim, Pomacea curumim L.R.L. Simone, 2004 - (AMPULLARIIDAE)
- curumim, Propilidium curumim J.H. Leal & L.R.L. Simone, 1998 - (LEPETIDAE)
- curupira, Yoldiella curupira N.P. Benaim & R.S. Absalão, 2011 - (YOLDIIDAE)
- curva, Vitreolina curva (T.A. de M. Monterosato, 1874) - (EULIMIDAE)
- curva, Puncturella curva A.N. Golikov & V.V. Gulbin, 1977 - (FISSURELLIDAE)
- curva, Brodiceras curva (Buckman †) - (HAMMATOCERATIDAE) (FOSSIL)
- curva, Pinna curva J.F. Gmelin, 1791 - syn of: Pinna incurva J.F. Gmelin, 1791 - (PINNIDAE)
- curva elongata, Vitreolina curva elongata M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus - (EULIMIDAE)
- curvamen, Emarginula curvamen T. Iredale, 1925 - (FISSURELLIDAE)
- curvaplicatum, Pleuronodoceras curvaplicatum J.K. Zhao & al., 1978 † - (PLEURONODOCERATIDAE) (FOSSIL)
- curvata, Ambonychiopsis curvata (W.J. Raymond, 1905 †) - (AMBONYCHIIDAE) (FOSSIL)
- curvata, Chuvashovia curvata Doguzhaeva, 2002 † - (BACTRITIDAE) (FOSSIL)
- curvata, Cavolinia curvata J.A. Grieg, 1924 - syn of: Cavolinia inflexa (C.A. Lesueur, 1813) - (CAVOLINIIDAE)
- curvata, Clio curvata L.F.A. Souleyet, 1852 - syn of: Cavolinia inflexa (C.A. Lesueur, 1813) - (CLIIDAE)
- curvata, Eulima curvata A. Adams, 1861 - (EULIMIDAE)
- curvata, Emarginula curvata M.M. Schepman, 1908 - (FISSURELLIDAE)
- curvata, Frechiella curvata Prinz, 1904 † - syn of: Frechiella venantii (Catullo, 1846 †) - (HILDOCERATIDAE) (FOSSIL)
- curvata, Lepidozona curvata H.A. Pilsbry, 1892 - (ISCHNOCHITONIDAE)
- curvata, Deshayesiella curvata (P.P. Carpenter in W.H. Dall, 1879) - (LEPTOCHITONIDAE)
- curvata, Mathilda curvata L. de Folin, 1872 - (MATHILDIDAE)
- curvata, Myadora curvata L.A. Reeve, 1844 - syn of: Myadora oblonga L.A. Reeve, 1844 - (MYOCHAMIDAE)
- curvata, Ostrea curvata A. Risso, 1826 - syn of: Ostrea stentina B.C.M. Payraudeau, 1826 - (OSTREIDAE)
- curvata, Penitella curvata G.W. Tryon, 1865 - syn of: Penitella penita (T.A. Conrad, 1837) - (PHOLADIDAE)
- curvata, Homomya curvata P. Morris, 1845 † - syn of: Vacunella curvata (P. Morris, 1845 †) - (PHOLADOMYIDAE) (FOSSIL)
- curvata, Pinnocaris curvata Reed, 1907 † - (RIBEIRIIDAE) (FOSSIL)
- curvata, Fontannesia curvata Buckman † - (SONNINIIDAE) (FOSSIL)
- curvata, Tchuranitheca curvata A.V. Sysoev, 1968 † - (TCHURANITHECIDAE) (FOSSIL)
- curvata, Opisthotrigonia curvata Aitken, 1961 † - (TRIGONIIDAE) (FOSSIL)
- curvata, Vacunella curvata (P. Morris, 1845 †) - (VACUNELLIDAE) (FOSSIL)
- curvatisulcata, Puzosia curvatisulcata Chatwin & Withers, 1909 † - syn of: Mesopuzosia mobergi (de Grossouvre, 1894 †) - (DESMOCERATIDAE) (FOSSIL)
- curvativa, Halkieria curvativa Missarzhevsky & Mambetov, 1981 † - (HALKIERIIDAE) (FOSSIL)
- curvativus, Masculuconus curvativus S.Y. Feng & al., 2000 † - (CERATOCONIDAE) (FOSSIL)
- curvatula, Thapsia curvatula E.C. Von Martens, 1897 - (UROCYCLIDAE)
- curvatum, Actinoceras curvatum A.W. Grabau † - syn of: Cyrtonybyoceras curvatum A.W. Grabau † - (ACTINOCERATIDAE) (FOSSIL)
- curvatum, Cyrtonybyoceras curvatum A.W. Grabau † - (ARMENOCERATIDAE) (FOSSIL)
- curvatum, Leptocyrtoceras curvatum Ulrich & al., 1944 † - (BASSLEROCERATIDAE) (FOSSIL)
- curvatum, Cyrtogomphoceras curvatum Troedsson, 1929 † - (CYRTOGOMPHOCERATIDAE) (FOSSIL)
- curvatum, Allorisma curvatum P. Morris, 1845 † - syn of: Vacunella curvata (P. Morris, 1845 †) - (EDMONDIIDAE) (FOSSIL)
- curvatum, Cameroceras curvatum Ruedemann, 1906 † - (ENDOCERATIDAE) (FOSSIL)
- curvatum, Pseudosageceras curvatum Chao, 1959 † - syn of: Pseudosageceras multilobatum Noetling, 1905 † - (HEDENSTROEMIIDAE) (FOSSIL)
- curvatum, Pernoceras curvatum (E. Perna, 1914 †) - (KIRSOCERATIDAE) (FOSSIL)
- curvatum, Tumaroceras curvatum Liang, 1982 † - (PARAGASTRIOCERATIDAE) (FOSSIL)
- curvatum, Cyrtorhabdoceras curvatum Mojsisovics, 1893 † - (RHABDOCERATIDAE) (FOSSIL)
- curvatus, Atdabanithes curvatus Meshkova, 1974 † - (ATDABANITHIDAE) (FOSSIL)
- curvatus, Gonioloboceratoides curvatus Nassichuk, 1975 † - (GONIOLOBOCERATIDAE) (FOSSIL)
- curvatus, Hyphoplites curvatus (Mantell, 1822 †) - (HOPLITIDAE) (FOSSIL)
- curvatus, Mytilus curvatus R.W. Dunker, 1857 - syn of: Brachidontes mutabilis (A.A. Gould, 1861) - (MYTILIDAE)
- curvatus, Bajocisphinctes curvatus Buckman, 1927 † - (PERISPHINCTIDAE) (FOSSIL)
- curvatus, Cyrtogomphus curvatus (Flower, 1928 †) - (POTERIOCERATIDAE) (FOSSIL)
- curvatus, Qinglongites curvatus Zheng, 1981 † - (PSEUDOHALORITIDAE) (FOSSIL)
- curvatus, Sanguinolites curvatus P. Morris, 1845 † - syn of: Vacunella curvata (P. Morris, 1845 †) - (SANGUINOLITIDAE) (FOSSIL)
- curvatus, Sinoceltites curvatus J.K. Zhao & Liang, 1974 † - (TAPASHANITIDAE) (FOSSIL)
- curvatus, Turbo curvatus . Brusina, 1870 - syn of: Eulima philippii H.C. Weinkauff, 1868 - (TURBINIDAE)
- curvatus, Unio curvatus I. Lea, 1872 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- curvatus arausionensis, Hyphoplites curvatus arausionensis (Hébert & E.C. Munier-Chalmas, 1875 †) - (HOPLITIDAE) (FOSSIL)
- curvaxis, Repressaxis curvaxis (H.A. Pilsbry, 1930) - (SPIRAXIDAE)
- Curvella, Genus Curvella M.A. Chaper, 1885 (SUBULINIDAE)
- curvelliforme, Pseudopeas curvelliforme H.A. Pilsbry, 1919 - (SUBULINIDAE)
- Curvemysella, Genus Curvemysella T. Habe, 1959 (MONTACUTIDAE)
- curvensis aequistriata, Gibbula curvensis aequistriata H.F.A. von Ihering, 1907 † - syn of: Juliania aequistriata (H.F.A. von Ihering, 1907 †) - (TROCHIDAE) (FOSSIL)
- Curveulima, Genus Curveulima C.F. Laseron, 1955 (EULIMIDAE)
- Curviceras, syn of: Genus Waehneroceras Hyatt, 1889 (SCHLOTHEIMIIDAE) (FOSSIL)
- Curviceras, syn of: Genus Waehneroceras Hyatt, 1889 (SCHLOTHEIMIIDAE) (FOSSIL)
- curvicorne, Oistoceras curvicorne (Schloenbach, 1863 †) - (LIPAROCERATIDAE) (FOSSIL)
- curvicornu, Neokentroceras curvicornu Spath, 1922 † - (BRANCOCERATIDAE) (FOSSIL)
- curvicosta, Cymaclymenia curvicosta C.N. Lange, 1929 † - (CYMACLYMENIIDAE) (FOSSIL)
- curvicosta, Curvidactylites curvicosta S.S. Buckman, 1927 † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- curvicosta, Kestocenebra curvicosta (J.P.S. Grateloup, 1840 †) - (MURICIDAE) (FOSSIL)
- curvicosta, Platyclymenia curvicosta Wedekind, 1914 † - syn of: Trigonoclymenia spinosa (G.G. Münster, 1842 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- curvicosta, Juddiceras curvicosta (A. von Koenen, 1902 †) - (PROTANCYLOCERATIDAE) (FOSSIL)
- curvicosta, Melanoides curvicosta G.P. Deshayes, 1835 † - (THIARIDAE) (FOSSIL)
- curvicosta, Eopleurotoma curvicosta (J.B.P.A. Lamarck, 1804 †) - (TURRIDAE) (FOSSIL)
- curvicostae, Parthenina curvicostae Peñas & Rolán, 2017 - (PYRAMIDELLIDAE)
- curvicostata, Melanatria curvicostata Melleville, 1843 † - (PACHYCHILIDAE) (FOSSIL)
- curvicostata, Goniobasis curvicostata (L.A. Reeve, 1861) - (PLEUROCERIDAE)
- curvicostata, Terebralia curvicostata (G.P. Deshayes, 1833 †) - (POTAMIDIDAE) (FOSSIL)
- curvicostata, Chrysallida curvicostata (J. Grant-Mackie & M. Chapman-Smith, 1971 †) - (PYRAMIDELLIDAE) (FOSSIL)
- curvicostata, Chrysallida curvicostata S.V. Wood, 1842 - syn of: Parthenina indistincta (G. Montagu, 1808) - (PYRAMIDELLIDAE)
- curvicostatum, Hyperlioceras curvicostatum Buckman, 1907 † - (GRAPHOCERATIDAE) (FOSSIL)
- curvicostatus, Kutatissites curvicostatus Stoykova, 1992 † - (ANCYLOCERATIDAE) (FOSSIL)
- curvicostatus, Timorites curvicostatus Haniel, 1915 † - (CYCLOLOBIDAE) (FOSSIL)
- curvicostatus, Bellifusus curvicostatus (B. Wade, 1926 †) - (FASCIOLARIIDAE) (FOSSIL)
- curvicostatus, Metaclionites curvicostatus (Welter, 1914 †) - (STEINMANNITIDAE) (FOSSIL)
- curvicostatus crenulatus, Bellifusus curvicostatus crenulatus N.F. Sohl, 1964 † - (FASCIOLARIIDAE) (FOSSIL)
- Curvidactylites, Genus Curvidactylites Buckman, 1927 (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- curvidens, Bifidaria curvidens A.A. Gould - syn of: Vertigopsis pentodon (T. Say, 1822) - (VERTIGINIDAE)
- curvidorsata, Clymenia curvidorsata Sobolew, 1912 † - syn of: Protornoceras curvidorsata (Sobolew, 1912 †) - (CLYMENIIDAE) (FOSSIL)
- curvidorsata, Protactoclymenia curvidorsata Sobolew, 1912 † - syn of: Protornoceras curvidorsata (Sobolew, 1912 †) - (CYRTOCLYMENIIDAE) (FOSSIL)
- curvidorsata, Protornoceras curvidorsata (Sobolew, 1912 †) - (KIRSOCERATIDAE) (FOSSIL)
- curviductus, Viator curviductus E.H. Vokes, 1975 † - (MURICIDAE) (FOSSIL)
- curvifolius, Boucardicus curvifolius K.C. Emberton & T.A. Pearce, 1999 - (CYCLOPHORIDAE)
- curvilabre, Opisthocoelicum excurrens curvilabre C.G. Aguayo & M.L. Jaume, 1954 - (POMATIIDAE)
- curvilabris, Varicella curvilabris (L. Pfeiffer, 1846) - (OLEACINIDAE)
- curvilenata, Kaibabella curvilenata Chronic, 1952 † - (SCHIZODIDAE) (FOSSIL)
- curvilineata, Aturia curvilineata Miller & Thompson, 1937 † - (ATURIIDAE) (FOSSIL)
- curvilineata, Akritogyra curvilineata A. Warén, 1992 - (SEGUENZIOIDEA (unassigned))
- curvilineata, Oxymeris curvilineata (W.H. Dall, 1895 †) - (TEREBRIDAE) (FOSSIL)
- curvilineatum, Epitonium curvilineatum (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- curvilineatum, Isorthoceras curvilineatum Kröger, 2013 † - (PROTEOCERATIDAE) (FOSSIL)
- curvilineatus, Bellerophon curvilineatus T.A. Conrad, 1842 † - syn of: Tropidodiscus curvilineatus (T.A. Conrad, 1842 †) - (BELLEROPHONTIDAE) (FOSSIL)
- curvilineatus, Tropidodiscus curvilineatus (T.A. Conrad, 1842 †) - (TROPIDODISCIDAE) (FOSSIL)
- curvilirata, Oxymeris curvilirata (T.A. Conrad, 1843 †) - (TEREBRIDAE) (FOSSIL)
- curviliratum, Vexillum curviliratum (G.B. III Sowerby, 1874) - (COSTELLARIIDAE)
- curviliratum adornata, Vexillum curviliratum adornata (J.R. le B. Tomlin, 1920) - (COSTELLARIIDAE)
- curviliratus, Piestochilus curviliratus (T.A. Conrad, 1858 †) - (FASCIOLARIIDAE) (FOSSIL)
- curviplicata, Comitas curviplicata A.V. Sysoev, 1996 - (PSEUDOMELATOMIDAE)
- curviradiata, Lucina curviradiata P. Nyst, 1845 - syn of: Digitaria digitaria (C. Linnaeus, 1758) - (LUCINIDAE)
- Curvirimula, Genus Curvirimula Weir, 1960 (NAIADITIDAE) (FOSSIL)
- curviroster, Myoforceps curviroster J.S. Schröter, 1787 - syn of: Lithophaga aristata L.W. Dillwyn, 1817 - (MYTILIDAE)
- curviroster, Mytilus curviroster J.S. Schröter, 1787 - syn of: Lithophaga aristata L.W. Dillwyn, 1817 - (MYTILIDAE)
- curvirostra, Cerithium curvirostra G. Perry, 1811 - syn of: Cerithium nodulosum J.G. Bruguière, 1792 - (CERITHIIDAE)
- curvirostra, Tibia curvirostra J.B.P.A. Lamarck, 1816 - syn of: Tibia insulaechorab P.F. Röding, 1798 - (ROSTELLARIIDAE)
- curvirostrata, Sulcogladius collegnoi curvirostrata F. Sacco, 1893 † - (ROSTELLARIIDAE) (FOSSIL)
- curvirostratus, Laevityphis curvirostratus (T.A. Conrad, 1848 †) - (MURICIDAE) (FOSSIL)
- curvirostratus, Mytilus curvirostratus E.M. Da Costa, 1778 - syn of: Modiolus modiolus (C. Linnaeus, 1758) - (MYTILIDAE)
- curvirostris, Pronoella curvirostris L.R. Cox, 1947 † - (ARCTICIDAE) (FOSSIL)
- curvirostris, Opis curvirostris Moore † - (ASTARTIDAE) (FOSSIL)
- curvirostris, Euthria cornea curvirostris (J.P.S. Grateloup, 1848 †) - (BUCCINIDAE) (FOSSIL)
- curvirostris, Zemitrella laevigata curvirostris A.W.B. Powell, 1937 - (COLUMBELLIDAE)
- curvirostris, Dreissena curvirostris A.E.M. Cossmann, 1887 † - (DREISSENIDAE) (FOSSIL)
- curvirostris, Fasciolaria curvirostris (W. Wood, 1828) - (FASCIOLARIIDAE)
- curvirostris, Emarginula curvirostris G.P. Deshayes, 1832 - syn of: Emarginula rosea Bell, 1824 - (FISSURELLIDAE)
- curvirostris, Limopsis curvirostris A.E.M. Cossmann, 1882 † - (LIMOPSIDAE) (FOSSIL)
- curvirostris, Murex curvirostris W. Wood, 1828 - syn of: Fasciolaria curvirostris (W. Wood, 1828) - (MURICIDAE)
- curvirostris, Trinacria curvirostris A.E.M. Cossmann, 1882 † - (NOETIIDAE) (FOSSIL)
- curvirostris, Tibia curvirostris J.B.P.A. Lamarck, 1816 - syn of: Tibia insulaechorab P.F. Röding, 1798 - (ROSTELLARIIDAE)
- Curvirostrum, Genus Curvirostrum Buckman, 1882 (ARCIDA (unassigned)) (FOSSIL)
- curvirostrus, Modiolus curvirostrus E.M. Da Costa, 1778 - syn of: Modiolus modiolus (C. Linnaeus, 1758) - (MYTILIDAE)
- curviseptatum, Muriceras curviseptatum Flower, 1964 † - (ELLESMEROCERATIDAE) (FOSSIL)
- curviseptatum, Montyoceras curviseptatum Flower, 1941 † - (HEBETOCERATIDAE) (FOSSIL)
- curviseptatum, Mesnaquaceras curviseptatum Flower, 1955 † - (PROTEOCERATIDAE) (FOSSIL)
- curvisetosa, Leptoplax curvisetosa (E.H.J. Leloup, 1960) - (ACANTHOCHITONIDAE)
- curvispina, Staffites curvispina C.L.F. von Sandberger, 1851 † - (CHEILOCERATIDAE) (FOSSIL)
- curvispina afrispina, Staffites curvispina afrispina Becker † - (CHEILOCERATIDAE) (FOSSIL)
- curvispinum, Maeneceras curvispinum Sobolew, 1914 † - (SPORADOCERATIDAE) (FOSSIL)
- curvistriata, Worthenia curvistriata E.F.R.K. Koken & J. Perner, 1925 † - (LOPHOSPIRIDAE) (FOSSIL)
- curvistriata, Murchisonella curvistriata A. Peñas & E. Rolán, 2013 - (MURCHISONELLIDAE)
- curvivarians, Chlamys curvivarians Dietrich, 1933 † - (PECTINIDAE) (FOSSIL)
- curvoplicatus, Cibolites curvoplicatus J.K. Zhao & Zheng, 1977 † - (PARACELTITIDAE) (FOSSIL)
- curvoplicatus, Tapashanites curvoplicatus J.K. Zhao & al., 1978 † - (TAPASHANITIDAE) (FOSSIL)
- Curvostrea, Genus Curvostrea Vialov, 1936 (OSTREIDAE) (FOSSIL)
- curvotracheatum, Plagioglypta curvotracheatum H.P. Plate, 1908 - syn of: Calliodentalium semitracheatum (M. Boissevain, 1906) - (DENTALIIDAE)
- curvotracheatum, Laevidentalium curvotracheatum (H.P. Plate, 1908) - (LAEVIDENTALIIDAE)
- curvula, Simobelus curvula Saks & Nalnyaeva, 1966 † - (BELEMNITIDA (unassigned)) (FOSSIL)
- Curvula, Genus Curvula Rafinesque, 1818 (PINNIDAE) (FOSSIL)
- curvus, Clypeosectus curvus McLean, 1989 - (LEPETODRILIDAE)
- curvus, Cyrtospira ventricosus curvus (Lindström, 1884 †) - (SUBULITIDAE) (FOSSIL)
- curytibana, Mirinaba curytibana (F. Lange de Morretes, 1952) - (STROPHOCHEILIDAE)
- cushingi, Cyclonema cushingi Ruedemann, 1912 † - (PLATYCERATIDAE) (FOSSIL)
- cushingi, Catoraphiceras cushingi Ulrich & al., 1944 † - (PROTOCYCLOCERATIDAE) (FOSSIL)
- cushmani, Chlamys cushmani Kellum, 1926 † - (PECTINIDAE) (FOSSIL)
- cusmichiana, Emarginula cusmichiana . Brusina, 1866 - syn of: Emarginula huzardii B.C.M. Payraudeau, 1826 - (FISSURELLIDAE)
- Cusmicia, syn of: Genus Clausilia J.P.R. Draparnaud, 1805 (CLAUSILIIDAE)
- Cusmischia, syn of: Genus Clausilia J.P.R. Draparnaud, 1805 (CLAUSILIIDAE)
- Cuspeulima, syn of: Genus Eulima A. Risso, 1826 (EULIMIDAE)
- Cuspicorbula, Genus Cuspicorbula Olsson, 1928 (CORBULIDAE) (FOSSIL)
- Cuspidaria, Genus Cuspidaria G.D. Nardo, 1840 (CUSPIDARIIDAE)
- cuspidariaeformis, Leptomya cuspidariaeformis T. Habe, 1952 - (SEMELIDAE)
- CUSPIDARIIDAE Dall, 1886 - Family (BIVALVIA-HETERODONTA-EUHETERODONTA-ANOMALODESMATA)
- cuspidarioides, Enixotrophon cuspidarioides (A.W.B. Powell, 1951) - (MURICIDAE)
- cuspidata, Clausilia cruciata cuspidata F. Held, 1836 - (CLAUSILIIDAE)
- cuspidata, Clio cuspidata (L.A.G. d'A. Bosc, 1802) - (CLIIDAE)
- cuspidata, Anachis cuspidata (F.P. Marrat, 1877) - (COLUMBELLIDAE)
- cuspidata, Mitrella cuspidata M. Lussi, 2009 - (COLUMBELLIDAE)
- cuspidata, Cuspidaria cuspidata (A.G. Olivi, 1792) - (CUSPIDARIIDAE)
- cuspidata, Neaera cuspidata R.B. Hinds, 1843 - syn of: Cuspidaria cuspidata (A.G. Olivi, 1792) - (CUSPIDARIIDAE)
- cuspidata, Craspedotropis cuspidata (W.H. Benson, 1851) - (CYCLOPHORIDAE)
- cuspidata, Cylindroteuthis cuspidata Sachs & Nalnjaeva, 1964 † - (CYLINDROTEUTHIDIDAE) (FOSSIL)
- cuspidata, Arinia cuspidata O.F. von Möllendorff, 1894 - (DIPLOMMATINIDAE)
- cuspidata, Doto cuspidata J. Alder & A. Hancock, 1862 - (DOTIDAE)
- cuspidata, Melanella cuspidata (C.B. Adams, 1854) - (EULIMIDAE)
- cuspidata, Purpura cuspidata A. Adams & L.A. Reeve, 1848 - syn of: Reishia bitubercularis (J.B.P.A. Lamarck, 1822) - (MURICIDAE)
- cuspidata, Natica cuspidata R.J.L. Guppy, 1910 † - (NATICIDAE) (FOSSIL)
- cuspidata, Nuculana cuspidata S.C.T. Hanley, 1860 - (NUCULANIDAE)
- cuspidata, Leda cuspidata A.A. Gould, 1861 - syn of: Nuculana mauritiana (G.B. I Sowerby, 1833) - (NUCULANIDAE)
- cuspidata, Odostomia cuspidata A. Garrett, 1873 - (PYRAMIDELLIDAE)
- cuspidata, Pleurotomella cuspidata (Chapple, 1934 †) - (RAPHITOMIDAE) (FOSSIL)
- cuspidata, Malykanotheca cuspidata Meshkova, 1974 † - (SPINULITHECIDAE) (FOSSIL)
- cuspidata, Gulella cuspidata B. Verdcourt - (STREPTAXIDAE)
- cuspidata, Mygallia cuspidata (J.J.F. Whiteaves, 1884 †) - (TANCREDIIDAE) (FOSSIL)
- cuspidata, Tellina cuspidata A.G. Olivi, 1792 - syn of: Cuspidaria cuspidata (A.G. Olivi, 1792) - (TELLINIDAE)
- cuspidata, Hastula cuspidata (R.B. Hinds, 1844) - (TEREBRIDAE)
- cuspidata, Lanceolaria oxyrhyncha cuspidata J.T. Kuroda - (UNIONIDAE)
- cuspidata cinerea, Neaera cuspidata cinerea J.G. Jeffreys, 1865 - syn of: Cuspidaria cuspidata (A.G. Olivi, 1792) - (CUSPIDARIIDAE)
- cuspidata curta, Neaera cuspidata curta J.G. Jeffreys, 1865 - syn of: Cuspidaria cuspidata (A.G. Olivi, 1792) - (CUSPIDARIIDAE)
- cuspidatum, Caecum cuspidatum G.W. Chaster, 1896 - (CAECIDAE)
- cuspidatum, Cerion mumia cuspidatum C.G. Aguayo & M.I. Sánchez Roig, 1953 - (CERIONIDAE)
- cuspidatum, Macroschisma cuspidatum (A. Adams, 1851) - (FISSURELLIDAE)
- cuspidatum, Emarginula cuspidatum A. Adams, 1851 - syn of: Macroschisma cuspidatum (A. Adams, 1851) - (FISSURELLIDAE)
- cuspidatum, Phos cuspidatum Martin, 1879 † - (NASSARIIDAE) (FOSSIL)
- cuspidatum, Chevroderma cuspidatum D. Ivanov & A.H. Scheltema, 2008 - (PROCHAETODERMATIDAE)
- cuspidatum, Gyrineum cuspidatum (L.A. Reeve, 1844) - (RANELLIDAE)
- cuspidatus, Bostryx cuspidatus P.M.A. Morelet, 1863 - (BULIMULIDAE)
- cuspidatus, Staffites cuspidatus E. Perna, 1914 † - (CHEILOCERATIDAE) (FOSSIL)
- cuspidatus, Conus cuspidatus R. Tate, 1890 † - (CONIDAE) (FOSSIL)
- cuspidatus, Polyschides cuspidatus (M. Nicklés, 1979) - (GADILIDAE)
- cuspidatus, Murexsul cuspidatus (G.B. II Sowerby, 1879) - (MURICIDAE)
- cuspidatus, Teudopsis cuspidatus (Simpson) † - (TEUDOPSIDAE) (FOSSIL)
- cuspidens, Mirinaba cuspidens (F. Lange de Morretes, 1952) - (STROPHOCHEILIDAE)
- cuspidiani, Sandlingites cuspidiani Diener, 1923 † - syn of: Idaoceras idae (Mojsisovics, 1893 †) - (SANDLINGITIDAE) (FOSSIL)
- cuspidifera, Latiaxis cuspidifera W.H. Dall, 1924 - syn of: Babelomurex couturieri (F.P. Jousseaume, 1898) - (MURICIDAE)
- cuspidiferus, Murex cuspidiferus W.H. Dall, 1924 - syn of: Babelomurex couturieri (F.P. Jousseaume, 1898) - (MURICIDAE)
- cuspidiformis, Clathropsis cuspidiformis Cecalupo & Perugia, 2017 - (CERITHIOPSIDAE)
- cuspidis, Neptunea cuspidis K. Fraussen & Y. Terryn, 2007 - (BUCCINIDAE)
- cuspidum, Tarrantoceras cuspidum L.W. Stephenson, 1953 † - (ACANTHOCERATIDAE) (FOSSIL)
- cuspis, Guraleus cuspis (G.B. III Sowerby, 1896) - (MANGELIIDAE)
- cuspis, Cuspivolva cuspis (C.N. Cate, 1973) - (OVULIDAE)
- cuspis, Tellina cuspis S.C.T. Hanley, 1844 - (TELLINIDAE)
- cuspis connectens, Guraleus cuspis connectens (G.B. III Sowerby, 1897) - (MANGELIIDAE)
- Cuspiteuthis, Genus Cuspiteuthis Abel , 1916 (MEGATEUTHIDIDAE) (FOSSIL)
- Cuspivolva, Genus Cuspivolva J. Cate, 1973 (OVULIDAE)
- cussetensis, Euomphalia cussetensis J.R. Bourguignat in É.A.A. Locard, 1882 - syn of: Euomphalia strigella (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- Cussetostrea, Genus Cussetostrea Chiplonkar & Badve, 1979 (PTERIIDA (unassigned)) (FOSSIL)
- cussottii, Nassarius cussottii L. Bozzetti, 2006 - syn of: Nassarius irus (E.C. Von Martens, 1880) - (NASSARIIDAE)
- custepecana, Semiconchula custepecana E. Naranjo-Garcia, O.J. Polaco & T.A. Pearce, 2000 - (XANTHONYCHIDAE)
- custi, Juvavites custi McLearn, 1940 † - syn of: Malayites bococki McLearn, 1937 † - (JUVAVITIDAE) (FOSSIL)
- custi, Thisbites custi McLearn, 1940 † - (THISBITIDAE) (FOSSIL)
- Custiphorus, syn of: Genus Calliopaea D'Orbigny, 1837 (LIMAPONTIIDAE)
- custodiens, Proneomenia custodiens C. Todt & K.M. Kocot, 2014 - (PRONEOMENIIDAE)
- custodiensis, Amalda custodiensis J.M. Pacaud, D. Merle & Pons, 2013 † - (ANCILLARIIDAE) (FOSSIL)
- custos, Cerithium custos C.É. Bayle, 1880 - syn of: Cerithium balteatum R.A. Philippi, 1848 - (CERITHIIDAE)
- cutacea, Cabestana cutacea (C. Linnaeus, 1767) - (RANELLIDAE)
- cutacea africana, Cabestana cutacea africana A. Adams, 1855 - syn of: Cabestana africana (A. Adams, 1855) - (RANELLIDAE)
- cutacea curta, Cabestana cutacea curta M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 - syn of: Cabestana cutacea (C. Linnaeus, 1767) - (RANELLIDAE)
- cutacea dolaria, Cabestana cutacea dolaria (C. Linnaeus, 1767) - (RANELLIDAE)
- cutaceum, Cymatium cutaceum J.B.P.A. Lamarck, 1816 - syn of: Linatella caudata (J.F. Gmelin, 1791) - (RANELLIDAE)
- cutaceus, Fusus cutaceus J.B.P.A. Lamarck, 1816 - syn of: Linatella caudata (J.F. Gmelin, 1791) - (FASCIOLARIIDAE)
- cutaceus, Murex cutaceus C. Linnaeus, 1767 - syn of: Cabestana cutacea (C. Linnaeus, 1767) - (MURICIDAE)
- cutaceus major, Cabestana cutaceus major P.M. Pallary, 1920 - syn of: Cabestana cutacea (C. Linnaeus, 1767) - (RANELLIDAE)
- Cutchisphinctes, Genus Cutchisphinctes Spath, 1931 (AMMONOIDEA (unassigned)) (FOSSIL)
- Cuthona, Genus Cuthona J. Alder & A. Hancock, 1855 (FIONIDAE)
- Cuthonella, Genus Cuthonella Bergh, 1884 (FIONIDAE)
- CUTHONIDAE - syn of Family: FIONIDAE
- cuticula, Lampadia cuticula (R.J. Shuttleworth, 1852) - (HELICIDAE)
- cuticula, Guerrina cuticula (R.J. Shuttleworth, 1852) - (VITRINIDAE)
- cuticulata, Cima cuticulata A. Warén, 1993 - (CIMIDAE)
- cuticulifera, Bulla cuticulifera E.A. Smith, 1872 - syn of: Liloa brevis (J.R.C. Quoy & J.P. Gaimard, 1833) - (BULLIDAE)
- cuticulifera, Haminoea cuticulifera E.A. Smith, 1872 - syn of: Liloa brevis (J.R.C. Quoy & J.P. Gaimard, 1833) - (HAMINOEIDAE)
- cuticulus, Drymaeus cuticulus L. Pfeiffer, 1855 - (BULIMULIDAE)
- cutisanguina, Conus cutisanguina P.F. Röding, 1798 - syn of: Chelyconus ermineus (I. von Born, 1778) - (CONIDAE)
- cutisculptus, Naesiotus cutisculptus C.M.F. Ancey, 1901 - (BULIMULIDAE)
- cutisculptus, Sicradiscus cutisculptus (O.F. von Möllendorff, 1882) - (PLECTOPYLIDAE)
- cutleriana, Dikoleps cutleriana (W. Clark, 1849) - (SKENEIDAE)
- cuttacutta, Torresitrachia cuttacutta R.C. Willan, F. Köhler, V. Kessner & M.F. Braby, 2009 - (CAMAENIDAE)
- cuttati, Theba cuttati J.R. Bourguignat, 1889 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- cutteri, Everettia cutteri (C.B. Adams, 1870) - (DYAKIIDAE)
- cuveriana, Tropidophora cuveriana S.A.A. Petit De La Saussaye, 1841 - syn of: Tropidophora cuvieriana (S.A.A. Petit De La Saussaye, 1841) - (POMATIIDAE)
- cuveriana, Vanikoro cuveriana C.A. Récluz, 1844 - syn of: Nilsia cuvieriana (H.H. Suter, 1908) - (VANIKORIDAE)
- cuvierana, Hemiglypta cuvierana (H.C. Lea, 1893) - (HELICARIONIDAE)
- cuvierensis, Terefundus cuvierensis (M.K. Mestayer, 1919) - (MURICIDAE)
- cuvierensis, Murexsul cuvierensis H.J. Finlay, 1927 - syn of: Murexsul octogonus (J.R.C. Quoy & J.P. Gaimard, 1833) - (MURICIDAE)
- cuvierensis, Leucosyrinx cuvierensis M.K. Mestayer, 1919 - syn of: Terefundus cuvierensis (M.K. Mestayer, 1919) - (PSEUDOMELATOMIDAE)
- cuvieri, Aeolidia cuvieri J.B.P.A. Lamarck, 1819 - syn of: Aeolidia papillosa (C. Linnaeus, 1761) - (AEOLIDIIDAE)
- cuvieri, Eolis cuvieri G. Johnston - syn of: Favorinus branchialis (J. Rathke, 1806) - (AEOLIDIIDAE)
- cuvieri, Allocrioceras cuvieri (Schluter, 1872 †) - (ANISOCERATIDAE) (FOSSIL)
- cuvieri, Dolabrifera cuvieri H. Adams & A. Adams, 1854 - syn of: Dolabrifera dolabrifera (P.C.A.S.L. Rang, 1828) - (APLYSIIDAE)
- cuvieri, Notarchus cuvieri S. Delle Chiaje, 1841 - syn of: Notarchus punctatus R.A. Philippi, 1836 - (APLYSIIDAE)
- cuvieri, Aplysia cuvieri S. Delle Chiaje, 1824 - syn of: Aplysia punctata (G.L.C.F.D. Cuvier, 1803) - (APLYSIIDAE)
- cuvieri, Armina cuvieri J.F. Meckel, 1823 - syn of: Armina tigrina C.S. Rafinesque, 1814 - (ARMINIDAE)
- cuvieri, Cardita cuvieri W.J. Broderip, 1832 - syn of: Cardites crassicostatus (G.B. I Sowerby, 1825) - (CARDITIDAE)
- cuvieri, Cardites cuvieri W.J. Broderip, 1832 - syn of: Cardites crassicostatus (G.B. I Sowerby, 1825) - (CARDITIDAE)
- cuvieri, Serrulina cuvieri (Delafond & Depéret, 1893) † - (CLAUSILIIDAE) (FOSSIL)
- cuvieri, Gastridium cuvieri (J.C.H. Crosse, 1858) - (CONIDAE)
- cuvieri, Fiona cuvieri S. Delle Chiaje, 1841 - syn of: Fiona pinnata (J.F. von Eschscholtz, 1831) - (FIONIDAE)
- cuvieri, Emarginula cuvieri J.V. Audouin, 1826 - (FISSURELLIDAE)
- cuvieri, Scintilla cuvieri G.P. Deshayes, 1856 - (GALEOMMATIDAE)
- cuvieri, Helicarion cuvieri A.E.J. Férussac, 1821 - (HELICARIONIDAE)
- cuvieri, Inoceramus cuvieri Sowerby, 1814 † - (INOCERAMIDAE) (FOSSIL)
- cuvieri, Mactra cuvieri G.P. Deshayes, 1854 - syn of: Mactra cumingii L.A. Reeve, 1854 - (MACTRIDAE)
- cuvieri, Bullata cuvieri G.P. Deshayes, 1853 - syn of: Bullata bullata (I. von Born, 1778) - (MARGINELLIDAE)
- cuvieri, Marginella cuvieri G.P. Deshayes, 1853 - syn of: Bullata bullata (I. von Born, 1778) - (MARGINELLIDAE)
- cuvieri, Leptoconchus cuvieri G.P. Deshayes, 1863 - syn of: Magilus antiquus P.D. Montfort, 1810 - (MURICIDAE)
- cuvieri, Octopus cuvieri D'Orbigny, 1826 - syn of: Callistoctopus lechenaultii (A.V.M.D. D'Orbigny, 1826) - (OCTOPODIDAE)
- cuvieri, Orthoceras cuvieri Barrande, 1868 † - (ORTHOCERATIDAE) (FOSSIL)
- cuvieri, Jponsia cuvieri (G.P. Deshayes, 1825 †) - (PACHYCHILIDAE) (FOSSIL)
- cuvieri, Melanatria cuvieri G.P. Deshayes, 1825 † - syn of: Jponsia cuvieri (G.P. Deshayes, 1825 †) - (PACHYCHILIDAE) (FOSSIL)
- cuvieri, Kaloplocamus cuvieri (Tyzenhaus, 1846) - (POLYCERIDAE)
- cuvieri, Rostellaria cuvieri Lea, 1833 † - syn of: Ectinochilus gaudichaudi (A.V.M.D. D'Orbigny, 1842 †) - (ROSTELLARIIDAE) (FOSSIL)
- cuvieri, Succinea cuvieri (J.F. Gmelin, 1791) - (SUCCINEIDAE)
- cuvieri pulcherrima, Nassa cuvieri pulcherrima M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- cuvieri tenuicosta, Nassa cuvieri tenuicosta M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- cuvieri turgida, Nassa cuvieri turgida M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- cuvieri varicosa, Nassa cuvieri varicosa M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1882 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- Cuvieria, syn of: Genus Cuvierina J.E.V. Boas, 1886 (CUVIERINIDAE)
- cuvieriana, Crosseola cuvieriana (M.K. Mestayer, 1919) - (CROSSEOLIDAE)
- cuvieriana, Fiona cuvieriana S. Delle Chiaje, 1841 - syn of: Fiona pinnata (J.F. von Eschscholtz, 1831) - (FIONIDAE)
- cuvieriana, Tropidophora cuvieriana (S.A.A. Petit De La Saussaye, 1841) - (POMATIIDAE)
- cuvieriana, Nilsia cuvieriana (H.H. Suter, 1908) - (VANIKORIDAE)
- cuvieriana, Vanikoro cuvieriana (C.A. Récluz, 1844) - (VANIKORIDAE)
- cuvierianus, Penion cuvierianus (A.W.B. Powell, 1927) - (BUCCINIDAE)
- cuvierianus, Sigaretus cuvierianus C.A. Récluz, 1844 - syn of: Nilsia cuvieriana (H.H. Suter, 1908) - (NATICIDAE)
- cuvierianus, Clithon cuvierianus C.A. Récluz, 1841 - (NERITIDAE)
- cuvierianus, Unio cuvierianus I. Lea, 1852 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- cuvierianus foliosus, Clithon cuvierianus foliosus (G.B. II Sowerby, 1849) - (NERITIDAE)
- cuvierianus jeakingsi, Penion cuvierianus jeakingsi (A.W.B. Powell, 1947) - (BUCCINIDAE)
- cuvieriensis, Microvoluta cuvieriensis H.J. Finlay, 1930 - syn of: Microvoluta marginata (F.W. Hutton, 1885) - (VOLUTOMITRIDAE)
- cuvierii, Armina cuvierii (A.V.M.D. D'Orbigny, 1837) - (ARMINIDAE)
- cuvierii, Buccinum cuvierii B.C.M. Payraudeau, 1826 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (BUCCINIDAE) (FOSSIL)
- cuvierii, Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- cuvierii, Nassa cuvierii B.C.M. Payraudeau, 1826 † - syn of: Tritia cuvierii (B.C.M. Payraudeau, 1826 †) - (NASSARIIDAE) (FOSSIL)
- cuvierii, Pterotrachea cuvierii L.K.A. von Chamisso & C.W. Eysenhardt, 1821 - syn of: Pterotrachea hippocampus R.A. Philippi, 1836 - (PTEROTRACHEIDAE)
- CUVIERIIDAE - syn of Family: CAVOLINIIDAE
- Cuvierina, Genus Cuvierina J.E.V. Boas, 1886 (CUVIERINIDAE)
- CUVIERINIDAE Van der Spoel, 1967 - Family (GASTROPODA-HETEROBRANCHIA-OPISTHOBRANCHIA-THECOSOMATA)
- cuvirostris, Fusus cuvirostris Wood, 1828 † - (FASCIOLARIIDAE) (FOSSIL)
- cuyama, Helminthoglypta cuyama G.D. Hanna & A.G. Smith, 1937 - (HELMINTHOGLYPTIDAE)
- cuyamacensis, Rothelix cuyamacensis (H.A. Pilsbry, 1895) - (HELMINTHOGLYPTIDAE)
- cuyana, Chilina cuyana D.E. Gutiérrez Gregoric, Ciocco & A. Rumi, 2014 - (CHILINIDAE)
- cuyana, Modiolopsis cuyana P. Sánchez, 1999 † - (MODIOMORPHIDAE) (FOSSIL)
- Cuyaniceras, Genus Cuyaniceras Leanza, 1945 (AMMONOIDEA (unassigned)) (FOSSIL)
- cuyanus, Bostryx cuyanus L. Pfeiffer, 1867 - (BULIMULIDAE)
- cuyleri, Shumardites cuyleri Plummer & P.H. Scott, 1937 † - (SHUMARDITIDAE) (FOSSIL)
- cuyoensis, Cochlostyla cuyoensis L. Pfeiffer - (BRADYBAENIDAE)
- cuyoensis, Conus vidua cuyoensis F.Jr. Lorenz & J.P. Barbier, 2012 - (CONIDAE)
- cuyoensis contracta, Cochlostyla cuyoensis contracta W. Kobelt, 1911 - (BRADYBAENIDAE)
- cuyoensis subpallida, Cochlostyla cuyoensis subpallida P. Bartsch, 1932 - (BRADYBAENIDAE)
- Cuyopsis, Genus Cuyopsis Sanchez, 1999 (PRAENUCULIDAE) (FOSSIL)
- cuyosae, Mitra cuyosae G.T. Poppe, 2008 - (MITRIDAE)
- cuyunchensis, Helcionella cuyunchensis Rusconi, 1952 † - syn of: Acevina cuyunchensis (Rusconi, 1952 †) - (HELCIONELLIDAE) (FOSSIL)
- cuyunchensis, Acevina cuyunchensis (Rusconi, 1952 †) - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- cuzcana, Happia cuzcana (R.A. Philippi, 1869) - (SCOLODONTIDAE)
- cuzcoensis, Vermiculatus cuzcoensis (W.K. Weyrauch, 1967) - (BULIMULIDAE)
- cuzcoensis, Drymaeus cuzcoensis (L.A. Reeve, 1849) - (BULIMULIDAE)
- cuzcoensis, Heleobia cuzcoensis (H.A. Pilsbry, 1911) - (COCHLIOPIDAE)
- cuzcoensis, Chondrothyrella cuzcoensis C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- cuzcoensis, Macroceramus cuzcoensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- cuzcoensis, Cochlodinella variegata cuzcoensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- cuzcoensis caroli, Chondrothyrella cuzcoensis caroli C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- cuzcoensis carolis, Chondrothyrella cuzcoensis carolis C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- cuzcoensis marasensis, Vermiculatus cuzcoensis marasensis (W.K. Weyrauch, 1967) - (BULIMULIDAE)
- cuzcoensis masarensis, Scutalus cuzcoensis masarensis W.K. Weyrauch, 1967 - syn of: Vermiculatus cuzcoensis marasensis (W.K. Weyrauch, 1967) - (BULIMULIDAE)
- cuzoensis, Macroceramus cuzoensis C. de la Torre & P. Bartsch, 2008 - syn of: Macroceramus cuzcoensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- cuzyensis, Aegopinella cuzyensis É.A.A. Locard, 1894 - syn of: Aegopinella nitens (A. Michaud, 1831) - (ZONITIDAE)
- cvijici, Bythinella cvijici P.S. Pavlovic, 1935 † - (BYTHINELLIDAE) (FOSSIL)
- cvijici, Melanopsis cvijici . Brusina, 1902 † - (MELANOPSIDAE) (FOSSIL)
- cvijici, Viviparus cvijici P.S. Pavlovic, 1932 † - (VIVIPARIDAE) (FOSSIL)
- cvitanovici, Illyricocongeria cvitanovici (. Brusina, 1907 †) - (DREISSENIDAE) (FOSSIL)
- cyacantha, Murex cyacantha G.B. II Sowerby, 1879 - syn of: Chicoreus virgineus (P.F. Röding, 1798) - (MURICIDAE)
- CYAMIIDAE G.O. Sars, 1878 - Family (BIVALVIA-HETERODONTA-EUHETERODONTA-IMPARIDENTIA-VENERIDA)
- Cyamiocardium, Genus Cyamiocardium T. Soot-Ryen, 1951 (CYAMIIDAE)
- Cyamiomactra, Genus Cyamiomactra F. Bernard, 1897 (CYAMIIDAE)
- Cyamionema, syn of: Genus Kidderia W.H. Dall, 1876 (CYAMIIDAE)
- Cyamium, Genus Cyamium R.A. Philippi, 1845 (CYAMIIDAE)
- cyanae, Mitrella cyanae K. Monsecour & D. Monsecour, 2016 - (COLUMBELLIDAE)
- cyanantyx, Sabalimax cyanantyx S. Tillier & P. Bouchet, 1988 - (EUCONULIDAE)
- Cyane, syn of: Genus Arhecharax F.G. Thompson, 1980 (PROSERPINELLIDAE)
- cyanea, Philinopsis cyanea (E.C. Von Martens, 1879) - syn of: Philinopsis speciosa W.H. Pease, 1860 - (AGLAJIDAE)
- cyanea, Dreissena cyanea P.J. Van Beneden, 1838 - syn of: Mytilopsis africana (P.J. Van Beneden, 1835) - (DREISSENIDAE)
- cyanea, Congeria cyanea P.J. Van Beneden, 1838 - syn of: Mytilopsis africana (P.J. Van Beneden, 1835) - (DREISSENIDAE)
- cyanea, Octopus cyanea J.E. Gray, 1849 - (OCTOPODIDAE)
- cyanea, Patella cyanea R.P. Lesson, 1831 - (PATELLIDAE)
- cyanea, Elysia cyanea G. Mamo in A. Caruana Gatto, 1867 - syn of: Thuridilla hopei (J.B. Vérany, 1853) - (PLAKOBRANCHIDAE)
- cyanea, Sepiella cyanea C.W. Robson, 1924 - (SEPIIDAE)
- cyanea gracilis, Octopus cyanea gracilis C.W. Robson, 1929 - syn of: Octopus cyanea J.E. Gray, 1849 - (OCTOPODIDAE)
- Cyaneitapes, syn of: Genus Venerupis J.B.P.A. Lamarck, 1818 (VENERIDAE)
- cyanella, Facelina cyanella (J.P.Y. Couthouy in A.A. Gould, 1852) - (FACELINIDAE)
- cyaneomaculata, Siphonaria cyaneomaculata G.B. III Sowerby, 1906 - syn of: Siphonaria concinna G.B. I Sowerby, 1823 - (SIPHONARIIDAE)
- cyaneum, Aglaja cyaneum E.C. Von Martens, 1879 - syn of: Philinopsis speciosa W.H. Pease, 1860 - (AGLAJIDAE)
- cyaneum, Buccinum cyaneum J.G. Bruguière, 1792 - (BUCCINIDAE)
- cyaneum patulum, Buccinum cyaneum patulum J.G. Bruguière, 1792 - (BUCCINIDAE)
- cyaneus, Macaronapaeus cyaneus J.A. Albers, 1852 - syn of: Napaeus pruninus (A.A. Gould, 1848) - (ENIDAE)
- cyaneus, Bulinus cyaneus E. Pirajno, 1842 - syn of: Bulinus truncatus (J.V. Audouin, 1827) - (PLANORBIDAE)
- cyanobranchiata, Marionia cyanobranchiata (W.P.E.S. Rüppell & F.S. Leuckart, 1828) - (TRITONIIDAE)
- cyanocaudata, Haminoea cyanocaudata J. Heller & T.E. Thompson, 1983 - (HAMINOEIDAE)
- Cyanocyclas, Genus Cyanocyclas H.M.D. De Blainville, 1818 (CYRENIDAE)
- Cyanogaster, syn of: Genus Pleurobranchaea J.F. Meckel in S.F. Leue, 1813 (PLEUROBRANCHAEIDAE)
- cyanomarginata, Haminoea cyanomarginata J. Heller & T.E. Thompson, 1983 - (HAMINOEIDAE)
- Cyanoplax, Genus Cyanoplax H.A. Pilsbry, 1892 (LEPIDOCHITONIDAE)
- cyanostoma, Austroconus cyanostoma (A. Adams, 1855) - (CONIDAE)
- cyanostoma, Phos cyanostoma A. Adams, 1851 - (NASSARIIDAE)
- cyanostoma, Nerita cyanostoma P.M.A. Morelet, 1853 - syn of: Nerita insculpta C.A. Récluz, 1841 - (NERITIDAE)
- cyanostoma, Homorus cyanostoma (L. Pfeiffer, 1842) - (SUBULINIDAE)
- cyanostomus, Phos cyanostomus A. Adams, 1850 - syn of: Phos cyanostoma A. Adams, 1851 - (NASSARIIDAE)
- cyanosus, Callistochiton cyanosus W.H. Dall, 1919 - syn of: Callistochiton decoratus H.A. Pilsbry, 1893 ex Carpenter MS - (CALLISTOPLACIDAE)
- cyanozoaria, Oleacina cyanozoaria J. Gundlach in L. Pfeiffer, 1857 - (OLEACINIDAE)
- Cyanthopoma, Genus Cyanthopoma Rowson, 2010 (CYCLOPHORIDAE)
- cyatha, Phosinella cyatha (C.F. Laseron, 1956) - (RISSOINIDAE)
- cyathella, Cheilea equestris cyathella L.A. Reeve, 1858 - (HIPPONICIDAE)
- Cyathermia, Genus Cyathermia A. Warιn & P. Bouchet, 1989 (NEOMPHALIDAE)
- CYATHERMIIDAE - syn of Family: NEOMPHALIDAE
- cyathinium, Platyceras cyathinium Lindström, 1884 † - syn of: Orthonychia enorme (Lindström, 1884 †) - (PLATYCERATIDAE) (FOSSIL)
- cyathinum, Platyceras cyathinum Lindström, 1884 † - syn of: Orthonychia enorme (Lindström, 1884 †) - (PLATYCERATIDAE) (FOSSIL)
- Cyathodonta, Genus Cyathodonta T.A. Conrad, 1849 (THRACIIDAE)
- cyathoides, Cadulus cyathoides S.G.A. Jaeckel, 1932 - (GADILIDAE)
- Cyathopoma, Genus Cyathopoma H.F. Blanford & W.T. Blanford, 1861 (CYCLOPHORIDAE)
- cyathula, Crassostrea cyathula (J.B.P.A. Lamarck, 1806 †) - (OSTREIDAE) (FOSSIL)
- cyathulum, Fissurella cyathulum L.A. Reeve, 1850 - (FISSURELLIDAE)
- cyathus, Vitrinoconus cyathus (L. Pfeiffer, 1845) - (TROCHOMORPHIDAE)
- cyathus attenuatus, Cadulus cyathus attenuatus T.A. de M. Monterosato, 1875 - syn of: Cadulus attenuatus T.A. de M. Monterosato, 1875 - (GADILIDAE)
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