- luofensis, Ruanites luofensis (Ruan, 1981 †) - (MIMOSPHINCTIDAE) (FOSSIL)
- luofuensis, Homoctenus luofuensis Li, 1995 † - (HOMOCTENIDAE) (FOSSIL)
- Luoguella, Genus Luoguella Pan & Erwin, 2002 (GASTROPODA INCERTAE SEDIS) (FOSSIL)
- Luoguispira, Genus Luoguispira Pan & Erwin, 2002 (GASTROPODA INCERTAE SEDIS) (FOSSIL)
- luojiaduensis, Bakevellia luojiaduensis Xiong, 1977 † - (BAKEVELLIIDAE) (FOSSIL)
- luomianensis, Loxoplocus luomianensis Xi & Yu, 1990 † - syn of: Loxoplocus gothlandicus Ulrich & Scofield, 1897 † - (LOPHOSPIRIDAE) (FOSSIL)
- lupanaria, Hysteroconcha lupanaria (R.P. Lesson, 1831) - (VENERIDAE)
- lupanaria, Venus lupanaria R.P. Lesson, 1831 - syn of: Hysteroconcha lupanaria (R.P. Lesson, 1831) - (VENERIDAE)
- lupanaria, Pitar lupanaria R.P. Lesson, 1831 - syn of: Hysteroconcha lupanaria (R.P. Lesson, 1831) - (VENERIDAE)
- lupata, Nodosoclymenia lupata Czarnocki, 1989 † - (PLATYCLYMENIIDAE) (FOSSIL)
- lupe, Solariella lupe E. Rolán, J.M. Hernández & F. Déniz, 2005 - (SOLARIELLIDAE)
- lupensis, Cecilioides lupensis E. Caziot, 1909 - syn of: Cecilioides acicula (O.F. Müller, 1774) - (FERUSSACIIDAE)
- Lupherella, Genus Lupherella Imlay, 1967 (MONOTIDAE) (FOSSIL)
- lupheri, Arieticeras lupheri Imlay, 1968 † - (HILDOCERATIDAE) (FOSSIL)
- lupheri, Myophorella lupheri Poulton, 1980 † - (MYOPHORELLIDAE) (FOSSIL)
- Lupherites, Genus Lupherites (AMMONOIDEA (unassigned)) (FOSSIL)
- Lupia, syn of: Genus Sinum P.F. Rφding, 1798 (NATICIDAE)
- lupina, Diplodonta lupina G.B. Brocchi, 1814 - syn of: Diplodonta lupinus (G.B. Brocchi, 1814) - (UNGULINIDAE)
- lupina, Dosinia lupina (C. Linnaeus, 1758) - (VENERIDAE)
- lupina lincta, Dosinia lupina lincta (R. Pulteney, 1799) - (VENERIDAE)
- lupinaria, Pitar lupinaria R.P. Lesson, 1830 - syn of: Hysteroconcha lupanaria (R.P. Lesson, 1831) - (VENERIDAE)
- lupinina, Dosinia lupinina É.A.A. Locard, 1886 - syn of: Dosinia lupina (C. Linnaeus, 1758) - (VENERIDAE)
- lupinus, Pusionella lupinus R.A. Philippi, 1850 - syn of: Clavatula milleti (S.A.A. Petit De La Saussaye, 1851) - (CLAVATULIDAE)
- lupinus, Fusus lupinus R.A. Philippi, 1850 - syn of: Clavatula milleti (S.A.A. Petit De La Saussaye, 1851) - (FASCIOLARIIDAE)
- lupinus, Natica lupinus G.P. Deshayes in J.B.P.A. Lamarck, 1838 - syn of: Natica fasciata P.F. Röding, 1798 - (NATICIDAE)
- lupinus, Clanculus lupinus K.T. Menke, 1843 - syn of: Clanculus denticulatus (J.E. Gray, 1827) - (TROCHIDAE)
- lupinus, Diplodonta lupinus (G.B. Brocchi, 1814) - (UNGULINIDAE)
- lupinus, Venus lupinus G.B. Brocchi, 1814 - syn of: Diplodonta rotundata (G. Montagu, 1803) - (VENERIDAE)
- lupinus afra, Dosinia lupinus afra (J.F. Gmelin, 1791) - syn of: Dosinia afra (J.F. Gmelin, 1791) - (VENERIDAE)
- lupinus orbignyi, Dosinia lupinus orbignyi R.W. Dunker, 1845 - syn of: Dosinia orbignyi R.W. Dunker, 1845 - (VENERIDAE)
- lupinus rufescens, Dosinia lupinus rufescens M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1893 - syn of: Dosinia lupina (C. Linnaeus, 1758) - (VENERIDAE)
- Lupira, Genus Lupira Stephenson, 1941 (TURBINELLIDAE) (FOSSIL)
- lupita, Haplocochlias lupita J. Espinosa & J.A. Ortea, 2013 - (SKENEIDAE)
- Luponia, syn of: Genus Cypraeovula J.E. Gray, 1824 (CYPRAEIDAE)
- Luponovula, Genus Luponovula F. Sacco, 1894 (EOCYPRAEIDAE) (FOSSIL)
- Luppovella, Genus Luppovella Nikolov , 1966 (NEOCOMITIDAE) (FOSSIL)
- luppovi, Deshayesites luppovi T.N. Bogdanova, 1979 † - (DESHAYESITIDAE) (FOSSIL)
- Luppovia, Genus Luppovia T.N. Bogdanova, Kakabadze & Mikhailova, 1978 (ANCYLOCERATIDAE) (FOSSIL)
- lupulina, Vexillum lupulina R.P. Lesson - syn of: Vexillum intermedium (L.C. Kiener, 1838) - (COSTELLARIIDAE)
- Lupunovula, Genus Lupunovula Dolin & Pacaud, 2009 (OVULIDAE) (FOSSIL)
- lupus, Glabrocingulum lupus Batten, 1989 † - (GOSSELETINIDAE) (FOSSIL)
- luquei, Africonus luquei (E. Rolán & H. Trovão, 1990) - (CONIDAE)
- luquei, Trapania luquei J.A. Ortea, 1989 - (GONIODORIDIDAE)
- luquei, Crisilla luquei J. Templado & E. Rolán, 1994 - (RISSOIDAE)
- luquillensis, Polydontes luquillensis R.J. Shuttleworth, 1854 - (CAMAENIDAE)
- Luquillia, syn of: Genus Polydontes P.D. Montfort, 1810 (CAMAENIDAE)
- lura, Praecuvierina lura (Hodgkinson, 1992 †) - (PRAECUVIERINIDAE) (FOSSIL)
- Lurama, syn of: Genus Vallonia A. Risso, 1826 (VALLONIIDAE)
- lurana, Anteaeolidiella lurana (Er. Marcus & Ev. Marcus, 1967) - (AEOLIDIIDAE)
- lurca, Thordisa lurca (Er. Marcus & Ev. Marcus, 1967) - (DISCODORIDIDAE)
- lurdoni, Ampelita lurdoni E. Fischer-Piette, Ch.P. Blanc, F. Blanc & F. Salvat, 1994 - (ACAVIDAE)
- lurensis, Pseudothurmannia lurensis Busnardo, 1970 † - (CRIOCERATITIDAE) (FOSSIL)
- lurensis, Dufrenoyia dufrenoyi lurensis (Kilian, 1888 †) - (DESHAYESITIDAE) (FOSSIL)
- Luria, Genus Luria F.P. Jousseaume, 1884 (CYPRAEIDAE)
- lurida, Barbatia lurida (G.B. I Sowerby, 1833) - (ARCIDAE)
- lurida, Arene lurida (W.H. Dall, 1913) - (ARENEIDAE)
- lurida, Neptunea lurida A. Adams & L.A. Reeve, 1850 - syn of: Barbitonia arthritica (A. Valenciennes, 1858) - (BUCCINIDAE)
- lurida, Chaetopleura lurida (G.B. I Sowerby in W.J. Broderip & G.B. I Sowerby, 1832) - (CHAETOPLEURIDAE)
- lurida, Pyreneola lurida (C. Hedley, 1907) - (COLUMBELLIDAE)
- lurida, Vexillum lurida W.H. Turton, 1932 - syn of: Vexillum patulum (L.A. Reeve, 1845) - (COSTELLARIIDAE)
- lurida, Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida, Epirobia lurida F.G. Thompson, 1976 - (EPIROBIIDAE)
- lurida, Trichia lurida (C. Pfeiffer, 1828) - (HYGROMIIDAE)
- lurida, Plebecula lurida R.T. Lowe, 1831 - syn of: Plebecula littorinella (J.F. Mabille, 1883) - (HYGROMIIDAE)
- lurida, Mactra lurida R.A. Philippi, 1850 - syn of: Mactra cygnus J.F. Gmelin, 1791 - (MACTRIDAE)
- lurida, Dentimargo lurida (H.H. Suter, 1908) - (MARGINELLIDAE)
- lurida, Ocinebrina lurida (A.T. von Middendorff, 1848) - (MURICIDAE)
- lurida, Zeuxis lurida A.A. Gould, 1850 - syn of: Nassarius graphiterus (J.B. Hombron & C.H. Jacquinot, 1848) - (NASSARIIDAE)
- lurida, Nassa lurida A.A. Gould, 1850 - syn of: Nassarius graphiterus (J.B. Hombron & C.H. Jacquinot, 1848) - (NASSARIIDAE)
- lurida, Natica lurida R.A. Philippi, 1852 - syn of: Notocochlis gualteriana (C.A. Récluz, 1844) - (NATICIDAE)
- lurida, Ostrea lurida Carpenter, 1864 - syn of: Ostrea conchaphila Carpenter, 1857 - (OSTREIDAE)
- lurida, Atrina lurida L.A. Reeve, 1858 - syn of: Atrina chinensis (G.P. Deshayes, 1841) - (PINNIDAE)
- lurida, Comitas lurida (A. Adams & L.A. Reeve, 1850) - (PSEUDOMELATOMIDAE)
- lurida, Syrnola lurida (H.H. Suter, 1908) - (PYRAMIDELLIDAE)
- lurida, Chersomitra lurida (R.J. Shuttleworth, 1852) - (SPIRAXIDAE)
- lurida albida, Cypraea lurida albida O.G. Costa, 1829 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida badia, Luria lurida badia G.S. Coen, 1949 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida brunnea, Cypraea lurida brunnea T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida caerulescens, Cypraea lurida caerulescens É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida cinerea, Cypraea lurida cinerea T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida concolor, Cypraea lurida concolor W. Kobelt, 1906 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida congiunta, Cypraea lurida congiunta F. Settepassi, 1977 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida curta, Cypraea lurida curta É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida cylindrica, Cypraea lurida cylindrica É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida elongata, Cypraea lurida elongata F. Settepassi, 1977 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida expansa, Ostrea lurida expansa P.P. Carpenter, 1864 - syn of: Ostrea conchaphila Carpenter, 1857 - (OSTREIDAE)
- lurida fasciata, Cypraea lurida fasciata T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida fulva, Cypraea lurida fulva É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida immaculata, Cypraea lurida immaculata F. Settepassi, 1977 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida incrassata, Luria lurida incrassata G.S. Coen, 1933 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida laticaudata, Ostrea lurida laticaudata P.P. Carpenter, 1864 - syn of: Ostrea conchaphila Carpenter, 1857 - (OSTREIDAE)
- lurida liburnica, Luria lurida liburnica G.S. Coen, 1933 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida major, Cypraea lurida major P.M. Pallary, 1900 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida maxima, Cypraea lurida maxima T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida media, Cypraea lurida media T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida minima, Cypraea lurida minima R.W. Dunker, 1853 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida monochroa, Cypraea lurida monochroa É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida monstrosa, Cypraea lurida monstrosa J.E. Gray, 1828 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida munda, Ocenebra lurida munda P.P. Carpenter, 1864a - syn of: Ocinebrina lurida (A.T. von Middendorff, 1848) - (MURICIDAE)
- lurida nebulosa, Cypraea lurida nebulosa T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida normalis, Cypraea lurida normalis T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida obstructa, Luria lurida obstructa G.S. Coen, 1933 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida oceanica, Luria lurida oceanica (F.A. Schilder, 1930) - (CYPRAEIDAE)
- lurida onycina, Luria lurida onycina G.S. Coen, 1933 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida parallela, Chaetopleura lurida parallela P.P. Carpenter, 1864 - syn of: Chaetopleura lurida (G.B. I Sowerby in W.J. Broderip & G.B. I Sowerby, 1832) - (CHAETOPLEURIDAE)
- lurida pubescens, Cypraea lurida pubescens T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida pulchroides, Luria lurida pulchroides R. Alvarado & J. Alvarez, 1964 - (CYPRAEIDAE)
- lurida rufescens, Cypraea lurida rufescens A. da Costa, 1829 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida rufofulva, Cypraea lurida rufofulva W. Kobelt, 1906 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida rufoides, Ostrea lurida rufoides P.P. Carpenter, 1864 - syn of: Ostrea conchaphila Carpenter, 1857 - (OSTREIDAE)
- lurida sclera, Ocinebrina lurida sclera (W.H. Dall, 1919) - (MURICIDAE)
- lurida turdicula, Cypraea lurida turdicula T.A. de M. Monterosato, 1897 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida ventricosa, Cypraea lurida ventricosa É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida virescens, Cypraea lurida virescens A. da Costa, 1829 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- lurida zonata, Cypraea lurida zonata É. Mollerat, 1890 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- luridoidea, Erosaria luridoidea P.M. Pallary, 1900 - syn of: Erosaria spurca (C. Linnaeus, 1758) - (CYPRAEIDAE)
- luridum, Buccinum luridum F.W. Hutton, 1873 - syn of: Cominella quoyana (A. Adams, 1855) - (BUCCINIDAE)
- luridum, Homalopoma luridum (W.H. Dall, 1885) - (COLLONIIDAE)
- luridum, Fusus luridum A.T. von Middendorff, 1848 - syn of: Ocinebrina lurida (A.T. von Middendorff, 1848) - (FASCIOLARIIDAE)
- luridum, Beaniceras luridum C.T. Simpson, 1855 † - (LIPAROCERATIDAE) (FOSSIL)
- luridum, Sphaerium luridum E.C. Von Martens, 1900 - syn of: Sphaerium triangulare (T. Say, 1829) - (SPHAERIIDAE)
- luridus, Helicofusus luridus A.N. Golikov, 1985 - syn of: Latisipho hallii (W.H. Dall, 1873) - (BUCCINIDAE)
- luridus, Bostryx luridus (L. Pfeiffer, 1863) - (BULIMULIDAE)
- luridus, Chiton luridus G.B. I Sowerby in W.J. Broderip & G.B. I Sowerby, 1832 - syn of: Chaetopleura lurida (G.B. I Sowerby in W.J. Broderip & G.B. I Sowerby, 1832) - (CHITONIDAE)
- luridus, Conus luridus A. Adams, 1855 - syn of: Lautoconus taslei (L.C. Kiener, 1850) - (CONIDAE)
- luridus, Leptochiton luridus W.H. Dall, 1902 - syn of: Leptochiton alveolus (S.L. Lovén, 1846) - (LEPTOCHITONIDAE)
- luridus, Nassarius luridus A.A. Gould, 1850 - syn of: Nassarius graphiterus (J.B. Hombron & C.H. Jacquinot, 1848) - (NASSARIIDAE)
- Lurifax, Genus Lurifax A. Warιn & P. Bouchet, 2001 (ORBITESTELLIDAE)
- luroni, Kalidos luroni E. Fischer-Piette, Ch.P. Blanc, F. Blanc & F. Salvat, 1994 - (ARIOPHANTIDAE)
- lurulenta, Anodonta lurulenta P.M.A. Morelet, 1849 - (UNIONIDAE)
- lusabaensis, Phestia lusabaensis Dickins, 1999 † - (NUCULANIDAE) (FOSSIL)
- lusae, Chevroderma lusae D. Ivanov & A.H. Scheltema, 2002 - (PROCHAETODERMATIDAE)
- lusatiae, Mytiloides lusatiae Andert, 1911 † - (INOCERAMIDAE) (FOSSIL)
- lusca, Powelliphanta lignaria lusca A.W.B. Powell, 1949 - (RHYTIDIDAE)
- luscens, Odetta luscens L. de Folin, 1872 - (PYRAMIDELLIDAE)
- luschani, Olivancillaria luschani P. Oppenheim, 1919 † - (OLIVIDAE) (FOSSIL)
- luscinia, Cancellaria luscinia J.C. Melvill & R. Standen, 1903 - syn of: Fusiaphera macrospira (A. Adams & L.A. Reeve, 1850) - (CANCELLARIIDAE)
- lusciniae, Bittium lusciniae (R.B. Watson, 1880) - (CERITHIIDAE)
- lusciniae, Onoba lusciniae (R.B. Watson, 1886) - (RISSOIDAE)
- lushanensis, Hemiphaedusa lushanensis C.K. Chang & K. Maeda, 1982 - (CLAUSILIIDAE)
- lushani, Melanopsis lushani d'Archiac in Viquesnel, 1846 † - (MELANOPSIDAE) (FOSSIL)
- lusia, Lahillia lusia R.O. Wilckens, 1910 † - syn of: Lahillia larseni (Sharman & R.B. Newton, 1897 †) - (LAHILLIDAE) (FOSSIL)
- lusitanensis, Ledella lusitanensis J.A. Allen & G. Hannah, 1989 - (NUCULANIDAE)
- lusitanica, Platyla lusitanica (D.T. Holyoak & M. Seddon, 1985) - (ACICULIDAE)
- lusitanica, Ancistrobasis lusitanica (P. Fischer, 1882) - (ANCISTROBASIDAE)
- lusitanica, Geomalacus lusitanica J. Da Silva e Castro, 1873 - syn of: Geomalacus maculosus G.J. Allman, 1843 - (ARIONIDAE)
- lusitanica, Cerithium vulgatum lusitanica F. Nordsieck, 1974 - (CERITHIIDAE)
- lusitanica, Chaetopleura lusitanica G.T. Tilesius, 1802 - syn of: Chaetopleura angulata (L. Spengler, 1797) - (CHAETOPLEURIDAE)
- lusitanica, Chondrina lusitanica (L. Pfeiffer, 1848) - (CHONDRINIDAE)
- lusitanica, Clausilia lusitanica J.R. Bourguignat, 1876 - syn of: Clausilia bidentata moniziana R.T. Lowe, 1852 - (CLAUSILIIDAE)
- lusitanica, Hemiprionodonta lusitanica (Sharpe, 1853 †) - (GLYPTARCIDAE) (FOSSIL)
- lusitanica, Belgrandia lusitanica (A. Paladilhe, 1867) - (HYDROBIIDAE)
- lusitanica, Hydrobia lusitanica É.A.A. Locard, 1899 - syn of: Peringia ulvae (T. Pennant, 1777) - (HYDROBIIDAE)
- lusitanica, Ostrea lusitanica Bell, 1893 † - (OSTREIDAE) (FOSSIL)
- lusitanica, Oxychilus lusitanica É.A.A. Locard, 1899 - syn of: Oxychilus cellarius (O.F. Müller, 1774) - (OXYCHILIDAE)
- lusitanica, Glyptarca lusitanica Sharpe, 1853 † - syn of: Hemiprionodonta lusitanica (Sharpe, 1853 †) - (PARALLELODONTIDAE) (FOSSIL)
- lusitanica, Patella lusitanica J.F. Gmelin, 1791 - syn of: Patella rustica C. Linnaeus, 1758 - (PATELLIDAE)
- lusitanica, Manzonia lusitanica S. Gofas, 2007 - (RISSOIDAE)
- lusitanica, Rostellaria lusitanica C. Mayer, 1869 † - (ROSTELLARIIDAE) (FOSSIL)
- lusitanica, Solariella lusitanica (P. Fischer, 1882) - (SOLARIELLIDAE)
- lusitanica, Melanoides lusitanica (F. Roman, 1907 †) - (THIARIDAE) (FOSSIL)
- lusitanica, Oestophora lusitanica (L. Pfeiffer, 1841) - (TRISSEXODONTIDAE)
- lusitanica, Gibbula tumida lusitanica F. Nordsieck, 1982 - (TROCHIDAE)
- lusitanica, Venus lusitanica J.F. Gmelin, 1791 - syn of: Chamelea striatula (E.M. Da Costa, 1778) - (VENERIDAE)
- lusitanica minor, Patella lusitanica minor A. Marion, 1883 - syn of: Patella rustica C. Linnaeus, 1758 - (PATELLIDAE)
- lusitanicum, Buccinum lusitanicum P.M. Pallary, 1931 - syn of: Buccinum humphreysianum I. Bennet, 1825 - (BUCCINIDAE)
- lusitanicum, Calliostoma zizyphinum lusitanicum F. Nordsieck & F.F. Talavera, 1980 - (CALLIOSTOMATIDAE)
- lusitanicum, Crioceratites lusitanicum Choffat, 1886 † - syn of: Davouxiceras lusitanicum (Choffat, 1886 †) - (CRIOCERATITIDAE) (FOSSIL)
- lusitanicum, Davouxiceras lusitanicum (Choffat, 1886 †) - (EMERICICERATIDAE) (FOSSIL)
- lusitanicum, Hildoceras lusitanicum Meister, 1913 † - (HILDOCERATIDAE) (FOSSIL)
- lusitanicus, Arion lusitanicus J.F. Mabille, 1868 - (ARIONIDAE)
- lusitanicus, Arion lusitanicus Auct. non J.F. Mabille, 1868 - syn of: Arion vulgaris (A. Moquin-Tandon, 1855) - (ARIONIDAE)
- lusitanicus, Chiton lusitanicus G.T. Tilesius, 1802 - syn of: Chaetopleura angulata (L. Spengler, 1797) - (CHITONIDAE)
- lusitanicus, Fusus lusitanicus E.A. Allen, 1858 - syn of: Ocinebrina edwardsi (B.C.M. Payraudeau, 1826) - (FASCIOLARIIDAE)
- lusitanicus, Lusitanops lusitanicus (E.R. Sykes, 1906) - (RAPHITOMIDAE)
- lusitaniformis, Extranodites lusitaniformis Jeannet, 1951 † - (ASPIDOCERATIDAE) (FOSSIL)
- Lusitanites, Genus Lusitanites Ruzhentsev & Bogoslovskaya, 1971 (NEOGLYPHIOCERATIDAE) (FOSSIL)
- Lusitanops, Genus Lusitanops H. Nordsieck, 1968 (RAPHITOMIDAE)
- lusitanus, Unio lusitanus H. Drouët, 1879 - syn of: Unio abrantesianus É.A.A. Locard, 1899 - (UNIONIDAE)
- Lusitromina, Genus Lusitromina M.G. Harasewych & Y.I. Kantor, 2004 (BUCCINIDAE)
- lusoana, Yoldia lusoana Gladikova, 1984 † - syn of: Yoldia posneri L. Krishtofovich, 1973 † - (YOLDIIDAE) (FOSSIL)
- lusoria, Rissoa lusoria Yokoyama, 1926 † - (RISSOIDAE) (FOSSIL)
- lusoria, Mastonia lusoria (C.M. Tapparone-Canefri, 1877) - (TRIPHORIDAE)
- lusoria, Meretrix lusoria (P.F. Röding, 1798) - (VENERIDAE)
- lusoria, Venus lusoria P.F. Röding, 1798 - syn of: Meretrix lusoria (P.F. Röding, 1798) - (VENERIDAE)
- lusorius, Drymaeus lusorius L. Pfeiffer, 1855 - (BULIMULIDAE)
- lussae, Retimohnia lussae A. Kosyan & Y.I. Kantor, 2016 - (BUCCINIDAE)
- lussii, Merica lussii R.E. Petit & M.G. Harasewych, 2000 - (CANCELLARIIDAE)
- lussii, Oocorys lussii L. Bozzetti, 1990 - syn of: Oocorys verrillii (W.H. Dall, 1889) - (CASSIDAE)
- lussii, Marginella lussii B. Hayes & V.G. Millard, 1995 - (MARGINELLIDAE)
- lussii, Mitra lussii H. Turner & R. Salisbury, 2007 - (MITRIDAE)
- lussinensis, Truncatellina lussinensis V. Štamol, 1995 - (VERTIGINIDAE)
- Lussivolutopsius, Genus Lussivolutopsius Y.I. Kantor, 1983 (BUCCINIDAE)
- lustra, Volvarina lustra N.E. Weisbord, 1962 † - (MARGINELLIDAE) (FOSSIL)
- lustralis, Praelucina lustralis Barrande, 1881 † - (PRAELUCINIDAE) (FOSSIL)
- lustrica, Amnicola lustrica (T. Say) - (AMNICOLIDAE)
- lustrica, Marstonia lustrica (H.A. Pilsbry, 1890) - (HYDROBIIDAE)
- lusus, Haliotis lusus H.J. Finlay, 1927 - syn of: Haliotis cracherodi W.E. Leach, 1814 - (HALIOTIDAE)
- lutani, Talparia talpa lutani C.B. Bridges, 2015 - (CYPRAEIDAE)
- lutaoi, Rissoina lutaoi C.K. Chang & W.L. Wu, 2004 - (RISSOINIDAE)
- lutaoi, Strobiligera lutaoi C.K. Chang & W.L. Wu, 2006 - (TRIPHORIDAE)
- lutaoi, Microstelma lutaoi C.K. Chang & W.L. Wu, 2004 - (ZEBINIDAE)
- lutaoi, Schwartziella lutaoi (C.K. Chang & W.L. Wu, 2004) - (ZEBINIDAE)
- lutaoi, Pandalosia lutaoi C.K. Chang & W.L. Wu, 2004 - syn of: Schwartziella lutaoi (C.K. Chang & W.L. Wu, 2004) - (ZEBINIDAE)
- lutaria, Gabbia lutaria W.F. Ponder, 2003 - (BITHYNIIDAE)
- lutaria, Petterdiana lutaria H.B. Baker, 1941 - syn of: Brazieria lutaria (H.B. Baker, 1941) - (HYDROBIIDAE)
- Lutaria, syn of: Genus Lutraria J.B.P.A. Lamarck, 1799 (MACTRIDAE)
- lutaria, Agaronia lutaria (P.F. Röding, 1798) - (OLIVIDAE)
- lutaria, Anazola lutaria F.P. Marrat, 1871 - syn of: Agaronia acuminata (J.B.P.A. Lamarck, 1811) - (OLIVIDAE)
- lutaria, Ostrea chilensis lutaria F.W. Hutton, 1873 - (OSTREIDAE)
- lutaria, Exomilus lutaria (C. Hedley, 1907) - (RAPHITOMIDAE)
- lutaria, Brazieria lutaria (H.B. Baker, 1941) - (TROCHOMORPHIDAE)
- lutarius, Megomphix lutarius H.B. Baker, 1932 - (MEGOMPHICIDAE)
- lutatii, Metacenoceras lutatii (C. Gemmellaro, 1886 †) - (CENOCERATIDAE) (FOSSIL)
- lutatii, Nautilus lutatii C. Gemmellaro, 1886 † - syn of: Metacenoceras lutatii (C. Gemmellaro, 1886 †) - (NAUTILIDAE) (FOSSIL)
- lutea, Aglaja lutea A. Risso, 1818 - syn of: Aglaja ocelligera (L.S.R. Bergh, 1893) - (AGLAJIDAE)
- lutea, Philippia lutea (J.B.P.A. Lamarck, 1822) - (ARCHITECTONICIDAE)
- lutea, Assiminea lutea (A. Adams, 1861) - (ASSIMINEIDAE)
- lutea, Astarte lutea B.F. Perkins, 1869 - (ASTARTIDAE)
- lutea, Anisodonta lutea (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (BASTEROTIIDAE)
- lutea, Basterotia lutea (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - syn of: Anisodonta lutea (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (BASTEROTIIDAE)
- lutea, Calocochlia roissyana lutea (A.E.J. Férussac, 1821) - (BRADYBAENIDAE)
- lutea, Phoenicobius aratus lutea (G.B. I Sowerby, 1840) - (BRADYBAENIDAE)
- lutea, Helicostyla smaragdina lutea C.G. Semper, 1877 - (BRADYBAENIDAE)
- lutea, Amphidromus sinistralis lutea E.C. Von Martens, 1899 - (CAMAENIDAE)
- lutea, Admetula lutea P. Bouchet & R.E. Petit, 2008 - (CANCELLARIIDAE)
- lutea, Venericardia lutea F.W. Hutton, 1880 - syn of: Pleuromeris zelandica (G.P. Deshayes, 1854) - (CARDITIDAE)
- lutea, Pleuromeris lutea F.W. Hutton, 1880 - syn of: Pleuromeris zelandica (G.P. Deshayes, 1854) - (CARDITIDAE)
- lutea, Prolixodens lutea (A. Cecalupo & I. Perugia, 2012) - (CERITHIOPSIDAE)
- lutea, Lienardia lutea W.H. Pease, 1897 - (CLATHURELLIDAE)
- lutea, Palmadusta lutea (J.F. Gmelin, 1791) - (CYPRAEIDAE)
- lutea, Palmadusta lutea W.R. Steadman & B.C. Cotton, 1943 - syn of: Palmadusta humphreyii yaloka W.R. Steadman & B.C. Cotton, 1943 - (CYPRAEIDAE)
- lutea, Corbicula lutea (P.M.A. Morelet, 1862) - (CYRENIDAE)
- lutea, Gibberula lutea F.P. Jousseaume, 1884 - (CYSTISCIDAE)
- lutea, Diplommatina shikokuensis lutea J.T. Kuroda & T. Habe, 1961 - (DIPLOMMATINIDAE)
- lutea, Geitodoris lutea K. Baba, 1937 - (DISCODORIDIDAE)
- lutea, Eatoniella lutea (H.H. Suter, 1908) - (EATONIELLIDAE)
- lutea, Melanella lutea R. Garcia del Castillo, 2000 - (EULIMIDAE)
- lutea, Fusceulima lutea (W. Turton, 1832) - (EULIMIDAE)
- lutea, Scintilla lutea (J.B.P.A. Lamarck, 1818) - (GALEOMMATIDAE)
- lutea, Harpa costata lutea L. Bozzetti, 2012 - (HARPIDAE)
- lutea, Cepaea hortensis lutea (Y.L. Picard, 1834) - (HELICIDAE)
- lutea, Helicina lutea Sowerby, 1847 - syn of: Helicina platychila (J.K. Megerle Von Mühlfeld, 1824) - (HELICINIDAE)
- lutea, Recluzia lutea (G.F. Bennett, 1840) - (JANTHINIDAE)
- lutea, Littoraria lutea (R.A. Philippi, 1847) - (LITTORINIDAE)
- lutea, Littorina lutea P. Dautzenberg & H. Fischer, 1915 - syn of: Littorina obtusata (C. Linnaeus, 1758) - (LITTORINIDAE)
- lutea, Littorina saxatilis lutea P. Dautzenberg & P. Durouchoux, 1900 - (LITTORINIDAE)
- lutea, Radix lutea G. Montagu, 1803 - syn of: Radix labiata (E.A. Rossmässler, 1835) - (LYMNAEIDAE)
- Lutea, syn of: Genus Myxas W.E. Leach in G.B. Sowerby, 1822 (LYMNAEIDAE)
- lutea, Mangelia lutea A.A. Gould, 1860 - (MANGELIIDAE)
- lutea, Marginella lutea G.B. III Sowerby, 1889 - (MARGINELLIDAE)
- lutea, Melanopsis iraqensis lutea P.M. Pallary, 1939 - (MELANOPSIDAE)
- lutea, Mitra lutea J.R.C. Quoy & J.P. Gaimard, 1833 - syn of: Strigatella acuminata (W.J. Swainson, 1824) - (MITRIDAE)
- lutea, Amygdalum lutea P. Fischer, 1882 - syn of: Amygdalum politum (A.E. Verrill & S. Smith in A.E. Verrill, 1880) - (MYTILIDAE)
- lutea, Oliva lutea F.P. Marrat, 1871 - syn of: Oliva vidua (P.F. Röding, 1798) - (OLIVIDAE)
- lutea, Acanthodoris lutea F.M. MacFarland, 1925 - (ONCHIDORIDIDAE)
- lutea, Ovula lutea P.M. Pallary, 1900 - syn of: Simnia spelta (C. Linnaeus, 1758) - (OVULIDAE)
- lutea, Partula lutea Lesson, 1831 - (PARTULIDAE)
- lutea, Partula lutea (A.E.J. Férussac, 1824) - (PARTULIDAE)
- lutea, Crimora lutea K. Baba, 1949 - (POLYCERIDAE)
- lutea, Odostomia lutea A. Garrett, 1873 - (PYRAMIDELLIDAE)
- lutea, Kermia lutea (W.H. Pease, 1860) - (RAPHITOMIDAE)
- lutea, Cyclas lutea H.E. Anton, 1838 - syn of: Sphaerium cornea (C. Linnaeus, 1767) - (SPHAERIIDAE)
- lutea, Peronidia lutea (Gray, 1828 †) - (TELLINIDAE) (FOSSIL)
- lutea, Euthymella lutea S. Kosuge, 1962 - (TRIPHORIDAE)
- lutea, Paratritonia lutea K. Baba, 1949 - (TRITONIIDAE)
- lutea, Gena lutea A. Adams, 1854 - syn of: Stomatella impertusa (H.W. Burrows, 1815) - (TROCHIDAE)
- lutea, Alcithoe lutea (R.B. Watson, 1882) - (VOLUTIDAE)
- lutea bizonata, Palmadusta lutea bizonata T. Iredale, 1935 - (CYPRAEIDAE)
- lutea japonica, Philippia lutea japonica (H.A. Pilsbry & R.E.C. Stearns in H.A. Pilsbry, 1895) - syn of: Philippia japonica (H.A. Pilsbry & R.E.C. Stearns in H.A. Pilsbry, 1895) - (ARCHITECTONICIDAE)
- lutea venulosa, Tellina lutea venulosa L. von Schrenck, 1861 † - syn of: Megangulus venulosus (L. von Schrenck, 1861 †) - (TELLINIDAE) (FOSSIL)
- Luteacarnea, syn of: Genus Obovaria C.S. Rafinesque, 1819 (UNIONIDAE)
- Luteamussium, syn of: Genus Propeamussium A. De Gregorio, 1884 (PROPEAMUSSIIDAE)
- luteata, Cernuella luteata L. Parreyss in L. Pfeiffer, 1857 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- luteata, Xeromagna luteata Auct. non L. Pfeiffer, 1857 - syn of: Xerosecta promissa C.A. Westerlund, 1893 - (HYGROMIIDAE)
- luteilabre, Chondropometes torrei luteilabre C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- Lutema, Genus Lutema Stephenson, 1941 (NEOGASTROPODA (unassigned)) (FOSSIL)
- lutensis, Sistaniana lutensis Y.I. Starobogatov & Z.I. Izzatullaev, 1985 - (MELANOPSIDAE)
- luteo, Pleurotomoides luteo F.W. Hutton, 1881 - syn of: Zemitrella choava (L.A. Reeve, 1859) - (CLATHURELLIDAE)
- luteobrunnea, Videna luteobrunnea (O.F. von Möllendorff, 1890) - (TROCHOMORPHIDAE)
- luteocella, Elimia caelatura luteocella I. Lea, 1868 - (PLEUROCERIDAE)
- luteocincta, Clathropsis luteocincta A. Cecalupo & I. Perugia, 2013 - (CERITHIOPSIDAE)
- luteocincta, Doris luteocincta G.O. Sars, 1870 - syn of: Diaphorodoris luteocincta (G.O. Sars, 1870) - (DORIDIDAE)
- luteocincta, Diaphorodoris luteocincta (G.O. Sars, 1870) - (ONCHIDORIDIDAE)
- luteocincta, Serratovolva luteocincta A. Celzard, 2008 - (OVULIDAE)
- luteocincta alba, Diaphorodoris luteocincta alba A. Portmann & Sandmeier, 1960 - syn of: Diaphorodoris luteocincta (G.O. Sars, 1870) - (ONCHIDORIDIDAE)
- luteocincta reticulata, Diaphorodoris luteocincta reticulata A. Portmann & Sandmeier, 1960 - syn of: Diaphorodoris luteocincta (G.O. Sars, 1870) - (ONCHIDORIDIDAE)
- luteocrinita, Divariscintilla luteocrinita P.M. Mikkelsen & R. Bieler, 1992 - (GALEOMMATIDAE)
- luteofasciata, Defrancia luteofasciata F.W. Hutton, 1881 - syn of: Zemitrella choava (L.A. Reeve, 1859) - (CLATHURELLIDAE)
- luteofasciata, Hemitrichiella luteofasciata (H.C. Lea, 1840) - (HELICARIONIDAE)
- luteofasciata, Pyrgocythara luteofasciata L.A. Reeve, 1845 - syn of: Pyrgocythara albovittata (C.B. Adams, 1845) - (MANGELIIDAE)
- luteofasciata, Voluta luteofasciata J.K. Megerle Von Mühlfeld, 1824 - syn of: Acteon tornatilis (C. Linnaeus, 1758) - (VOLUTIDAE)
- luteofasciata libmanana, Hemitrichiella luteofasciata libmanana (P. Bartsch, 1942) - (HELICARIONIDAE)
- luteofasciatus, Pseudacteon luteofasciatus (P. Müller, 1829) - (ACTEONIDAE)
- luteofasciatus, Amphidromus adamsii luteofasciatus H.C. Fulton, 1896 - (CAMAENIDAE)
- luteofasciatus, Theodoxus luteofasciatus (K. Miller, 1879) - (NERITIDAE)
- luteofusca, Cupedora luteofusca (J.C. Cox, 1868) - (CAMAENIDAE)
- luteofuscum, Anabathron luteofuscum (W.L. May, 1919) - (ANABATHRIDAE)
- luteola, Amastra luteola (A.E.J. Férussac) - (AMASTRIDAE)
- luteola, Bythinella luteola P. Radoman, 1976 - (BYTHINELLIDAE)
- luteola, Columbella luteola L.C. Kiener, 1841 - syn of: Columbella fuscata G.B. I Sowerby, 1832 - (COLUMBELLIDAE)
- luteola, Caryocorbula luteola (P.P. Carpenter, 1864) - (CORBULIDAE)
- luteola, Juliacorbula luteola P.P. Carpenter, 1864 - syn of: Caryocorbula luteola (P.P. Carpenter, 1864) - (CORBULIDAE)
- luteola, Corbicula luteola B. Prashad, 1928 - (CYRENIDAE)
- luteola, Taringa luteola (E.F. Kelaart, 1858) - (DISCODORIDIDAE)
- luteola, Thordisa luteola G.L. Chan & T.M. Gosliner, 2007 - (DISCODORIDIDAE)
- luteola, Doris luteola J.P.Y. Couthouy in A.A. Gould, 1852 - (DORIDIDAE)
- luteola, Helix luteola A.E.J. Férussac - syn of: Amastra luteola (A.E.J. Férussac) - (HELICIDAE)
- luteola, Helix luteola W. Kobelt, 1906 - syn of: Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- luteola, Pseudamnicola luteola (H.C. Küster, 1862) - (HYDROBIIDAE)
- luteola, Cernuella luteola G. Servain, 1880 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- luteola, Littoraria luteola (J.R.C. Quoy & J.P. Gaimard, 1833) - (LITTORINIDAE)
- luteola, Littorina luteola J.R.C. Quoy & J.P. Gaimard, 1833 - syn of: Littoraria luteola (J.R.C. Quoy & J.P. Gaimard, 1833) - (LITTORINIDAE)
- luteola, Lucina luteola G.P. Deshayes, 1848 - syn of: Loripes lucinalis (J.B.P.A. Lamarck, 1818) - (LUCINIDAE)
- luteola, Radix luteola (J.B.P.A. Lamarck, 1822) - (LYMNAEIDAE)
- luteola, Spisula luteola S.L. Lovén, 1846 - syn of: Spisula elliptica (J. Brown, 1827) - (MACTRIDAE)
- luteola, Mactra luteola S.L. Lovén, 1846 - syn of: Spisula elliptica (J. Brown, 1827) - (MACTRIDAE)
- luteola, Agaronia luteola J.B.P.A. Lamarck, 1811 - syn of: Agaronia lutaria (P.F. Röding, 1798) - (OLIVIDAE)
- luteola, Patella luteola J.B.P.A. Lamarck, 1819 - syn of: Patella ferruginea J.F. Gmelin, 1791 - (PATELLIDAE)
- luteola, Semele luteola L.A. Reeve, 1853 - syn of: Semele proficua (R. Pulteney, 1799) - (SEMELIDAE)
- luteola, Solariella luteola (A.W.B. Powell, 1937) - (SOLARIELLIDAE)
- luteola, Calcisuccinea luteola (A.A. Gould, 1848) - (SUCCINEIDAE)
- luteola, Terebra luteola J.C. Chenu, 1845 - syn of: Oxymeris crenulata (C. Linnaeus, 1758) - (TEREBRIDAE)
- luteola, Anodonta luteola I. Lea, 1858 - syn of: Anodontites tortilis (I. Lea, 1852) - (UNIONIDAE)
- luteola, Lampsilis radiata luteola (J.B.P.A. Lamarck, 1819) - (UNIONIDAE)
- luteola, Paludina luteola H.C. Küster, 1862 - syn of: Pseudamnicola luteola (H.C. Küster, 1862) - (VIVIPARIDAE)
- luteola australis, Radix luteola australis T.N. Annandale & Surya Rao, 1925 - (LYMNAEIDAE)
- luteola ovalis, Radix luteola ovalis Ramakrishna & A. Dey, 2007 - (LYMNAEIDAE)
- luteola rosea, Corbula luteola rosea M.B. Williamson, 1905 - syn of: Caryocorbula luteola (P.P. Carpenter, 1864) - (CORBULIDAE)
- luteola rudiuscula, Calcisuccinea luteola rudiuscula (E.C. Von Martens, 1898) - (SUCCINEIDAE)
- luteola sonorensis, Calcisuccinea luteola sonorensis (P.H. Fischer & J.C.H. Crosse, 1878) - (SUCCINEIDAE)
- luteola subtilis, Calcisuccinea luteola subtilis (E.C. Von Martens, 1898) - (SUCCINEIDAE)
- luteolapis, Zeacolpus luteolapis (J. Marwick, 1931 †) - (TURRITELLIDAE) (FOSSIL)
- luteolina, Cernuella luteolina É.A.A. Locard, 1890 - syn of: Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- luteolineata, Roboastra luteolineata (K. Baba, 1936) - (POLYCERIDAE)
- luteolozonatus, Liguus fasciatus luteolozonatus R.P. Guitart, 1945 - (ORTHALICIDAE)
- luteolum, Buccinum luteolum A. Valenciennes, 1858 - (BUCCINIDAE)
- luteolum, Buccinum luteolum J.C. Chenu, 1845 - syn of: Oxymeris crenulata (C. Linnaeus, 1758) - (BUCCINIDAE)
- luteolum, Pisidium luteolum H.B. Herrington, 1954 - syn of: Pisidium nitidum L. Jenyns, 1832 - (SPHAERIIDAE)
- luteolus, Joculator luteolus A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- luteolus, Dendronotus luteolus A. Lafont, 1871 - syn of: Dendronotus frondosus (P. Ascanius, 1774) - (DENDRONOTIDAE)
- luteolus, Nassarius luteolus (E.A. Smith, 1879) - (NASSARIIDAE)
- luteolus, Simpulopsis luteolus C.M.F. Ancey, 1901 - (SIMPULOPSIDAE)
- luteomaculosa, Tropaeas luteomaculosa (S. Nomura, 1938) - (PYRAMIDELLIDAE)
- luteomarginata, Cadlina luteomarginata B. McFarland, 1966 - (CADLINIDAE)
- luteomarginata, Purpura luteomarginata R.P. Montrouzier in S.M. Souverbie, 1861 - syn of: Mancinella echinulata (J.B.P.A. Lamarck, 1822) - (MURICIDAE)
- luteomarginatum, Vasticardium luteomarginatum (R.P.A. Voskuil & W.J.H. Onverwagt, 1991) - (CARDIIDAE)
- luteomarginatum insulare, Vasticardium luteomarginatum insulare E. Vidal, 1997 - syn of: Vasticardium insulare E. Vidal, 1997 - (CARDIIDAE)
- luteomarginatum marerubrum, Vasticardium luteomarginatum marerubrum R.P.A. Voskuil & W.J.H. Onverwagt, 1991 - syn of: Vasticardium marerubrum (R.P.A. Voskuil & W.J.H. Onverwagt, 1991) - (CARDIIDAE)
- luteonigra, Nerita luteonigra (H. Dekker, 2000) - (NERITIDAE)
- luteonigra, Cymostyla luteonigra H. Dekker, 2000 - syn of: Nerita luteonigra (H. Dekker, 2000) - (NERITIDAE)
- luteonigra, Rissoella luteonigra E. Rolán & F. Rubio, 2001 - (RISSOELLIDAE)
- luteophila, Spissatella luteophila J. Marwick, 1931 † - (CRASSATELLIDAE) (FOSSIL)
- luteophila, Jorgenia luteophila D.W. Taylor & E.A. Glover, 2009 - (LUCINIDAE)
- luteophila, Ihungia luteophila J. Marwick, 1931 † - (RISSOIDAE) (FOSSIL)
- luteophyla, Jorgenia luteophyla D.W. Taylor & E.A. Glover, 2009 - syn of: Jorgenia luteophila D.W. Taylor & E.A. Glover, 2009 - (LUCINIDAE)
- luteopicta, Kermia tessellata luteopicta P. Dautzenberg, 1932 - (RAPHITOMIDAE)
- luteopictus, Fusinus luteopictus (W.H. Dall, 1877) - (FASCIOLARIIDAE)
- luteopictus, Fusus luteopictus W.H. Dall, 1877 - syn of: Fusinus luteopictus (W.H. Dall, 1877) - (FASCIOLARIIDAE)
- luteopunctata, Felimida luteopunctata (H. Gantès, 1962) - (CHROMODORIDIDAE)
- luteopunctata, Glossodoris luteopunctata H. Gantès, 1962 - syn of: Felimida luteopunctata (H. Gantès, 1962) - (CHROMODORIDIDAE)
- luteorosea, Felimida luteorosea (J.L. Rapp, 1827) - (CHROMODORIDIDAE)
- luteorosea, Chromodoris luteorosea J.L. Rapp, 1827 - syn of: Felimida luteorosea (J.L. Rapp, 1827) - (CHROMODORIDIDAE)
- luteorosea, Doris luteorosea J.L. Rapp, 1827 - syn of: Felimida luteorosea (J.L. Rapp, 1827) - (DORIDIDAE)
- luteoroseus, Ischnochiton luteoroseus H.H. Suter, 1907 - (ISCHNOCHITONIDAE)
- luteorufa, Antonietta luteorufa R.L. Schmekel, 1966 - (FACELINIDAE)
- luteosoma, Selatodryas luteosoma D.G. Herbert, 2017 - (UROCYCLIDAE)
- luteostoma, Ampullaria luteostoma W.J. Swainson, 1823 - syn of: Pomacea glauca (C. Linnaeus, 1758) - (AMPULLARIIDAE)
- luteostoma, Buccinum luteostoma H.S. Holten, 1803 - syn of: Reishia luteostoma (H.S. Holten, 1803) - (BUCCINIDAE)
- luteostoma, Bursa luteostoma (W.H. Pease, 1861) - (BURSIDAE)
- luteostoma, Reishia luteostoma (H.S. Holten, 1803) - (MURICIDAE)
- luteostoma, Thaisella luteostoma H.S. Holten, 1803 - syn of: Reishia luteostoma (H.S. Holten, 1803) - (MURICIDAE)
- luteostoma, Phrontis luteostoma (W.J. Broderip & G.B. I Sowerby, 1829) - (NASSARIIDAE)
- luteostoma, Amycla luteostoma G.S. Coen, 1933 † - syn of: Tritia corniculum (A.G. Olivi, 1792 †) - (NASSARIIDAE) (FOSSIL)
- luteostoma, Nassa luteostoma W.J. Broderip & G.B. I Sowerby, 1829 - syn of: Phrontis luteostoma (W.J. Broderip & G.B. I Sowerby, 1829) - (NASSARIIDAE)
- luteostoma, Ranella luteostoma W.H. Pease, 1861 - syn of: Bursa luteostoma (W.H. Pease, 1861) - (RANELLIDAE)
- luteostoma, Tibia insulaechorab luteostoma G.F. Angas, 1878 - (ROSTELLARIIDAE)
- luteostoma, Tonna luteostoma (H.C. Küster, 1857) - (TONNIDAE)
- luteostoma, Cymbiola luteostoma G.P. Deshayes in J.B.P.A. Lamarck, 1844 - syn of: Cymbiola chrysostoma (W.J. Swainson, 1824) - (VOLUTIDAE)
- luteostoma porcellara, Tonna luteostoma porcellara F.M. Euthyme, 1885 - syn of: Tonna luteostoma (H.C. Küster, 1857) - (TONNIDAE)
- luteostomum, Tonna luteostomum H.C. Küster, 1857 - syn of: Tonna luteostoma (H.C. Küster, 1857) - (TONNIDAE)
- Luterium, syn of: Genus Cymatium P.F. Rφding, 1798 (RANELLIDAE)
- lutescena, Lataxiena lutescena Zhang & Zhang, 2014 (temporary name) - (MURICIDAE)
- lutescens, Akiodoris lutescens (L.S.R. Bergh, 1879) - (AKIODORIDIDAE)
- lutescens, Vexillum lutescens T.A. de M. Monterosato, 1879 - syn of: Pusia ebenus (J.B.P.A. Lamarck, 1811) - (COSTELLARIIDAE)
- lutescens, Rostanga lutescens (L.S.R. Bergh, 1905) - (DISCODORIDIDAE)
- lutescens, Doris lutescens S. Delle Chiaje in J.B. Vérany, 1846 - syn of: Felimare picta (Schultz in R.A. Philippi, 1836) - (DORIDIDAE)
- lutescens, Cassidula lutescens L. Pfeiffer, 1856 - (ELLOBIIDAE)
- lutescens, Batheulima lutescens L.R.L. Simone, 2002 - (EULIMIDAE)
- lutescens, Helix lutescens E.A. Rossmässler, 1837 - (HELICIDAE)
- lutescens, Helicina lutescens F. Poey, 1852 - syn of: Ustronia acuminata (G.T. Velazquez in F. Poey, 1852) - (HELICINIDAE)
- lutescens, Hermaea lutescens A. da Costa, 1866 - syn of: Placida dendritica (J. Alder & A. Hancock, 1843) - (HERMAEIDAE)
- lutescens, Mitra lutescens J.B.P.A. Lamarck, 1811 - syn of: Mitra cornicula (C. Linnaeus, 1758) - (MITRIDAE)
- lutescens, Nassa lutescens E. Réquien, 1848 - syn of: Cyclope neritea (C. Linnaeus, 1758) - (NASSARIIDAE)
- lutescens, Mexcyclotus lutescens L. Pfeiffer, 1851 - syn of: Dicrista cooperi (G.W. Tryon, 1863) - (NEOCYCLOTIDAE)
- lutescens, Austroborus lutescens (P.P. King & W.J. Broderip, 1832) - (STROPHOCHEILIDAE)
- lutescens, Terebra lutescens W.H. Dall, 1889 - syn of: Terebra protexta T.A. Conrad, 1845 - (TEREBRIDAE)
- lutescens, Terebra lutescens E.A. Smith, 1873 - syn of: Terebra protexta T.A. Conrad, 1845 - (TEREBRIDAE)
- lutescens, Pleurotoma lutescens L.A. Reeve, 1846 - (TURRIDAE)
- Lutetia, Genus Lutetia Deshayes, 1858 (LUTETIIDAE) (FOSSIL)
- lutetiana, Dreissena lutetiana É.A.A. Locard, 1893 - syn of: Dreissena polymorpha (P.S. Pallas, 1771) - (DREISSENIDAE)
- lutetiana, Bouryia lutetiana (M. Glibert, 1962 †) - (POMATIOPSIDAE) (FOSSIL)
- lutetiana, Succinea lutetiana J.F. Mabille, 1870 - syn of: Succinella oblonga (J.P.R. Draparnaud, 1801) - (SUCCINEIDAE)
- lutetiana, Anodonta lutetiana J.R. Bourguignat, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- lutetianus, Theodoxus lutetianus Monfort, 1810 † - (NERITIDAE) (FOSSIL)
- lutetianus, Theodoxus lutetianus P.D. Montfort, 1810 - syn of: Theodoxus fluviatilis (C. Linnaeus, 1758) - (NERITIDAE)
- lutetianus, Pomatias lutetianus J.R. Bourguignat, 1869 - syn of: Pomatias elegans (O.F. Müller, 1774) - (POMATIIDAE)
- Lutetiella, Genus Lutetiella Kadolsky, 2015 (HYDROBIIDAE) (FOSSIL)
- LUTETIIDAE Zhgenti, 1976 - Family (BIVALVIA-HETERODONTA-EUHETERODONTA-IMPARIDENTIA-VENERIDA) (FOSSIL)
- Lutetina, Genus Lutetina C. Vιlain, 1877 (NEOLEPTONIDAE)
- luteum, Solarium luteum J.B.P.A. Lamarck, 1822 - syn of: Philippia lutea (J.B.P.A. Lamarck, 1822) - (ARCHITECTONICIDAE)
- luteum, Farcimen obesum luteum L.O. Alcalde, 1945 - (MEGALOMASTOMIDAE)
- luteum, Platevindex luteum (C.G. Semper, 1885) - (ONCHIDIIDAE)
- luteum, Styloptygma luteum (A. Garrett, 1873) - (PYRAMIDELLIDAE)
- luteum mediterranea, Architectonica luteum mediterranea R.A. Philippi, 1853 - syn of: Philippia hybrida (C. Linnaeus, 1758) - (ARCHITECTONICIDAE)
- luteum novaehollandiae, Solarium luteum novaehollandiae R.A. Philippi, 1853 - syn of: Philippia lutea (J.B.P.A. Lamarck, 1822) - (ARCHITECTONICIDAE)
- luteus, Isoconus luteus (G.B. I Sowerby, 1833) - (CONIDAE)
- luteus, Melampus luteus (J.R.C. Quoy & J.P. Gaimard, 1832) - (ELLOBIIDAE)
- luteus, Fusolatirus luteus M.A. Snyder & P. Bouchet, 2006 - (FASCIOLARIIDAE)
- luteus, Phanerophthalmus luteus (J.R.C. Quoy & J.P. Gaimard, 1833) - (HAMINOEIDAE)
- luteus, Callistoctopus luteus (M. Sasaki, 1929) - (OCTOPODIDAE)
- luteus, Polypus luteus M. Sasaki, 1929 - syn of: Callistoctopus luteus (M. Sasaki, 1929) - (OCTOPODIDAE)
- luteus, Liguus fasciatus luteus C.T. Simpson, 1920 - (ORTHALICIDAE)
- luteus, Plesiotrochus luteus (A.A. Gould, 1861) - (PLESIOTROCHIDAE)
- luteus, Megangulus luteus (W. Wood, 1828 †) - (TELLINIDAE) (FOSSIL)
- luteus, Cautor luteus (H.H. Suter, 1908) - (TRIPHORIDAE)
- luteus, Trochus luteus J.R.C. Quoy & J.P. Gaimard, 1834 - syn of: Bembicium melanostomum (J.F. Gmelin, 1791) - (TROCHIDAE)
- luteus, Unio luteus I. Lea, 1856 - syn of: Parreysia corrugata (O.F. Müller, 1774) - (UNIONIDAE)
- luteus richardsae, Conus luteus richardsae D. Röckel & W. Korn, 1992 - syn of: Isoconus richardsae (W. Korn & D. Röckel, 1992) - (CONIDAE)
- Luteuthis, Genus Luteuthis O'Shea, 1999 (OPISTHOTEUTHIDAE)
- luthei, Ellesmeroceras luthei Ulrich & al., 1944 † - (ELLESMEROCERATIDAE) (FOSSIL)
- lutheri, Probeloceras lutheri (A.H. Clarke, 1885 †) - (ACANTHOCLYMENIIDAE) (FOSSIL)
- lutheri, Goniatites lutheri A.H. Clarke, 1885 † - syn of: Probeloceras lutheri (A.H. Clarke, 1885 †) - (GONIATITIDAE) (FOSSIL)
- lutheri, Platyostoma lutheri A.H. Clarke, 1904 † - (PLATYCERATIDAE) (FOSSIL)
- luticola, Corbula luticola A. Valenciennes, 1846 - syn of: Sphenia luticola (A. Valenciennes, 1846) - (CORBULIDAE)
- luticola, Cylichna luticola (C.B. Adams, 1852) - (CYLICHNIDAE)
- luticola, Bornia luticola A. Valenciennes, 1846 - syn of: Kellia suborbicularis (G. Montagu, 1803) - (KELLIIDAE)
- luticola, Sphenia luticola (A. Valenciennes, 1846) - (MYIDAE)
- luticola, Thracia luticola A. Valenciennes in A. Dupetit-Thouars, 1846 - syn of: Thracia curta T.A. Conrad, 1837 - (THRACIIDAE)
- luticola, Glyphyalinia luticola L.R. Hubricht, 1966 - (ZONITIDAE)
- luticolens, Ischnochiton luticolens A.F.B. Hull, 1923 - (ISCHNOCHITONIDAE)
- lutiensis, Hormotoma lutiensis Cullison, 1944 † - (MURCHISONIIDAE) (FOSSIL)
- Lutilodix, Genus Lutilodix T. Iredale, 1945 (HELICARIONIDAE)
- Lutima, Genus Lutima (OPISTHOBRANCHIA (unassigned)) (FOSSIL)
- lutkeana, Oenopota lutkeana A. Krause, 1885 - (MANGELIIDAE)
- lutkeana, Oenopota lutkeana W.H. Dall, 1919 - syn of: Oenopota lutkeana A. Krause, 1885 - (MANGELIIDAE)
- lutkevitchi, Pachymyonia lutkevitchi Astafieva-Urbaitis, 1976 † - syn of: Myomedia carinata (Morris, 1845 †) - (VACUNELLIDAE) (FOSSIL)
- lutosa, Eburna lutosa J.B.P.A. Lamarck, 1816 - syn of: Babylonia lutosa (J.B.P.A. Lamarck, 1816) - (ANCILLARIIDAE)
- lutosa, Babylonia lutosa (J.B.P.A. Lamarck, 1816) - (BABYLONIIDAE)
- lutosa, Cyclocardia lutosa L.S. Zhidkova & Krishtofovich, 1984 † - (CARDITIDAE) (FOSSIL)
- lutosa, Palaeoneilo lutosa Talent, 1963 † - (MALLETIIDAE) (FOSSIL)
- lutosa, Syrnola lutosa J. Marwick, 1931 † - (PYRAMIDELLIDAE) (FOSSIL)
- lutosa, Finella lutosa (C. Hedley, 1914) - (SCALIOLIDAE)
- lutosa, Succinea lutosa H.A. Pilsbry, 1926 - (SUCCINEIDAE)
- lutosa, Melanoides lutosa (A.A. Gould, 1847) - (THIARIDAE)
- lutosa, Eotrigonia semiundulata lutosa (G.B. Pritchard, 1903 †) - (TRIGONIIDAE) (FOSSIL)
- lutosa, Paludina lutosa L.F.A. Souleyet, 1852 - (VIVIPARIDAE)
- lutosa, Athleta lutosa (H.J. Koch, 1948) - (VOLUTIDAE)
- lutosa emmanuelae, Athleta lutosa emmanuelae (J. Rosso, 1985) - (VOLUTIDAE)
- lutosinula, Cernuella lutosinula É.A.A. Locard - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- lutosum, Cerithium lutosum K.T. Menke, 1828 - (CERITHIIDAE)
- lutosum variabile, Cerithium lutosum variabile C.B. Adams, 1845 - (CERITHIIDAE)
- lutosus, Clanculus lutosus B.F. Kensley & Pether, 1986 † - (TROCHIDAE) (FOSSIL)
- lutracana, Sericata lutracana H. Nordsieck, 1977 - (CLAUSILIIDAE)
- lutrae, Valenciennius lutrae Taktakishvili, 1967 † - (LYMNAEIDAE) (FOSSIL)
- Lutraria, Genus Lutraria J.B.P.A. Lamarck, 1799 (MACTRIDAE)
- lutraria, Lutraria lutraria (C. Linnaeus, 1767) - (MACTRIDAE)
- lutraria, Mya lutraria C. Linnaeus, 1758 - syn of: Lutraria lutraria (C. Linnaeus, 1767) - (MYIDAE)
- lutraria, Agaronia lutraria P.F. Röding, 1798 - syn of: Agaronia lutaria (P.F. Röding, 1798) - (OLIVIDAE)
- lutraria, Myocaris lutraria Salter, 1864 † - (TECHNOPHORIDAE) (FOSSIL)
- lutraria capensis, Lutraria lutraria capensis L.A. Reeve, 1854 - syn of: Lutraria lutraria (C. Linnaeus, 1767) - (MACTRIDAE)
- lutraria panormensis, Lutraria lutraria panormensis A. De Gregorio, 1885 - syn of: Lutraria lutraria (C. Linnaeus, 1767) - (MACTRIDAE)
- lutrarius, Exomilus lutrarius C. Hedley, 1907 - syn of: Exomilus lutaria (C. Hedley, 1907) - (RAPHITOMIDAE)
- Lutricola, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- Lutricola, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- Lutricularia, syn of: Genus Abra J.B.P.A. Lamarck, 1818 (SEMELIDAE)
- Lutromactra, Subgenus Lutraria (Lutromactra) Iredale, 1929 (MACTRIDAE) (FOSSIL)
- Lutrophora, syn of: Genus Lutraria J.B.P.A. Lamarck, 1799 (MACTRIDAE)
- lutruanus, Conomurex lutruanus L.W. Dillwyn, 1823 - syn of: Conomurex decorus (P.F. Röding, 1798) - (STROMBIDAE)
- lutulenta, Alia lutulenta W.H. Dall, 1919 - syn of: Alia gausapata (A.A. Gould, 1850) - (COLUMBELLIDAE)
- lutulenta, Nitidella lutulenta W.H. Dall, 1919 - syn of: Alia gausapata (A.A. Gould, 1850) - (COLUMBELLIDAE)
- lutulenta, Cernuella lutulenta É.A.A. Locard, 1899 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- lutulenta, Peasiella lutulenta D.G. Reid, 1989 - (LITTORINIDAE)
- lutulenta, Pseudoliva lutulenta B.F. Kensley & Pether, 1986 † - (PSEUDOLIVIDAE) (FOSSIL)
- lutulenta, Succinea lutulenta C.M.F. Ancey, 1889 - (SUCCINEIDAE)
- lutulentum, Cerithium lutulentum L.C. Kiener, 1842 - syn of: Zeacumantus lutulentus (L.C. Kiener, 1842) - (CERITHIIDAE)
- lutulentus, Zeacumantus lutulentus (L.C. Kiener, 1842) - (BATILLARIIDAE)
- lutulentus, Hyridella lutulentus H.H. Suter, 1913 - syn of: Cucumerunio websteri (C.T. Simpson, 1902) - (HYRIIDAE)
- lutulentus, Unio lutulentus A.A. Gould, 1850 - syn of: Echyridella menziesii (J.E. Gray in J.K.E. Dieffenbach, 1843) - (UNIONIDAE)
- lutulentus, Unio lutulentus G.B. Sowerby, 1868 - syn of: Echyridella menziesii (J.E. Gray in J.K.E. Dieffenbach, 1843) - (UNIONIDAE)
- lutulentus, Unio lutulentus L.A. Reeve, 1865 - syn of: Cucumerunio websteri (C.T. Simpson, 1902) - (UNIONIDAE)
- lutuosa, Strigatella lutuosa L.W. Dillwyn, 1817 - syn of: Mitra nodulosa (J.F. Gmelin, 1791) - (MITRIDAE)
- lutuosum, Cerithium lutuosum K.T. Menke, 1828 - syn of: Cerithium lutosum K.T. Menke, 1828 - (CERITHIIDAE)
- lutzelburgi, Streptaxis lutzelburgi E. Weber, 1925 - (STREPTAXIDAE)
- lutzi, Gundlachia lutzi B. Walker, 1925 - (PLANORBIDAE)
- luvilana, Hydrobia luvilana G. Mandahl-Barth, 1973 - (HYDROBIIDAE)
- lux, Tellina lux S.C.T. Hanley, 1844 - (TELLINIDAE)
- lux, Hendersoniella lux F.G. Thompson & L.R. Correa-Sandoval, 1994 - (UROCOPTIDAE)
- lux chonomphix, Hendersoniella lux chonomphix F.G. Thompson & L.R. Correa-Sandoval, 1994 - (UROCOPTIDAE)
- luxemburgensis, Anoptychia luxemburgensis J. Gründel, 2012 † - (ANOPTYCHIIDAE) (FOSSIL)
- luxensis, Abida luxensis P. Fagot, 1902 - syn of: Abida secale andorrensis J.R. Bourguignat, 1863 - (CHONDRINIDAE)
- Luxitrigonia, Genus Luxitrigonia Guo Fu-xiang, 1985 (MYOPHORELLIDAE) (FOSSIL)
- luxurians, Iglica luxurians (L. Kušcer, 1932) - (HYDROBIIDAE)
- luxurians, Pecten luxurians H.C. Küster in H.C. Küster & W. Kobelt, 1888 - syn of: Gloripallium maculosum (P. Forsskål in C. Niebuhr, 1775) - (PECTINIDAE)
- luxurians, Pupilla luxurians O.W.H. Reinhardt, 1877 - syn of: Pupilla triplicata (S.E. Studer, 1820) - (PUPILLIDAE)
- luxurians, Unio luxurians H.C. Küster, 1854 - syn of: Unio crassus L. Philipsson in A. Retzius, 1788 - (UNIONIDAE)
- Luxuridacna, Genus Luxuridacna Papaianopol, 1980 (CARDIIDA (unassigned)) (FOSSIL)
- luxuriosa, Chromodoris luxuriosa L.S.R. Bergh, 1877 - syn of: Mexichromis lemniscata (J.R.C. Quoy & J.P. Gaimard, 1832) - (CHROMODORIDIDAE)
- luxuriosum, Articheilus luxuriosum Ruzhentsev & Shimanskiy, 1954 † - (MOSQUOCERATIDAE) (FOSSIL)
- luxuriosus, Euphemites luxuriosus E.L. Yochelson, 1960 † - (EUPHEMITIDAE) (FOSSIL)
- luxus, Periapta luxus T.A. Okutani, 1964 - syn of: Periapta polygyrella (P. Fischer in É.A.A. Locard, 1897) - (EPITONIIDAE)
- luymesi, Cuspidaria luymesi J. Knudsen, 2005 - (CUSPIDARIIDAE)
- luyorensis, Streptaulus luyorensis H.H. Godwin-Austen, 1917 - (PUPINIDAE)
- luzi, Cysticopsis luzi (R. Arango in F. Poey, 1868) - (CEPOLIDAE)
- luziensis, Conus luziensis E. Rolán, D. Röckel & A. Monteiro, 1983 - syn of: Africonus grahami luziensis E. Rolán, D. Röckel & A. Monteiro, 1983 - (CONIDAE)
- luziensis, Africonus grahami luziensis E. Rolán, D. Röckel & A. Monteiro, 1983 - (CONIDAE)
- luzmarina, Volvarina luzmarina J. Espinosa, J.A. Ortea & G. Pérez-Dionis, 2014 - (MARGINELLIDAE)
- luzonensis, Ferrocina luzonensis Glover & J.D. Taylor, 2016 - (LUCINIDAE)
- luzonensis, Teredo luzonensis P. Bartsch, 1927 - (TEREDINIDAE)
- Luzonia, Subgenus Cuspidaria (Luzonia) W.H. Dall & E.A. Smith in W.H. Dall, 1890 (CUSPIDARIIDAE)
- luzonica, Pila luzonica L.A. Reeve, 1856 - (AMPULLARIIDAE)
- luzonica, Anadara luzonica L.A. Reeve, 1844 - syn of: Anadara gubernaculum (L.A. Reeve, 1844) - (ARCIDAE)
- luzonica, Arca luzonica L.A. Reeve, 1844 - syn of: Anadara gubernaculum (L.A. Reeve, 1844) - (ARCIDAE)
- luzonica, Glyptobensonia luzonica (O.F. von Möllendorff) - (ARIOPHANTIDAE)
- luzonica, Assiminea habei luzonica R.T. Abbott, 1958 - (ASSIMINEIDAE)
- luzonica, Calocochlia luzonica G.B. I Sowerby, 1842 - (BRADYBAENIDAE)
- luzonica, Lepidozona luzonica (G.B. II Sowerby, 1842) - (ISCHNOCHITONIDAE)
- luzonica, Mactra luzonica L.A. Reeve, 1854 - (MACTRIDAE)
- luzonica, Septaria luzonica (C.A. Récluz, 1841) - (NERITIDAE)
- luzonica, Patella luzonica L.A. Reeve, 1855 - syn of: Cellana radiata (I. von Born, 1778) - (PATELLIDAE)
- luzonica, Comitas luzonica A.W.B. Powell, 1969 - (PSEUDOMELATOMIDAE)
- luzonica, Leptomya luzonica H.B. Preston, 1906 - syn of: Leptomya trigonalis (A. Adams & L.A. Reeve, 1850) - (SEMELIDAE)
- luzonica, Siphonaria luzonica L.A. Reeve, 1856 - (SIPHONARIIDAE)
- luzonica, Gemmula luzonica (A.W.B. Powell, 1964) - (TURRIDAE)
- luzonica, Pinguigemmula luzonica (A.W.B. Powell, 1964) - syn of: Gemmula luzonica (A.W.B. Powell, 1964) - (TURRIDAE)
- luzonica, Tapes luzonica G.B. II Sowerby, 1852 - syn of: Marcia hiantina (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- luzonica areolata, Calocochlia luzonica areolata W. Kobelt, 1908 - (BRADYBAENIDAE)
- luzonica fumosa, Calocochlia luzonica fumosa W. Kobelt, 1908 - (BRADYBAENIDAE)
- luzonicum, Canistrum ovoideum luzonicum (G.B. I Sowerby, 1833) - (BRADYBAENIDAE)
- luzonicum, Hypselostoma luzonicum O.F. von Möllendorff, 1888 - (HYPSELOSTOMATIDAE)
- luzonicus, Chiton luzonicus G.B. II Sowerby, 1842 - syn of: Lepidozona luzonica (G.B. II Sowerby, 1842) - (CHITONIDAE)
- luzonicus, Conus luzonicus G.B. II Sowerby, 1858 - syn of: Chelyconus purpurascens (G.B. II Sowerby, 1833) - (CONIDAE)
- luzonicus, Conus luzonicus C.H. Hwass, 1792 - syn of: Chelyconus ermineus (I. von Born, 1778) - (CONIDAE)
- luzonicus, Ensis luzonicus R.W. Dunker, 1862 - syn of: Ensis macha (Molina, 1782) - (PHARIDAE)
- luzonicus, Solen luzonicus (R.W. Dunker, 1862) - (SOLENIDAE)
- luzonicus, Thyasira luzonicus (E.A. Smith, 1895) - (THYASIRIDAE)
- lyaiolense, Manticoceras lyaiolense Ljaschenko, 1957 † - (GEPHUROCERATIDAE) (FOSSIL)
- lyallensis, Kidderia lyallensis H.J. Finlay, 1926 - syn of: Kidderia costata N.H. Odhner, 1924 - (CYAMIIDAE)
- lyallensis, Montfortula lyallensis M.K. Mestayer, 1928 - syn of: Montfortula rugosa (J.R.C. Quoy & J.P. Gaimard, 1834) - (FISSURELLIDAE)
- lyallensis, Neoguraleus lyallensis (R. Murdoch, 1905) - (MANGELIIDAE)
- lyallensis, Plaxiphora lyallensis M.K. Mestayer, 1921 - syn of: Plaxiphora caelata (L.A. Reeve, 1847) - (MOPALIIDAE)
- lyallensis, Sukashitrochus lyallensis (H.J. Finlay, 1926) - (SCISSURELLIDAE)
- lyallensis tenebrosum, Neoguraleus lyallensis tenebrosum (A.W.B. Powell, 1926) - (MANGELIIDAE)
- lyalli, Turbonilla lyalli W.H. Dall & P. Bartsch, 1907 - (PYRAMIDELLIDAE)
- lyalliana, Merelina lyalliana (H.H. Suter, 1898) - (RISSOIDAE)
- lyallii, Nucula lyallii W. Baird, 1863 - syn of: Acila castrensis (R.B. Hinds, 1843) - (NUCULIDAE)
- Lyapinella, Genus Lyapinella Zakharov, 1970 (ASTARTIDAE) (FOSSIL)
- lybica, Eremina lybica H.R. Kaltenbach, 1942 - (HELICIDAE)
- lybiense, Cerithium vulgatum lybiense F. Nordsieck, 1974 - (CERITHIIDAE)
- lybisonis, Oxychilus lybisonis M. Paulucci, 1879 - syn of: Oxychilus oppressus (R.J. Shuttleworth, 1877) - (OXYCHILIDAE)
- lycabetica, Trochoidea lycabetica A. Letourneux in É.A.A. Locard, 1894 - syn of: Trochoidea pyramidata (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- lycaonica, Jaminia lycaonica R. Sturany, 1904 - (ENIDAE)
- lycettea, Ceritella lycettea (Buvignier) † - (CERITELLIDAE) (FOSSIL)
- lycettea, Purpuroidea lycettea Hudleston & Wilson † - (PURPUROIDEIDAE) (FOSSIL)
- lycetti, Scurriopsis lycetti (Cossmann) † - (ACMAEIDAE) (FOSSIL)
- lycetti, Globularia lycetti L.R. Cox & W.J. Arkell, 1950 † - (AMPULLINIDAE) (FOSSIL)
- lycetti, Islipia lycetti Cox & Arkell † - (ARCHAEOGASTROPODA (unassigned)) (FOSSIL)
- lycetti, Pronoella lycetti A.E.M. Cossmann, 1900 † - (ARCTICIDAE) (FOSSIL)
- lycetti, Trigonopis lycetti Bigot, 1895 † - (ASTARTIDAE) (FOSSIL)
- lycetti, Brachytrema lycetti Cox & Arkell † - (BRACHYTREMATIDAE) (FOSSIL)
- lycetti, Protocardia lycetti (Rollier †) - (CARDIIDAE) (FOSSIL)
- lycetti, Lucina lycetti A.E.M. Cossmann, 1900 - (LUCINIDAE)
- lycetti, Lycetticeras lycetti W.J. Arkell, 1954 † - (MACROCEPHALITIDAE) (FOSSIL)
- lycetti, Lithophaga lycetti J.J.F. Whiteaves, 1861 † - (MYTILIDAE) (FOSSIL)
- lycetti, Meleagrinella lycetti (Rollier, 1914 †) - (OXYTOMIDAE) (FOSSIL)
- lycetti, Parallelodon lycetti (Moore) † - (PARALLELODONTIDAE) (FOSSIL)
- lycetti, Pleurotomaria lycetti d'Orbigny † - (PLEUROTOMARIIDAE) (FOSSIL)
- lycetti, Corbicella lycetti L.R. Cox & W.J. Arkell, 1948 † - (TANCREDIIDAE) (FOSSIL)
- lycetti, Trapezium lycetti A.E.M. Cossmann, 1907 - (TRAPEZIDAE)
- lycetti, Trigonia lycetti Walford, 1885 † - (TRIGONIIDAE) (FOSSIL)
- lycetti, Trochotoma lycetti Moore † - (TROCHOTOMIDAE) (FOSSIL)
- Lycettia, Genus Lycettia Cox , 1937 (MYTILIDAE) (FOSSIL)
- Lycetticeras, Genus Lycetticeras Arkell, 1955 (MACROCEPHALITIDAE) (FOSSIL)
- lycettii, Amberleya lycettii Münster † - (EUCYCLIDAE) (FOSSIL)
- Lycettitrigonia, Genus Lycettitrigonia M.R. Cooper, 2015 (RUTITRIGONIIDAE) (FOSSIL)
- lychnia, Panamurex lychnia (Gardner, 1947 †) - (MURICIDAE) (FOSSIL)
- lychnidicus, Gyraulus lychnidicus P. Hesse, 1928 - (PLANORBIDAE)
- Lychnoceras, Genus Lychnoceras Zhuravleva, 1974 (ONCOCERIDA (unassigned)) (FOSSIL)
- lychnorum, Bostryx lychnorum (G.B. I Sowerby, 1838) - (BULIMULIDAE)
- lychnucha, Helicigona lychnucha É.A.A. Locard, 1868 - syn of: Helicigona lapicida (C. Linnaeus, 1758) - (HELICIDAE)
- lychnuchus, Dentellaria lychnuchus (O.F. Müller, 1774) - (PLEURODONTIDAE)
- Lychnus, Genus Lychnus Matheron, 1832 (ANADROMIDAE) (FOSSIL)
- lycia, Isaurica lycia (E.C. Von Martens, 1889) - (HELICIDAE)
- lyciaca, Pleurotomoides lyciaca (L.A. Reeve, 1844) - (CLATHURELLIDAE)
- lyciaca, Pleurotoma lyciaca L.A. Reeve, 1844 - syn of: Pleurotomoides lyciaca (L.A. Reeve, 1844) - (TURRIDAE)
- lyciacus, Trochus lyciacus E. Forbes, 1844 - syn of: Gibbula albida (J.F. Gmelin, 1791) - (TROCHIDAE)
- lycica, Albinaria lycica H. Nordsieck, 1993 - (CLAUSILIIDAE)
- lycica, Isaurica lycica E.C. Von Martens, 1889 - syn of: Isaurica lycia (E.C. Von Martens, 1889) - (HELICIDAE)
- lycica, Staja lycica (P. Oppenheim, 1919 †) - (HYDROBIIDAE) (FOSSIL)
- lycica, Gillia lycica P. Oppenheim, 1919 † - syn of: Staja lycica (P. Oppenheim, 1919 †) - (LITHOGLYPHIDAE) (FOSSIL)
- lycica phaselis, Albinaria lycica phaselis H. Nordsieck, 1993 - (CLAUSILIIDAE)
- lycicus, Buliminus lycicus L. Pfeiffer, 1846 - (ENIDAE)
- lycidas, Sepia lycidas J.E. Gray, 1849 - (SEPIIDAE)
- lyckholmiensis, Lophospira lyckholmiensis Teichert, 1932 † - (LOPHOSPIRIDAE) (FOSSIL)
- Lyckholmoceras, Genus Lyckholmoceras Teichert, 1930 (DIESTOCERATIDAE) (FOSSIL)
- lycocephalum, Gyroscala lycocephalum B.F. Kensley & Pether, 1986 † - (EPITONIIDAE) (FOSSIL)
- lycodes, Naesiotus lycodes W.H. Dall, 1917 - syn of: Naesiotus lycodus W.H. Dall, 1917 - (BULIMULIDAE)
- lycodus, Naesiotus lycodus W.H. Dall, 1917 - (BULIMULIDAE)
- lycoris, Karakaschiceras lycoris (H.A. Leanza & Giovine, 1949 †) - (NEOCOMITIDAE) (FOSSIL)
- LYCOTEUTHIDAE Pfeffer, 1908 - Family (CEPHALOPODA-COLEOIDEA-DECAPODIFORMES-OEGOPSIDA)
- Lycoteuthis, Genus Lycoteuthis G.J. Pfeffer, 1900 (LYCOTEUTHIDAE)
- lycum, Oncoceras lycum J.W. Hall, 1861 † - (ONCOCERATIDAE) (FOSSIL)
- lycurgus, Lepidozona lycurgus W.H. Dall, 1919 - (ISCHNOCHITONIDAE)
- lycurgus, Leptochiton lycurgus W.H. Dall, 1919 - syn of: Leptochiton nexus P.P. Carpenter, 1864 - (LEPTOCHITONIDAE)
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