- leqatai, Turbonilla leqatai A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- lequios, Iheyaspira lequios T.A. Okutani, T. Sasaki & E. Tsuchida, 2000 - (SKENEIDAE)
- lequois, Iheyaspira lequois T.A. Okutani, T. Sasaki & E. Tsuchida, 2000 - syn of: Iheyaspira lequios T.A. Okutani, T. Sasaki & E. Tsuchida, 2000 - (SKENEIDAE)
- lerami, Rheiacardia lerami Rogalla, 2007 † - (HIPPOCARDIIDAE) (FOSSIL)
- lerchi, Pholadomya lerchi J. Hill, 1893 † - syn of: Lycettitrigonia lerchi (J. Hill, 1893 †) - (PHOLADOMYIDAE) (FOSSIL)
- lerchi, Lycettitrigonia lerchi (J. Hill, 1893 †) - (RUTITRIGONIIDAE) (FOSSIL)
- lerema, Teinostoma lerema H.A. Pilsbry & J.T.L. McGinty, 1945 - (TORNIDAE)
- lerichei, Turbonilla lerichei (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- lermaensis, Ucumaropsis lermaensis P. Sánchez, 2005 † - (UCUMARIIDAE) (FOSSIL)
- lermondi, Caecum lermondi W.H. Dall, 1924 - syn of: Meioceras nitidum (W. Stimpson, 1851) - (CAECIDAE)
- lermondi, Pisidium lermondi V. Sterki, 1913 - syn of: Pisidium nitidum L. Jenyns, 1832 - (SPHAERIIDAE)
- lermondi, Tetrentodon lermondi C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- lermontovae, Novitatus lermontovae A.V. Sysoev, 1968 † - (NOVITATIDAE) (FOSSIL)
- lernaea, Candidula lernaea B. Hausdorf, 1991 - (HYGROMIIDAE)
- lerneri, Cerion eximium lerneri W.J. Clench, 1956 - (CERIONIDAE)
- leroii, Limicolaria leroii C.R. Böttger & F. Haas, 1913 - (ACHATINIDAE)
- lerosiensis, Albinaria lerosiensis (L. Pfeiffer, 1841) - (CLAUSILIIDAE)
- lerosina, Vitrea sossellai lerosina P.L. Reischütz, 1985 - (PRISTILOMATIDAE)
- Leroya, syn of: Genus Lanistes P.D. Montfort, 1810 (AMPULLARIIDAE)
- Leroyceras, Genus Leroyceras Vermeulen, 2006 † (HEMIHOPLITIDAE) (FOSSIL)
- leroyi, Costoanachis leroyi F.S. MacNeil, 1960 † - (COLUMBELLIDAE) (FOSSIL)
- leroyi, Cyproglobina leroyi Dolin & Aguerre, 2016 † - (PEDICULARIIDAE) (FOSSIL)
- leroyi, Physopsis leroyi A. Grandidier, 1887 - (PLANORBIDAE)
- leroyi, Stenogyra leroyi J.R. Bourguignat, 1889 - (SUBULINIDAE)
- leroyi, Pseudoglessula leroyi M. Connolly - (SUBULINIDAE)
- lersiana, Cernuella lersiana P. Fagot, 1874 - syn of: Cernuella neglecta (J.P.R. Draparnaud, 1805) - (HYGROMIIDAE)
- leruthi, Bythiospeum leruthi (C.R. Böttger, 1940) - (HYDROBIIDAE)
- leruthi, Paladilhiopsis leruthi C.R. Böttger, 1940 - syn of: Bythiospeum leruthi (C.R. Böttger, 1940) - (MOITESSIERIIDAE)
- lesbarritzensis, Latirulus lesbarritzensis P. Lozouet, 2015 - (FASCIOLARIIDAE)
- lesbarritzensis, Crassispira lesbarritzensis P. Lozouet, 2015 - (PSEUDOMELATOMIDAE)
- lesbia, Eulima lesbia G.F. Angas, 1871 - syn of: Eulima acutissima (G.B. II Sowerby, 1866) - (EULIMIDAE)
- lescaensis, Johaniceramus longus lescaensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- lescallei, Cysticopsis lescallei (J. Gundlach in L. Pfeiffer, 1859) - (CEPOLIDAE)
- lescallei, Brachypodella lescallei C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- lescarboti, Pachystrophia lescarboti (A.H. Clarke, 1908 †) - (HOLOPEIDAE) (FOSSIL)
- lescarboti, Trochonema lescarboti A.H. Clarke, 1908 † - syn of: Pachystrophia lescarboti (A.H. Clarke, 1908 †) - (TROCHONEMATIDAE) (FOSSIL)
- leschenaultii, Octopus leschenaultii D'Orbigny, 1826 - syn of: Callistoctopus macropus (A. Risso, 1826) - (OCTOPODIDAE)
- lescherae, Sorholia lescherae (H.D. Boeters, 1981) - (MOITESSIERIIDAE)
- leschkei, Tomellana leschkei (H. Strebel, 1912) - (CLAVATULIDAE)
- leschkei, Sculptaria leschkei E. Degner, 1922 - (SCULPTARIIDAE)
- leseuri, Trochus leseuri P. Fischer, 1877 - syn of: Prothalotia lehmanni (K.T. Menke, 1843) - (TROCHIDAE)
- lesginensis, Cordiceramus lesginensis Dobrov & Pavlova, 1959 † - (INOCERAMIDAE) (FOSSIL)
- leshanensis, Bakevellia leshanensis C. Chen, 1976 † - (BAKEVELLIIDAE) (FOSSIL)
- lesinensis, Medora lesinensis (H.C. Küster, 1847) - (CLAUSILIIDAE)
- lesinensis dimorpha, Medora lesinensis dimorpha (C.A. Westerlund, 1881) - (CLAUSILIIDAE)
- lesleyae, Placostylus ambagiosus lesleyae A.W.B. Powell, 1947 - (BOTHRIEMBRYONTIDAE)
- lesleyae, Corilla lesleyae G.A.S. Barnacle, 1959 - (CORILLIDAE)
- leslianus, Aeolidia leslianus W. Macgillivray, 1843 - syn of: Aeolidia papillosa (C. Linnaeus, 1761) - (AEOLIDIIDAE)
- leslieboschae, Lyria leslieboschae (W.K. Emerson & W.E. Sage, 1986) - (VOLUTIDAE)
- leslieboschae, Indolyria leslieboschae W.K. Emerson & W.E. Sage, 1986 - syn of: Lyria leslieboschae (W.K. Emerson & W.E. Sage, 1986) - (VOLUTIDAE)
- lesliei, Hoffmannola lesliei (R.E.C. Stearns, 1892) - (ONCHIDIIDAE)
- lesliense, Epistroboceras lesliense Niko & Mapes, 2007 † - (TRIGONOCERATIDAE) (FOSSIL)
- lesliensis, Ctenobactrites lesliensis Mapes, 1979 † - (BACTRITIDAE) (FOSSIL)
- lesnei, Cleopatra lesnei J. Germain, 1935 - (PALUDOMIDAE)
- Lesperonia, Genus Lesperonia Tournouer, 1874 † (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- lessensis, Tortigulella lessensis H.A. Pilsbry, 1919 - (STREPTAXIDAE)
- lessensis, Trochonanina lessensis (H.A. Pilsbry, 1919) - (UROCYCLIDAE)
- lessepsiana, Strombina lessepsiana J. Brown & H.A. Pilsbry, 1911 † - (COLUMBELLIDAE) (FOSSIL)
- lessepsiana, Lithophaga lessepsiana (L.L. Vaillant, 1865) - (MYTILIDAE)
- lessingae, Gibberula lessingae J.A. Ortea, 2015 - (CYSTISCIDAE)
- lessinianum, Himantoceras lessinianum Faraoni & al., 1997 † - (HIMANTOCERATIDAE) (FOSSIL)
- lessinica, Chondrina avenacea lessinica (G.B. Adami, 1885) - (CHONDRINIDAE)
- lessonae, Euxina lessonae (A. Issel, 1865) - (CLAUSILIIDAE)
- lessonae, Vitrea lessonae N. Pini, 1884 - syn of: Vitrea diaphana (S.E. Studer, 1820) - (PRISTILOMATIDAE)
- lessonae, Gyrineum lessonae L.M.D. Bellardi, 1873 † - (RANELLIDAE) (FOSSIL)
- lessonae, Valvata lessonae F. Sacco, 1886 † - (VALVATIDAE) (FOSSIL)
- lessonae occidentalis, Gyrineum lessonae occidentalis A.E.M. Cossmann & M.A. Peyrot, 1923 † - (RANELLIDAE) (FOSSIL)
- lessoni, Aplysia lessoni P.C.A.S.L. Rang, 1828 - (APLYSIIDAE)
- lessoni, Figuladra incei lessoni (L. Pfeiffer, 1846) - (CAMAENIDAE)
- lessoni, Dentalium lessoni G.P. Deshayes, 1825 - (DENTALIIDAE)
- lessoni, Diplodon lessoni H.H. Suter, 1905 - syn of: Echyridella menziesii (J.E. Gray in J.K.E. Dieffenbach, 1843) - (HYRIIDAE)
- lessoni, Myxas lessoni G.P. Deshayes, 1830 - (LYMNAEIDAE)
- lessoni, Gari lessoni (H.M.D. de Blainville, 1826) - (PSAMMOBIIDAE)
- lessoni, Gibbula lessoni B.C.M. Payraudeau, 1826 - syn of: Gibbula divaricata (C. Linnaeus, 1758) - (TROCHIDAE)
- lessoni, Unio lessoni H.C. Küster, 1855 - syn of: Hyridella australis (J.B.P.A. Lamarck, 1819) - (UNIONIDAE)
- Lessonia, syn of: Genus Lessonina Y.I. Starobogatov, 1976 (ONCHIDIIDAE)
- Lessonia, syn of: Genus Lessonina Y.I. Starobogatov, 1976 (ONCHIDIIDAE)
- lessoniana, Cypraea lessoniana J.P.S. Grateloup, 1840 † - (CYPRAEIDAE) (FOSSIL)
- lessoniana, Sepioteuthis lessoniana R.P. Lesson, 1830 - (LOLIGINIDAE)
- lessonii, Crepidula lessonii (W.J. Broderip, 1834) - (CALYPTRAEIDAE)
- lessonii, Donax lessonii G.P. Deshayes, 1830 - syn of: Tivela lessonii (G.P. Deshayes, 1830) - (DONACIDAE)
- lessonii, Onychoteuthis lessonii A.E.J. Férussac, 1830 - (ONYCHOTEUTHIDAE)
- lessonii, Polycera lessonii J.J. Risbec, 1953 - syn of: Polycera pruvotae J.J. Risbec, 1953 - (POLYCERIDAE)
- lessonii, Polycera lessonii D'Orbigny, 1837 - syn of: Palio dubia (G.O. Sars, 1829) - (POLYCERIDAE)
- lessonii, Siphonaria lessonii H.M.D. de Blainville, 1827 - (SIPHONARIIDAE)
- lessonii, Tivela lessonii (G.P. Deshayes, 1830) - (VENERIDAE)
- lessonii ocellata, Polycera lessonii ocellata J. Alder & A. Hancock, 1842 - syn of: Palio nothus (G. Johnston, 1838) - (POLYCERIDAE)
- Lessonina, Genus Lessonina Y.I. Starobogatov, 1976 (ONCHIDIIDAE)
- lessonothuriae, Entovalva lessonothuriae S. Kato, 1999 - (MONTACUTIDAE)
- Lesticulus, Genus Lesticulus A.A. Schileyko, 1988 (TRIGONOCHLAMYDIDAE)
- Lestoteuthis, syn of: Genus Gonatus J.E. Gray, 1849 (GONATIDAE)
- Lesuerella, syn of: Genus Lesueurilla Koken, 1898 † (LESUEURILLIDAE) (FOSSIL)
- lesuerii, Pleurobranchus lesuerii H.M.D. de Blainville, 1825 - syn of: Pleurobranchus membranaceus (G. Montagu, 1815) - (PLEUROBRANCHIDAE)
- lesueur, Pleurobranchus lesueur H.M.D. de Blainville, 1827 - syn of: Pleurobranchus membranaceus (G. Montagu, 1815) - (PLEUROBRANCHIDAE)
- lesueureanus, Bostryx lesueureanus (P.M.A. Morelet, 1860) - (BULIMULIDAE)
- lesueureanus, Bulimus lesueureanus P.M.A. Morelet, 1860 - syn of: Bostryx lesueureanus (P.M.A. Morelet, 1860) - (BULIMULIDAE)
- lesueuri, Cunearca lesueuri (W.H. Dall, 1848 †) - (ARCIDAE) (FOSSIL)
- lesueuri, Orthoceras lesueuri A.H. Clarke, 1897 † - (ORTHOCERATIDAE) (FOSSIL)
- lesueuri, Cymatiella eburnea lesueuri T. Iredale, 1929 - (RANELLIDAE)
- lesueuri, Prothalotia lesueuri (P. Fischer, 1880) - (TROCHIDAE)
- lesueuriana, Fusconaia subrotunda lesueuriana (I. Lea, 1840) - (UNIONIDAE)
- lesueurianus, Bostryx lesueurianus P.M.A. Morelet, 1860 - syn of: Bostryx lesueureanus (P.M.A. Morelet, 1860) - (BULIMULIDAE)
- lesueurianus, Unio lesueurianus I. Lea, 1840 - syn of: Fusconaia subrotunda (I. Lea, 1831) - (UNIONIDAE)
- lesueurii, Ancistrocheirus lesueurii (A.V.M.D. D'Orbigny, 1842) - (ANCISTROCHEIRIDAE)
- lesueurii, Atlanta lesueurii J.E. Gray, 1850 - (ATLANTIDAE)
- lesueurii, Atlanta lesueurii D'Orbigny, 1835 - syn of: Limacina lesueurii (A.V.M.D. D'Orbigny, 1835) - (ATLANTIDAE)
- lesueurii, Atlanta lesueurii L.F.A. Souleyet, 1852 - syn of: Atlanta lesueurii J.E. Gray, 1850 - (ATLANTIDAE)
- lesueurii, Enoploteuthis lesueurii D'Orbigny, 1842 - syn of: Ancistrocheirus lesueurii (A.V.M.D. D'Orbigny, 1842) - (ENOPLOTEUTHIDAE)
- lesueurii, Limacina lesueurii (A.V.M.D. D'Orbigny, 1835) - (LIMACINIDAE)
- lesueurii, Onychoteuthis lesueurii D'Orbigny, 1835 - syn of: Onychoteuthis banksii (W.E. Leach, 1817) - (ONYCHOTEUTHIDAE)
- lesueurii, Hebetancylus lesueurii (A.V.M.D. D'Orbigny, 1842) - (PLANORBIDAE)
- lesueurii, Firoloida lesueurii D'Orbigny, 1836 - syn of: Firoloida desmarestia C.A. Lesueur, 1817 - (PTEROTRACHEIDAE)
- Lesueurilla, Genus Lesueurilla Koken, 1898 † (LESUEURILLIDAE) (FOSSIL)
- LESUEURILLIDAE P. J. Wagner, 2002 † - Family (GASTROPODA-EOGASTROPODA [Subclass]-EUOMPHALINA [Order]-EUOMPHALOIDEA [Superfamily]) (FOSSIL)
- lesumicus, Unio lesumicus J.R. Bourguignat, 1888 - syn of: Unio pictorum (C. Linnaeus, 1758) - (UNIONIDAE)
- lesuroiti, Odostomia lesuroiti A. Peñas & E. Rolán, 1999 - (PYRAMIDELLIDAE)
- leta, Turbonilla leta P. Bartsch, 1927 - (PYRAMIDELLIDAE)
- letei, Mathilda letei J. Prkic & C. Smriglio, 2007 - (MATHILDIDAE)
- leteranense, Chondrothyrium violaceum leteranense C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- letha, Austroassiminea letha G.A. Solem, H. Girardi & G.W. Kendrick, 1982 - (ASSIMINEIDAE)
- lethiersi, Calvibembexia lethiersi Blodgett & al., 1999 † - (GOSSELETINIDAE) (FOSSIL)
- lethifera, Ampelita sepulchralis lethifera (J.C.H. Crosse & P.H. Fischer, 1890) - (ACAVIDAE)
- leti, Amphidromus laevus leti Unknown - (CAMAENIDAE)
- leticiae, Adipicola leticiae Signorelli & Crespo, 2017 - (MYTILIDAE)
- Letitia, syn of: Genus Papuina E.C. Von Martens, 1860 (CAMAENIDAE)
- letkesensis, Cerithium zeuschneri letkesensis Strausz † - (CERITHIIDAE) (FOSSIL)
- letmathensis, Dimeroclymenia letmathensis (Becker, 1997 †) - (BILOCLYMENIIDAE) (FOSSIL)
- letmathensis, Glatziella letmathensis Becker, 1997 † - syn of: Dimeroclymenia letmathensis (Becker, 1997 †) - (GLATZIELLIDAE) (FOSSIL)
- letoana, Albinaria idaea letoana H. Nordsieck, 2017 - (CLAUSILIIDAE)
- letochae, Micromelania letochae (A. Fuchs, 1873 †) - (HYDROBIIDAE) (FOSSIL)
- letochai, Mioerycina letochai (Hoernes 1859) † - (MONTACUTIDAE) (FOSSIL)
- letochana, Charpentieria stenzii letochana (P.V. Gredler, 1874) - (CLAUSILIIDAE)
- Letomola, Genus Letomola T. Iredale, 1941 (CHAROPIDAE)
- letourneauxi, Anodonta letourneauxi J.R. Bourguignat, 1864 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- letourneuxi, Achatina letourneuxi J.R. Bourguignat, 1879 - (ACHATINIDAE)
- letourneuxi, Acicula letourneuxi (J.R. Bourguignat, 1864) - (ACICULIDAE)
- letourneuxi, Lanistes letourneuxi (J.R. Bourguignat, 1879) - (AMPULLARIIDAE)
- letourneuxi, Paludinella letourneuxi T.A. de M. Monterosato, 1906 - syn of: Paludinella sicana (G.A. Brugnone, 1876) - (ASSIMINEIDAE)
- letourneuxi, Crassicantharus letourneuxi K. Fraussen & P. Stahlschmidt, 2015 - (BUCCINIDAE)
- letourneuxi, Marshallopsis letourneuxi A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- letourneuxi, Abida letourneuxi J.R. Bourguignat, 1864 - syn of: Abida partioti A.de Saint-Simon, 1848 - (CHONDRINIDAE)
- letourneuxi, Cochlostoma letourneuxi J.R. Bourguignat - (COCHLOSTOMATIDAE)
- letourneuxi, Ascalista letourneuxi K. Monsecour & D. Monsecour, 2015 - (COLUMBELLIDAE)
- letourneuxi, Corbicula letourneuxi P.M. Pallary, 1924 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- letourneuxi, Dreissena letourneuxi É.A.A. Locard, 1893 - syn of: Dreissena gallandi É.A.A. Locard, 1893 - (DREISSENIDAE)
- letourneuxi, Ovatella letourneuxi J.R. Bourguignat, 1887 - syn of: Myosotella myosotis (J.P.R. Draparnaud, 1801) - (ELLOBIIDAE)
- letourneuxi, Coniconapaeus letourneuxi (J.R. Bourguignat, 1864) - (ENIDAE)
- letourneuxi, Aetheria letourneuxi J.R. Bourguignat, 1880 - syn of: Etheria elliptica J.B.P.A. Lamarck, 1807 - (ETHERIIDAE)
- letourneuxi, Cecilioides letourneuxi J.R. Bourguignat - (FERUSSACIIDAE)
- letourneuxi, Horatia letourneuxi J.R. Bourguignat, 1887 - (HYDROBIIDAE)
- letourneuxi, Chambardia letourneuxi G. Servain, 1890 - (IRIDINIDAE)
- letourneuxi, Mutela letourneuxi G. Servain, 1890 - syn of: Mutela dubia J.F. Gmelin, 1793 - (IRIDINIDAE)
- letourneuxi, Melanopsis letourneuxi (J.R. Bourguignat, 1880) - (MELANOPSIDAE)
- letourneuxi, Microcolpia letourneuxi J.R. Bourguignat, 1884 - (MELANOPSIDAE)
- letourneuxi, Jolya letourneuxi J.R. Bourguignat, 1877 - (MYTILIDAE)
- letourneuxi, Eupera letourneuxi J.R. Bourguignat, 1883 - syn of: Eupera ferruginea (C.F.F. von Krauss, 1848) - (SPHAERIIDAE)
- letourneuxi, Abranda letourneuxi M. Huber, A. Langleit & K. Kreipl, 2015 - (TELLINIDAE)
- letourneuxi, Trivirostra letourneuxi D. Fehse & J. Grego, 2008 - (TRIVIIDAE)
- letourneuxi, Anodonta letourneuxi É.A.A. Locard, 1890 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- letourneuxi, Pseudanodonta letourneuxi J.R. Bourguignat, 1880 - syn of: Pseudanodonta middendorffi (Siemaschko, 1848) - (UNIONIDAE)
- letourneuxi, Vivipara letourneuxi J.R. Bourguignat, 1880 - syn of: Viviparus ater G.J. De Cristofori & G. Jan, 1832 - (VIVIPARIDAE)
- letourneuxi emaciata, Melanopsis letourneuxi emaciata P.M. Pallary, 1927 - (MELANOPSIDAE)
- letourneuxi mattarica, Melanopsis letourneuxi mattarica P.M. Pallary, 1911 - (MELANOPSIDAE)
- letourneuxi minor, Microcolpia letourneuxi minor J.R. Bourguignat, 1884 - syn of: Melanopsis cornea Pfeiffer, 1828 - (MELANOPSIDAE)
- letourneuxi tanousi, Phytia letourneuxi tanousi P.M. Pallary, 1912 - syn of: Myosotella myosotis (J.P.R. Draparnaud, 1801) - (ELLOBIIDAE)
- Letourneuxia, Genus Letourneuxia J.R. Bourguignat, 1886 (ARIONIDAE)
- letourneuxiana, Turrella letourneuxiana J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Daphnella letourneuxiana (J.C.H. Crosse & P.H. Fischer, 1865) - (CLATHURELLIDAE)
- letourneuxiana, Coilostele letourneuxiana J.R. Bourguignat, 1880 - syn of: Coilostele akus G. Servain, 1880 - (FERUSSACIIDAE)
- letourneuxiana, Pseudamnicola letourneuxiana (J.R. Bourguignat, 1862) - (HYDROBIIDAE)
- letourneuxiana, Xerotricha letourneuxiana J.R. Bourguignat, 1883 - syn of: Xerotricha conspurcata (J.P.R. Draparnaud, 1801) - (HYGROMIIDAE)
- letourneuxiana, Daphnella letourneuxiana (J.C.H. Crosse & P.H. Fischer, 1865) - (RAPHITOMIDAE)
- letourneuxianus, Guraleus letourneuxianus J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Daphnella letourneuxiana (J.C.H. Crosse & P.H. Fischer, 1865) - (MANGELIIDAE)
- letourneuxianus, Pleurotoma letourneuxianus J.C.H. Crosse & P.H. Fischer, 1865 - syn of: Daphnella letourneuxiana (J.C.H. Crosse & P.H. Fischer, 1865) - (TURRIDAE)
- letranensis, Cysticopsis letranensis (L. Pfeiffer, 1857) - (CEPOLIDAE)
- letrungthongi, Leptocochlea sykesi letrungthongi J. Grego & M. Szekeres, 2011 - (CLAUSILIIDAE)
- letsonae, Dentalium letsonae B. Sharp & H.A. Pilsbry, 1897 - (DENTALIIDAE)
- letsonae, Melanella letsonae H.A. Pilsbry, 1917 - (EULIMIDAE)
- letsonae, Pyramidelloides letsonae H.A. Pilsbry, 1918 - syn of: Chrystella suta (H.A. Pilsbry, 1918) - (EULIMIDAE)
- letsonae, Odostomia letsonae H.A. Pilsbry, 1918 - syn of: Chrystella suta (H.A. Pilsbry, 1918) - (PYRAMIDELLIDAE)
- letsoni, Marstonia letsoni (B. Walker, 1901) - (HYDROBIIDAE)
- letteroni, Ancylus letteroni E. Caziot, 1902 - syn of: Ancylus fluviatilis O.F. Müller, 1774 - (PLANORBIDAE)
- letticus, Unionites letticus F.A. von Quenstedt, 1852 † - (TRIGONODIDAE) (FOSSIL)
- leuca, Cylichna leuca (R.B. Watson, 1886) - (CYLICHNIDAE)
- leuca, Paradoris dubia leuca M.C. Miller, 1995 - (DISCODORIDIDAE)
- leuca, Mangelia leuca K.J. Bush, 1893 - (MANGELIIDAE)
- leuca, Mitromorpha paula leuca J.C. Verco, 1909 - (MITROMORPHIDAE)
- leuca, Turbonilla leuca K.J. Bush, 1899 - (PYRAMIDELLIDAE)
- leuca, Retusa leuca R.B. Watson, 1886 - syn of: Cylichna leuca (R.B. Watson, 1886) - (RETUSIDAE)
- leucacanthus, Spondylus leucacanthus W.J. Broderip, 1833 - (SPONDYLIDAE)
- leucacme, Platyrhaphe leucacme O.F. von Möllendorff, 1901 - (CYCLOPHORIDAE)
- leucadia, Abida secale leucadia E. Gittenberger, 1973 - (CHONDRINIDAE)
- leucadia, Albinaria senilis leucadia (C.A. Westerlund, 1901) - (CLAUSILIIDAE)
- leucalchyma, Dentimargo leucalchyma J.C. Melvill & R. Standen, 1903 - syn of: Dentimargo alchymista (J.C. Melvill & R. Standen, 1903) - (MARGINELLIDAE)
- Leucarchaica, Genus Leucarchaica A.A. Schileyko & A.P. Pazylov, 1990 (HYGROMIIDAE)
- Leucarinia, Subgenus Arinia (Leucarinia) O.F. von Möllendorff, 1893 (DIPLOMMATINIDAE)
- leucas, Timbellus leucas (É.A.A. Locard, 1897) - (MURICIDAE)
- leucas, Pterynotus leucas É.A.A. Locard, 1897 - syn of: Timbellus leucas (É.A.A. Locard, 1897) - (MURICIDAE)
- leucaspis, Vexillum leucaspis M. Herrmann & G. Stossier, 2011 - (COSTELLARIIDAE)
- leucaspis, Gundlachia leucaspis (C.M.F. Ancey, 1901) - (PLANORBIDAE)
- leucathema, Triphora leucathema H.A. Rehder, 1980 - (TRIPHORIDAE)
- leucauchen, Calocochlia leucauchen O.F. von Möllendorff, 1895 - (BRADYBAENIDAE)
- leucedra, Kellia leucedra J.C. Melvill & R. Standen, 1907 - (KELLIIDAE)
- Leuchocharis, syn of: Subgenus Aspastus (Leucocharis) H.A. Pilsbry, 1900 (BOTHRIEMBRYONTIDAE)
- Leuchrochroa, Genus Leuchrochroa H.H. Beck, 1837 (HYGROMIIDAE)
- leuckarti, Clathromangelia leuckarti R.W. Dunker, 1860 - syn of: Pseudodaphnella leuckarti (R.W. Dunker, 1860) - (CLATHURELLIDAE)
- leuckarti, Platydoris leuckarti S. Delle Chiaje, 1841 - syn of: Platydoris argo (C. Linnaeus, 1767) - (DISCODORIDIDAE)
- leuckarti, Pseudodaphnella leuckarti (R.W. Dunker, 1860) - (RAPHITOMIDAE)
- leuckartii, Aegires leuckartii (J.B. Vérany, 1853) - (AEGIRIDAE)
- leuckartii, Aeolidia leuckartii J.B. Vérany, 1853 - (AEOLIDIIDAE)
- leuckartii, Doris leuckartii S. Delle Chiaje, 1841 - syn of: Doris pseudoargus J.L. Rapp, 1827 - (DORIDIDAE)
- leucobasis, Epiphragmophora leucobasis F. Haas, 1951 - (EPIPHRAGMOPHORIDAE)
- leucocephala, Argyropeza leucocephala (R.B. Watson, 1886) - (CERITHIIDAE)
- leucocephala, Euthymella leucocephala S. Kosuge, 1963 - (TRIPHORIDAE)
- leucocephalum, Bittium leucocephalum R.B. Watson, 1886 - syn of: Argyropeza leucocephala (R.B. Watson, 1886) - (CERITHIIDAE)
- Leucocharis, Subgenus Aspastus (Leucocharis) H.A. Pilsbry, 1900 (BOTHRIEMBRYONTIDAE)
- leucocheila pusilla, Planispira leucocheila pusilla C. Hedley, 1912 - syn of: Austrochloritis pusilla C. Hedley, 1912 - (CAMAENIDAE)
- leucocheilus, Ventopelita leucocheilus (J.C. Cox, 1868) - (CAMAENIDAE)
- leucocheilus, Helix leucocheilus J.C. Cox, 1868 - syn of: Ventopelita leucocheilus (J.C. Cox, 1868) - (HELICIDAE)
- leucocheilus, Orthalicus leucocheilus J.C.H. Crosse & P.H. Fischer, 1869 - (ORTHALICIDAE)
- leucocheilus lismorensis, Helix leucocheilus lismorensis H.A. Pilsbry, 1890 - syn of: Ventopelita leucocheilus (J.C. Cox, 1868) - (HELICIDAE)
- leucochila, Achatinella leucochila J.T. Gulick, 1856 - syn of: Leptachatina leucochila (J.T. Gulick, 1856) - (ACHATINELLIDAE)
- leucochila, Leptachatina leucochila (J.T. Gulick, 1856) - (AMASTRIDAE)
- leucochila, Otala leucochila C.A. Westerlund, 1892 - syn of: Otala lactea (O.F. Müller, 1774) - (HELICIDAE)
- leucochila, Plectopylis leucochila (G.P.L.K. Gude, 1897) - (PLECTOPYLIDAE)
- Leucochila, syn of: Genus Pupoides L. Pfeiffer, 1854 (PUPILLIDAE)
- Leucochiloides, syn of: Genus Pupoides L. Pfeiffer, 1854 (PUPILLIDAE)
- Leucochilus, syn of: Subgenus Gastrocopta (Albinula) V. Sterki, 1892 (GASTROCOPTIDAE)
- leucochroa, Albinaria arcadica leucochroa H. Nordsieck, 1984 - (CLAUSILIIDAE)
- Leucochroa, syn of: Subgenus Sphincterochila (Albea) P.M. Pallary, 1909 (SPHINCTEROCHILIDAE)
- Leucochroopsis, Genus Leucochroopsis Boettger, 1908 † (HYGROMIIDAE) (FOSSIL)
- leucocion, Gulella leucocion M. Connolly, 1929 - (STREPTAXIDAE)
- leucococca, Georissa leucococca J.J. Vermeulen, T.S. Liew & M. Schilthuizen, 2015 - (HYDROCENIDAE)
- Leucocranchia, syn of: Genus Bathothauma C. Chun, 1906 (CRANCHIIDAE)
- leucocyma, Drillia leucocyma W.H. Dall, 1884 - syn of: Pilsbryspira leucocyma (W.H. Dall, 1884) - (DRILLIIDAE)
- leucocyma, Pleurolucina leucocyma (W.H. Dall, 1886) - (LUCINIDAE)
- leucocyma, Pilsbryspira leucocyma (W.H. Dall, 1884) - (PSEUDOMELATOMIDAE)
- leucocyma, Monilispira leucocyma W.H. Dall, 1884 - syn of: Pilsbryspira leucocyma (W.H. Dall, 1884) - (PSEUDOMELATOMIDAE)
- leucocymoides, Pleurolucina leucocymoides (H.N. Lowe, 1935) - (LUCINIDAE)
- leucocystis, Microcystina leucocystis O.F. von Möllendorff, 1901 - (ARIOPHANTIDAE)
- leucocystis angigyra, Microcystina leucocystis angigyra O.F. von Möllendorff, 1901 - syn of: Microcystina angigyra (O.F. von Möllendorff, 1901) - (ARIOPHANTIDAE)
- leucoderma, Laminella sanguinea leucoderma H.A. Pilsbry & C.M. Cooke, 1915 - (AMASTRIDAE)
- leucoderma, Murex leucoderma A. Scacchi, 1836 - syn of: Dermomurex scalaroides (H.M.D. de Blainville, 1826) - (MURICIDAE)
- leucoderma, Eledone leucoderma (San Giovanni, 1829) - (OCTOPODIDAE)
- leucodesma, Pusia leucodesma (L.A. Reeve, 1845) - (COSTELLARIIDAE)
- Leucodiscus, Genus Leucodiscus Cossmann, 1918 † (ATAPHRIDAE) (FOSSIL)
- leucodoma, Galeodea leucodoma W.H. Dall, 1907 - (CASSIDAE)
- leucodomum, Buccinum leucodomum C.E. Lischke, 1872 - (BUCCINIDAE)
- leucodon, Labyrinthus leucodon (L. Pfeiffer, 1847) - (CAMAENIDAE)
- leucodon, Lyncina leucodon (W.J. Broderip, 1828) - (CYPRAEIDAE)
- leucodon, Cypraea leucodon W.J. Broderip, 1828 - syn of: Lyncina leucodon (W.J. Broderip, 1828) - (CYPRAEIDAE)
- leucodon, Imparietula leucodon (L. Pfeiffer, 1846) - (ENIDAE)
- leucodon, Venus leucodon W.J. Broderip & G.B. I Sowerby, 1835 - syn of: Chione californiensis (W.J. Broderip, 1835) - (VENERIDAE)
- leucodon, Bothriopupa leucodon (P.M.A. Morelet, 1851) - (VERTIGINIDAE)
- leucodon angioyna, Lyncina leucodon angioyna L. Raybaudi Massilia, 1978 - syn of: Lyncina leucodon (W.J. Broderip, 1828) - (CYPRAEIDAE)
- leucodon escotoi, Cypraea leucodon escotoi G.T. Poppe, 2004 - syn of: Lyncina leucodon (W.J. Broderip, 1828) - (CYPRAEIDAE)
- leucodon tenuidon, Lyncina leucodon tenuidon F.Jr. Lorenz, 1999 - (CYPRAEIDAE)
- leucogaster, Luria leucogaster J.F. Gmelin, 1791 - syn of: Luria lurida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- leucogona, Tellina leucogona W.H. Dall, 1900 - syn of: Tellina inaequistriata E. Donovan, 1802 - (TELLINIDAE)
- leucogranulatus, Cataegis leucogranulatus (C.C. Fu & W.K.C. Sun, 2006) - (CATAEGIDAE)
- leucogranulatus, Hybochelus leucogranulatus C.C. Fu & W.K.C. Sun, 2006 - syn of: Cataegis leucogranulatus (C.C. Fu & W.K.C. Sun, 2006) - (CHILODONTIDAE)
- leucoguttatum, Dacrydium leucoguttatum J. van der Linden & R.G. Moolenbeek, 2004 - (MYTILIDAE)
- leucolabrata, Daphnella leucolabrata (L. de Folin, 1867) - (RAPHITOMIDAE)
- leucolegnote, Elysia leucolegnote K.R. Jensen, 1990 - (PLAKOBRANCHIDAE)
- leucolena, Helix leucolena J.C.H. Crosse, 1867 - (HELICIDAE)
- leucolenus, Placostylus leucolenus J.C.H. Crosse, 1896 - syn of: Placostylus fibratus (T. Martyn, 1784) - (BOTHRIEMBRYONTIDAE)
- leucoloma, Monacha leucoloma G. Stabile, 1864 - syn of: Monacha cartusiana (O.F. Müller, 1774) - (HYGROMIIDAE)
- leucoma, Loripes leucoma W. Turton, 1822 - syn of: Loripes lacteus (C. Linnaeus, 1758) - (LUCINIDAE)
- Leucoma, syn of: Genus Leukoma A. Römer, 1857 (VENERIDAE)
- Leucomastus, syn of: Genus Zebrina F. Held, 1837 (ENIDAE)
- leucomata, Corinnaeturris leucomata (W.H. Dall, 1881) - (CLATHURELLIDAE)
- leucomata, Pleurotomella leucomata W.H. Dall, 1881 - syn of: Corinnaeturris leucomata (W.H. Dall, 1881) - (RAPHITOMIDAE)
- leucomata, Pleurotoma leucomata W.H. Dall, 1881 - syn of: Corinnaeturris leucomata (W.H. Dall, 1881) - (TURRIDAE)
- leucomelas, Drymaeus leucomelas J.A. Albers, 1854 - (BULIMULIDAE)
- leucomomorpha, Lucina leucomomorpha R. Tate, 1886 † - (LUCINIDAE) (FOSSIL)
- leucomphalus, Clanculus leucomphalus J.C. Verco, 1905 - (TROCHIDAE)
- leucomys, Nanaphora leucomys (R.P.J. Hervier, 1898) - (TRIPHORIDAE)
- leucomys, Triphora leucomys R.P.J. Hervier, 1898 - syn of: Nanaphora leucomys (R.P.J. Hervier, 1898) - (TRIPHORIDAE)
- Leuconenia, Genus Leuconenia H. Nordsieck 2005 (CLAUSILIIDAE)
- Leuconia, syn of: Genus Auriculinella L. von G. Tausch, 1886 (ELLOBIIDAE)
- Leuconopsis, Genus Leuconopsis F.W. Hutton, 1884 (ELLOBIIDAE)
- leuconota, Notoplax leuconota (C. Hedley & A.F.B. Hull, 1912) - (ACANTHOCHITONIDAE)
- leuconotus, Aeolidia leuconotus J.C. van Hasselt, 1823 - (AEOLIDIIDAE)
- Leucoparia, syn of: Genus Anatina H.C.F. Schumacher, 1817 (MACTRIDAE)
- Leucopepla, syn of: Genus Auriculinella L. von G. Tausch, 1886 (ELLOBIIDAE)
- Leucopetrites, Genus Leucopetrites Buckman, 1922 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- leucophaea, Achatinella valida leucophaea (J.T. Gulick, 1873) - (ACHATINELLIDAE)
- leucophaea, Acmaea leucophaea R.A. Philippi, 1846 - syn of: Scurria variabilis (G.B. I Sowerby, 1839) - (ACMAEIDAE)
- leucophaea, Helicostyla leucophaea G.B. I Sowerby, 1841 - (BRADYBAENIDAE)
- leucophaea, Megalacron leucophaea (J.C. Cox, 1872) - (CAMAENIDAE)
- leucophaea, Scurria leucophaea R.A. Philippi, 1846 - syn of: Scurria variabilis (G.B. I Sowerby, 1839) - (LOTTIIDAE)
- leucophaea, Conuber leucophaea L.A. Reeve, 1855 - syn of: Conuber sordidum (W.J. Swainson, 1821) - (NATICIDAE)
- leucophaea, Testacella leucophaea S.A. de Boissy, 1805 - syn of: Testacella haliotidea J.P.R. Draparnaud, 1801 - (TESTACELLIDAE)
- leucophaea, Gibbula leucophaea (R.A. Philippi, 1836) - (TROCHIDAE)
- leucophaea delicata, Gibbula leucophaea delicata G.S. Coen, 1937 - (TROCHIDAE)
- leucophaea subfenestrata, Helicostyla leucophaea subfenestrata O.F. von Möllendorff, 1898 - (BRADYBAENIDAE)
- leucophaeata, Mytilopsis leucophaeata (T.A. Conrad, 1831) - (DREISSENIDAE)
- leucophaeatus, Mytilus leucophaeatus T.A. Conrad, 1831 - syn of: Mytilopsis leucophaeata (T.A. Conrad, 1831) - (MYTILIDAE)
- leucophaes, Echineulima leucophaes (J.R. le B. Tomlin & L.J. Shackleford, 1913) - (EULIMIDAE)
- leucophaeta, Congeria leucophaeta T.A. Conrad, 1831 - syn of: Mytilopsis leucophaeata (T.A. Conrad, 1831) - (DREISSENIDAE)
- leucophaeta, Mytilus leucophaeta T.A. Conrad, 1831 - syn of: Mytilopsis leucophaeata (T.A. Conrad, 1831) - (MYTILIDAE)
- leucophaetus, Mytilopsis leucophaetus T.R. Nuttall, 1990 - syn of: Mytilopsis leucophaeata (T.A. Conrad, 1831) - (DREISSENIDAE)
- leucophaeus, Apex leucophaeus J.T. Gulick, 1873 - syn of: Achatinella valida leucophaea (J.T. Gulick, 1873) - (ACHATINELLIDAE)
- leucophaeus, Argopecten leucophaeus L.A. Reeve, 1852 - syn of: Argopecten irradians concentricus (T. Say, 1822) - (PECTINIDAE)
- leucophaneata, Mytilopsis leucophaneata T.A. Conrad, 1831 - syn of: Mytilopsis leucophaeata (T.A. Conrad, 1831) - (DREISSENIDAE)
- leucophanes, Schwartziella leucophanes (J.R. le B. Tomlin, 1931) - (ZEBINIDAE)
- leucophera, Strophiops leucophera C.J. Maynard, 1925 - (CERIONIDAE)
- leucophlegma, Daphnella leucophlegma (W.H. Dall, 1881) - (RAPHITOMIDAE)
- leucophlegma, Microstelma leucophlegma W.H. Dall, 1881 - (ZEBINIDAE)
- leucophryna, Siciliaria leucophryna (L. Pfeiffer, 1862) - (CLAUSILIIDAE)
- leucophryna, Vexillum leucophryna H. Turner & M.P. Marrow, 2001 - (COSTELLARIIDAE)
- leucophtalma, Chloraea leucophtalma L. Pfeiffer, 1870 - (BRADYBAENIDAE)
- Leucophysema, syn of: Genus Roxania W.E. Leach in J.E. Gray, 1847 (SCAPHANDRIDAE)
- Leucophytia, syn of: Genus Auriculinella L. von G. Tausch, 1886 (ELLOBIIDAE)
- leucopleura, Acmaea leucopleura J.F. Gmelin, 1791 - syn of: Lottia leucopleura (J.F. Gmelin, 1791) - (ACMAEIDAE)
- leucopleura, Medora dalmatina leucopleura (Š. Brusina, 1866) - (CLAUSILIIDAE)
- leucopleura, Lottia leucopleura (J.F. Gmelin, 1791) - (LOTTIIDAE)
- leucopleura, Patella leucopleura J.F. Gmelin, 1791 - syn of: Lottia leucopleura (J.F. Gmelin, 1791) - (PATELLIDAE)
- leucopleura, Brachypodella leucopleura (K.T. Menke, 1847) - (UROCOPTIDAE)
- leucopleura cubensis, Lottia leucopleura cubensis L.A. Reeve, 1855 - syn of: Lottia cubensis (L.A. Reeve, 1855) - (LOTTIIDAE)
- leucopleura digitale, Lottia leucopleura digitale (P.F. Röding, 1798) - (LOTTIIDAE)
- leucopleura jamaicensis, Lottia leucopleura jamaicensis (J.F. Gmelin, 1791) - syn of: Lottia jamaicensis (J.F. Gmelin, 1791) - (LOTTIIDAE)
- leucopleura papillaris, Lottia leucopleura papillaris (P.F. Röding, 1798) - (LOTTIIDAE)
- leucopleurus, Pseudonapaeus leucopleurus (W.A. Lindholm, 1927) - (ENIDAE)
- leucopsis, Cypraea leucopsis G. Shaw, 1803 - syn of: Macrocypraea zebra (C. Linnaeus, 1758) - (CYPRAEIDAE)
- leucoptera, Stoloteuthis leucoptera (A.E. Verrill, 1878) - (SEPIOLIDAE)
- Leucoptychia, Subgenus Leptopoma (Leucoptychia) J.C.H. Crosse, 1878 (CYCLOPHORIDAE)
- leucoptychus, Pseudonapaeus leucoptychus (C.M.F. Ancey, 1886) - (ENIDAE)
- leucopyrga, Spirotropis leucopyrga W. Kobelt, 1904 - syn of: Spirotropis centimata (W.H. Dall, 1889) - (DRILLIIDAE)
- leucoranea, Caucasotachea leucoranea A. Mousson, 1863 - syn of: Caucasotachea lencoranea (A. Mousson, 1863) - (HELICIDAE)
- leucoraphe, Laeocathaica leucoraphe O.F. von Möllendorff, 1899 - syn of: Laeocathaica leucorhaphe (O.F. von Möllendorff, 1899) - (BRADYBAENIDAE)
- leucoraphe, Isabellaria leucoraphe O. Böttger, 1878 - syn of: Isabellaria leucorhaphe (O. Böttger, 1878) - (CLAUSILIIDAE)
- leucoraphe, Bridouxia leucoraphe (C.M.F. Ancey, 1890) - (PALUDOMIDAE)
- leucoraphe, Baizea leucoraphe C.M.F. Ancey, 1890 - syn of: Bridouxia leucoraphe (C.M.F. Ancey, 1890) - (PALUDOMIDAE)
- leucoraphe, Suavitas leucoraphe (L.A. Reeve, 1852) - (SAGDIDAE)
- leucorhaphe, Laeocathaica leucorhaphe (O.F. von Möllendorff, 1899) - (BRADYBAENIDAE)
- leucorhaphe, Papuina leucorhaphe O.F. von Möllendorff, 1899 - (CAMAENIDAE)
- leucorhaphe, Isabellaria leucorhaphe (O. Böttger, 1878) - (CLAUSILIIDAE)
- Leucorhynchia, Genus Leucorhynchia J.C.H. Crosse, 1867 (SKENEIDAE)
- leucorraphe, Achatinella leucorraphe (J.T. Gulick) - (ACHATINELLIDAE)
- leucorraphe, Apex leucorraphe J.T. Gulick - syn of: Achatinella leucorraphe (J.T. Gulick) - (ACHATINELLIDAE)
- leucorraphe irwini, Achatinella leucorraphe irwini H.A. Pilsbry & C.M. Cooke, 1914 - (ACHATINELLIDAE)
- leucorrhaphe, Achatinella apexfulva leucorrhaphe J.T. Gulick, 1873 - (ACHATINELLIDAE)
- leucoryx, Dentalium leucoryx M. Boissevain, 1906 - (DENTALIIDAE)
- leucoshaera, Dolichupis leucoshaera F.A. Schilder, 1931 - syn of: Dolichupis virgo D. Fehse & J. Grego, 2005 - (TRIVIIDAE)
- Leucosia, syn of: Subgenus Baicalia (Godlewskia) J.C.H. Crosse & P. Fischer, 1879 (AMNICOLIDAE)
- Leucosilla, Genus Leucosilla Scudder, 1882 (ETHERIIDAE)
- Leucosphaera, Genus Leucosphaera J.D. Taylor & E.A. Glover, 2005 (LUCINIDAE)
- leucosphaera, Dolichupis leucosphaera (F.A. Schilder, 1931) - (TRIVIIDAE)
- leucosphaera, Pusula leucosphaera F.A. Schilder, 1931 - syn of: Dolichupis leucosphaera (F.A. Schilder, 1931) - (TRIVIIDAE)
- leucosphaera, Trivia leucosphaera F.A. Schilder, 1931 - syn of: Dolichupis leucosphaera (F.A. Schilder, 1931) - (TRIVIIDAE)
- leucosphaera, Lamellaria leucosphaera J.S. Schwengel, 1942 - (VELUTINIDAE)
- leucospira, Ancilla leucospira E.A. Smith, 1899 - (ANCILLARIIDAE)
- leucospira, Helicarion leucospira L. Pfeiffer, 1857 - (HELICARIONIDAE)
- Leucostele, Subgenus Paludinella (Leucostele) J.O. Semper in K.H.J. Thiele, 1927 (ASSIMINEIDAE)
- leucostephes, Hertleinella leucostephes S.S. Berry, 1958 - syn of: Calotrophon turritus (W.H. Dall, 1919) - (MURICIDAE)
- leucostica, Alaba leucostica A. Adams, 1861 - syn of: Alaba leucosticta (A. Adams, 1861) - (LITIOPIDAE)
- leucostica, Nodilittorina leucostica L.A. Reeve, 1857 - syn of: Echinolittorina quadricincta (J.K. Megerle Von Mühlfeld, 1824) - (LITTORINIDAE)
- leucosticta, Columbella leucosticta J.H.F. Link, 1807 - syn of: Pyrene punctata (J.G. Bruguière, 1789) - (COLUMBELLIDAE)
- leucosticta, Alaba leucosticta (A. Adams, 1861) - (LITIOPIDAE)
- leucosticta, Echinolittorina leucosticta (R.A. Philippi, 1847) - (LITTORINIDAE)
- leucosticta, Subcancilla leucosticta J.F. Gmelin, 1791 - syn of: Subcancilla filaris (C. Linnaeus, 1771) - (MITRIDAE)
- leucosticta, Arcuatula leucosticta (E.C. Von Martens, 1897) - (MYTILIDAE)
- leucosticta biangulata, Echinolittorina leucosticta biangulata E.C. Von Martens, 1897 - syn of: Echinolittorina biangulata (E.C. Von Martens, 1897) - (LITTORINIDAE)
- leucostictus, Peronaeus leucostictus R.A. Philippi, 1856 - (BULIMULIDAE)
- leucostictus, Conus leucostictus J.F. Gmelin, 1791 - syn of: Stephanoconus regius (J.F. Gmelin, 1791) - (CONIDAE)
- leucostictus, Tectarius leucostictus R.A. Philippi, 1847 - syn of: Echinolittorina leucosticta (R.A. Philippi, 1847) - (LITTORINIDAE)
- Leucostigma, Genus Leucostigma A. Wagner, 1919 (CLAUSILIIDAE)
- leucostigma, Leucostigma candidescens leucostigma (E.A. Rossmässler, 1836) - (CLAUSILIIDAE)
- leucostigmata, Clathurella leucostigmata (R.P.J. Hervier, 1896) - (CLATHURELLIDAE)
- leucostoma, Asolene leucostoma W.J. Swainson, 1823 - syn of: Pomacea urceus (O.F. Müller, 1774) - (AMPULLARIIDAE)
- leucostoma, Buccinum leucostoma C.E. Lischke, 1872 - (BUCCINIDAE)
- leucostoma, Leuconenia leucostoma (E. Neubert & H. Nordsieck, 2005.) - (CLAUSILIIDAE)
- leucostoma, Semirugata vidovichii leucostoma (H.C. Küster, 1850) - (CLAUSILIIDAE)
- leucostoma, Mitrella leucostoma (J.S. Gaskoin, 1851) - (COLUMBELLIDAE)
- leucostoma, Lyncina leucostoma J.F. Gmelin, 1791 - syn of: Lyncina lynx (C. Linnaeus, 1758) - (CYPRAEIDAE)
- leucostoma, Differena leucostoma A.A. Schileyko, 1984 - (ENIDAE)
- leucostoma, Helix leucostoma G. Stabile, 1859 - syn of: Cepaea nemoralis (C. Linnaeus) - (HELICIDAE)
- leucostoma, Theba leucostoma A. Risso, 1826 - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- leucostoma, Helix leucostoma W. Kobelt, 1903 - syn of: Cepaea nemoralis (C. Linnaeus) - (HELICIDAE)
- leucostoma, Oenopota leucostoma L.A. Reeve, 1845 - syn of: Curtitoma trevelliana (W. Turton, 1834) - (MANGELIIDAE)
- leucostoma, Neocancilla leucostoma J.F. Gmelin, 1791 - syn of: Neocancilla papilio (J.H.F. Link, 1807) - (MITRIDAE)
- leucostoma, Purpura leucostoma G.P. Deshayes, 1863 - syn of: Cronia avenacea (R.P. Lesson, 1842) - (MURICIDAE)
- leucostoma, Coralliophila leucostoma S. Kosuge, 1986 - syn of: Coralliophila wilsoni G.B. Pritchard & J.H. Gatliff, 1898 - (MURICIDAE)
- leucostoma, Oliva leucostoma F.P. Marrat, 1871 - syn of: Oliva atalina P.L. Duclos, 1835 - (OLIVIDAE)
- leucostoma, Oliva leucostoma J.B.P.A. Lamarck, 1811 - syn of: Oliva bulbiformis P.L. Duclos, 1835 - (OLIVIDAE)
- leucostoma, Oliva leucostoma P.L. Duclos, 1840 - syn of: Oliva keenii F.P. Marrat, 1870 - (OLIVIDAE)
- Leucostoma, syn of: Genus Fissilabia W. Macgillivray, 1836 (PLANAXIDAE)
- leucostoma, Anisus leucostoma (P.A. Millet, 1813) - (PLANORBIDAE)
- leucostoma, Ranella leucostoma J.B.P.A. Lamarck, 1822 - syn of: Ranella australasia (G. Perry, 1811) - (RANELLIDAE)
- leucostoma, Verena crenocarinata leucostoma S. Moricand, 1841 - (THIARIDAE)
- leucostoma, Turritella leucostoma A. Valenciennes, 1832 - (TURRITELLIDAE)
- leucostoma, Coelostemma leucostoma F.G. Thompson, 1971 - (UROCOPTIDAE)
- leucostoma nikolensis, Anisus leucostoma nikolensis Kozhov, 1936 - syn of: Anisus leucostoma (P.A. Millet, 1813) - (PLANORBIDAE)
- leucostoma poecilostoma, Ranella leucostoma poecilostoma E.C. Von Martens, 1904 - syn of: Ranella gemmifera F.M. Euthyme, 1889 - (RANELLIDAE)
- leucostomoides, Sassia leucostomoides (Sowerby, 1846) - (RANELLIDAE)
- leucostomum, Acrosterigma leucostomum I. von Born, 1780 - syn of: Acrosterigma magna (C. Linnaeus, 1758) - (CARDIIDAE)
- leucostomus, Cyclophorus leucostomus (L. Pfeiffer, 1852) - (CYCLOPHORIDAE)
- leucostomus, Megalobulimus leucostomus (G.B. Sowerby, 1835) - (MEGALOBULIMIDAE)
- leucostomus castelnaudi, Megalobulimus leucostomus castelnaudi (L.H. Hupé, 1857) - (MEGALOBULIMIDAE)
- leucostomus lacunosus, Megalobulimus leucostomus lacunosus (A.V.M.D. D'Orbigny, 1835) - (MEGALOBULIMIDAE)
- leucostriatus, Pseudolatirus leucostriatus S. Kosuge, 1979 † - (FASCIOLARIIDAE) (FOSSIL)
- Leucosyrinx, Genus Leucosyrinx W.H. Dall, 1889 (PSEUDOMELATOMIDAE)
- leucotaeniatus, Cantharus leucotaeniatus S. Kosuge, 1985 - (BUCCINIDAE)
- Leucotaenius, Genus Leucotaenius E.C. Von Martens in J.A. Albers, 1860 (ACAVIDAE)
- leucothea, Peristernia forskalii leucothea J.C. Melvill, 1891 - (FASCIOLARIIDAE)
- Leucothea, syn of: Subgenus Callocardia (Aphrodora) A.J. Jukes-Browne, 1914 (VENERIDAE)
- leucothoe, Partula leucothoe C.G. Semper, 1865 - (PARTULIDAE)
- Leucotina, Genus Leucotina A. Adams, 1860 (AMATHINIDAE)
- Leucotis, syn of: Genus Vanikoro J.R.C. Quoy & J.P. Gaimard, 1832 (VANIKORIDAE)
- leucotrema, Odontostomus leucotrema H.H. Beck - syn of: Burringtonia minor (S. Moricand, 1836) - (ODONTOSTOMIDAE)
- leucotropis, Lophiotoma leucotropis (A. Adams & L.A. Reeve, 1850) - (TURRIDAE)
- leucotropis, Pleurotoma leucotropis A. Adams & L.A. Reeve, 1850 - syn of: Lophiotoma leucotropis (A. Adams & L.A. Reeve, 1850) - (TURRIDAE)
- leucoxanthus, Amphidromus atricallosus leucoxanthus (E.C. Von Martens, 1854) - (CAMAENIDAE)
- leucozoa, Zachrysia guanensis leucozoa C.G. Aguayo & M.L. Jaume, 1954 - (CAMAENIDAE)
- leucozona, Achatinella apexfulva leucozona J.T. Gulick, 1873 - (ACHATINELLIDAE)
- leucozona, Enginella leucozona (R.A. Philippi, 1844) - (BUCCINIDAE)
- leucozona, Engina leucozona R.A. Philippi, 1843 - syn of: Enginella leucozona (R.A. Philippi, 1844) - (BUCCINIDAE)
- leucozona, Monacha leucozona B. Hausdorf, 2000 - (HYGROMIIDAE)
- leucozona, Petasina leucozona (C. Pfeiffer, 1828) - (HYGROMIIDAE)
- leucozona, Belloliva leucozona (A. Adams & G.F. Angas, 1864) - (OLIVIDAE)
- leucozona erdelii, Petasina leucozona erdelii (C. Pfeiffer, 1828) - (HYGROMIIDAE)
- leucozona heteromorpha, Euconulus leucozona heteromorpha C.A. Westerlund, 1876 - syn of: Petasina leucozona heteromorpha (C.A. Westerlund, 1876) - (EUCONULIDAE)
- leucozona heteromorpha, Petasina leucozona heteromorpha (C.A. Westerlund, 1876) - (HYGROMIIDAE)
- leucozona obscura, Enginella leucozona obscura (F.J. Cantraine, 1835) - (BUCCINIDAE)
- leucozona ovirensis, Petasina leucozona ovirensis (E.A. Rossmässler, 1838) - (HYGROMIIDAE)
- leucozonalis, Leucozonia leucozonalis (J.B.P.A. Lamarck, 1822) - (FASCIOLARIIDAE)
- leucozonalis, Leucozonia leucozonalis J.B.P.A. Lamarck, 1822 - syn of: Leucozonia leucozonalis (J.B.P.A. Lamarck, 1822) - (FASCIOLARIIDAE)
- leucozonalis, Helicina leucozonalis C.M.F. Ancey, 1892 - (HELICINIDAE)
- leucozonalis, Turbinella leucozonalis J.B.P.A. Lamarck, 1822 - syn of: Leucozonia leucozonalis (J.B.P.A. Lamarck, 1822) - (TURBINELLIDAE)
- leucozonatus, Drymaeus vimineus leucozonatus (H.H. Beck, 1837) - (BULIMULIDAE)
- Leucozonella, Genus Leucozonella W.A. Lindholm, 1927 (HYGROMIIDAE)
- leucozonia, Engina leucozonia A.H. Verrill, 1950 - (BUCCINIDAE)
- Leucozonia, Genus Leucozonia J.E. Gray, 1847 (FASCIOLARIIDAE)
- leucozonia, Mitra leucozonia H.C. Küster, 1839 - syn of: Nebularia chrysalis L.A. Reeve, 1844 - (MITRIDAE)
- leucozonias, Vexillum leucozonias (G.P. Deshayes in E.S.J.L. de Laborde & M. Linant, 1834) - (COSTELLARIIDAE)
- leucozonias, Mitra leucozonias G.P. Deshayes in E.S.J.L. de Laborde & M. Linant, 1834 - syn of: Vexillum leucozonias (G.P. Deshayes in E.S.J.L. de Laborde & M. Linant, 1834) - (MITRIDAE)
- leucozonias, Natica leucozonias J.F. Gmelin, 1791 - syn of: Natica vitellus (C. Linnaeus, 1758) - (NATICIDAE)
- leucozonias, Nerita leucozonias J.F. Gmelin, 1791 - syn of: Natica vitellus (C. Linnaeus, 1758) - (NERITIDAE)
- leucozonias, Varicella leucozonias (J.F. Gmelin, 1791) - (OLEACINIDAE)
- leucozonias, Olivella leucozonias J.E. Gray, 1839 - syn of: Olivella pulchella (P.L. Duclos, 1835) - (OLIVELLIDAE)
- leucozonias, Oliva leucozonias J.E. Gray, 1839 - syn of: Olivella pulchella (P.L. Duclos, 1835) - (OLIVIDAE)
- leucozonias, Dendropoma leucozonias (O.A.L. Mörch, 1861) - (VERMETIDAE)
- leucozonias striatella, Varicella leucozonias striatella H.A. Pilsbry, 1907 - syn of: Varicella leucozonias (J.F. Gmelin, 1791) - (OLEACINIDAE)
- leucozonum, Buccinum leucozonum R.A. Philippi, 1844 - syn of: Enginella leucozona (R.A. Philippi, 1844) - (BUCCINIDAE)
- leucozonus, Apex leucozonus J.T. Gulick - syn of: Achatinella valida cinerosa L. Pfeiffer, 1855 - (ACHATINELLIDAE)
- leucum, Prionodoceras leucum (Spath, 1935 †) - (CARDIOCERATIDAE) (FOSSIL)
- leucum, Glyphostoma leucum (K.J. Bush, 1893) - (CLATHURELLIDAE)
- leucura, Sonorella virilis leucura H.A. Pilsbry & J.H. Ferriss, 1910 - (HELMINTHOGLYPTIDAE)
- leucus, Behemoth leucus (Buckman) † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- leufroyi, Raphitoma leufroyi (A. Michaud, 1828) - (RAPHITOMIDAE)
- leufroyi, Pleurotoma leufroyi A. Michaud, 1827 - syn of: Raphitoma leufroyi (A. Michaud, 1828) - (TURRIDAE)
- leufroyi albina, Raphitoma leufroyi albina (P. Dautzenberg, 1883) - (RAPHITOMIDAE)
- leufroyi carnosula, Defrancia leufroyi carnosula J.G. Jeffreys, 1867 - syn of: Comarmondia inflata (G.J. De Cristofori & G. Jan, 1832) - (CLATHURELLIDAE)
- leufroyi carnosula, Raphitoma leufroyi carnosula J.G. Jeffreys, 1867 - (RAPHITOMIDAE)
- leufroyi coralligena, Raphitoma leufroyi coralligena T.A. de M. Monterosato, 1872 - (RAPHITOMIDAE)
- Leufroyia, syn of: Genus Raphitoma L.M.D. Bellardi, 1847 (RAPHITOMIDAE)
- Leukadiella, Genus Leukadiella Renz, 1913 † (HILDOCERATIDAE) (FOSSIL)
- leukoleptus, Seraphs leukoleptus P.O. Jung, 1974 † - (SERAPHSIDAE) (FOSSIL)
- Leukoma, Genus Leukoma A. Römer, 1857 (VENERIDAE)
- Leukomoides, Genus Leukomoides Ogasawara, 1976 † (CARDIIDA (UNASSIGNED)) (FOSSIL)
- leukoranea, Anodonta leukoranea É.A.A. Locard, 1890 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- leukos, Ocinebrina leukos R. Houart, 2000 - (MURICIDAE)
- leukospiralis, Etrema leukospiralis C. Chen & Y.F. Huang, 2005 - (CLATHURELLIDAE)
- leunisii, Bathytoma leunisii (R.A. Philippi, 1843 †) - (BORSONIIDAE) (FOSSIL)
- leunisii, Acirsa leunisii (R.A. Philippi, 1843 †) - (EPITONIIDAE) (FOSSIL)
- leunisseni, Cookiloxa leunisseni Heidelberger, 2007 † - (LOXONEMATIDAE) (FOSSIL)
- leunissi, Nodeuomphalus leunissi Heidelberger & K. Bandel, 1999 † - (EUOMPHALIDAE) (FOSSIL)
- leunissi, Tubiconcha leunissi (Heidelberger, 2001 †) - (EUOMPHALIDAE) (FOSSIL)
- leura, Pleydellia leura S.S. Buckman, 1890 † - (HILDOCERATIDAE) (FOSSIL)
- leura, Sportella leura Gardner, 1947 † - (SPORTELLIDAE) (FOSSIL)
- Leuroactis, Subgenus Venericardia (Leuroactis) Stewart, 1930 † (CARDITIDAE) (FOSSIL)
- Leuroceras, Genus Leuroceras Hyatt, 1893 † (TRIGONOCERATIDAE) (FOSSIL)
- Leurocochlea, Genus Leurocochlea Stanisic, 2010 (CHAROPIDAE)
- Leurocycloceras, Genus Leurocycloceras Foerste, 1928 † (KIONOCERATIDAE) (FOSSIL)
- Leurocystis, Subgenus Microcystis (Leurocystis) F.C. Baker, 1933 (EUCONULIDAE)
- Leurolepas, Genus Leurolepas J.H. McLean, 1970 (FISSURELLIDAE)
- Leurorthoceras, Genus Leurorthoceras Foerste, 1921 † (ACTINOCERATIDAE) (FOSSIL)
- Leurotrochoceras, Genus Leurotrochoceras Foerste, 1926 † (LECHRITROCHOCERATIDAE) (FOSSIL)
- leurovata, Yoldiella leurovata J.D. Stilwell & Zinsmeister, 1992 † - (YOLDIIDAE) (FOSSIL)
- leurum, Costellaria leurum W.P. Woodring, 1928 † - (COSTELLARIIDAE) (FOSSIL)
- leurus, Labiostrombus leurus W.P. Woodring, 1928 † - (STROMBIDAE) (FOSSIL)
- leuthardti, Erymnocerites leuthardti Jeannet, 1951 † - (PACHYCERATIDAE) (FOSSIL)
- leutweini, Pseudoliva leutweini Bohm, 1926 † - (PSEUDOLIVIDAE) (FOSSIL)
- Leutzenia, Genus Leutzenia Warén, 1980 † (EULIMIDAE) (FOSSIL)
- Leutzenia, syn of: Genus Echineulima C.F. Lützen & C. Nielsen, 1975 (EULIMIDAE)
- leuzingeri, Euclia leuzingeri R.F. Rutsch, 1934 † - (CANCELLARIIDAE) (FOSSIL)
- leva, Pseudaneitea leva D.W. Burton, 1977 - (ATHORACOPHORIDAE)
- leva, Strophiops leva C.J. Maynard & W.F. Clapp, 1921 - (CERIONIDAE)
- levamisii, Pyrgulina levamisii E. Saurin, 1959 - (PYRAMIDELLIDAE)
- levanderi, Drillia levanderi R. Sturany, 1905 - (DRILLIIDAE)
- levanderi, Levanderiella levanderi (H.R. Simroth, 1901) - (PARMACELLIDAE)
- Levanderia, Genus Levanderia R. Sturany, 1905 (GALEOMMATIDAE)
- Levanderia, syn of: Subgenus Candaharia (Levanderiella) A.A. Schileyko, 2007 (PARMACELLIDAE)
- Levanderiella, Subgenus Candaharia (Levanderiella) A.A. Schileyko, 2007 (PARMACELLIDAE)
- levania, Columbella levania P.L. Duclos, 1848 - (COLUMBELLIDAE)
- levanidovae, Helicorbis levanidovae F. Zatrawkin & I.M. Moskvicheva in F. Zatrawkin, 1985 - (PLANORBIDAE)
- levante, Keuppia levante A. Fuchs, Bracchi & Weis, 2009 † - (PALAEOCTOPODIDAE) (FOSSIL)
- levantica, Pseudobithynia levantica P. Glöer & U. Bössneck, 2007 - (BITHYNIIDAE)
- levantica, Popovicia levantica (Popovic, 1964 †) - (VIVIPARIDAE) (FOSSIL)
- levantina, Beneckeia levantina Parnes, 1962 † - (BENECKEIIDAE) (FOSSIL)
- levantina, Melanella levantina (M. Oliverio, G. Buzzurro & R. Villa, 1994) - (EULIMIDAE)
- Levantina, Genus Levantina W. Kobelt, 1871 (HELICIDAE)
- levantina, Chondrobasis levantina (B. Arconada & M.A. Ramos, 2000) - (HYDROBIIDAE)
- levantina, Setia levantina C. Bogi & B.S. Galil, 2007 - (RISSOIDAE)
- levantina, Oxyloma levantina G.P. Deshayes, 1835 - syn of: Oxyloma elegans (A. Risso, 1826) - (SUCCINEIDAE)
- levantina, Terebra levantina U. Aubry, 1999 - (TEREBRIDAE)
- levantina, Niveria levantina C. Smriglio, P. Mariottini & G. Buzzurro, 1998 - syn of: Niveria problematica (F.A. Schilder, 1931) - (TRIVIIDAE)
- levantinum, Cerithium levantinum E.A. Smith, 1891 - syn of: Cerithium scabridum R.A. Philippi, 1848 - (CERITHIIDAE)
- levantinus, Columbites levantinus Renz & Renz, 1948 † - syn of: Prenkites timorensis Spath, 1930 † - (COLUMBITIDAE) (FOSSIL)
- Levantotrigonia, Genus Levantotrigonia Nakano, 1977 † (RUTITRIGONIIDAE) (FOSSIL)
- Levarlatirus, Subgenus Latirus (Levarlatirus) Garvie, 2013 † (FASCIOLARIIDAE) (FOSSIL)
- levata, Elia retowskii levata B. Hausdorf, 1997 - (CLAUSILIIDAE)
- levata, Ctenodonta levata W.J. Raymond, 1902 † - syn of: Ctenodonta peracuta W.J. Raymond, 1905 † - (CTENODONTIDAE) (FOSSIL)
- levata, Falsicolus levata Finlay, 1930 † - (FASCIOLARIIDAE) (FOSSIL)
- levata, Gymnothilda levata F. Schröder, 1995 † - (MATHILDIDAE) (FOSSIL)
- levata, Ophileta levata Vanuxem, 1842 † - syn of: Ophileta laevata Vanuxem, 1842 † - (OPHILETIDAE) (FOSSIL)
- levata, Scutellastra levata G.P. Deshayes, 1863 - syn of: Scutellastra exusta pica (L.A. Reeve, 1854) - (PATELLIDAE)
- levata, Platyclymenia levata Hartenfels & Becker, 2016 † - (PLATYCLYMENIIDAE) (FOSSIL)
- levatiformis, Nuculavus levatiformis (Walcott, 1884 †) - (NUCULIDAE) (FOSSIL)
- levatus, Callochiton levatus P. Kaas & R.A. Van Belle, 1998 - (CALLOCHITONIDAE)
- levayi, Paraprososthenia levayi (A.R.J.B. Bavay, 1895) - (POMATIOPSIDAE)
- leve, Bosellia leve C.L. Fernández-Ovies & J.A. Ortea, 1986 - syn of: Bosellia levis Fernandez-Ovies & J.A. Ortea, 1986 - (BOSELLIIDAE)
- leve, Vepricardium leve H.E. Anton, 1838 - syn of: Vepricardium multispinosum (Sowerby, 1838) - (CARDIIDAE)
- leve, Cerithium leve J.R.C. Quoy & J.P. Gaimard, 1834 - syn of: Campanile symbolicum T. Iredale, 1917 - (CERITHIIDAE)
- leve, Nitanoceras leve McLearn, 1947 † - syn of: Nitanoceras selwyni (McLearn, 1930 †) - (MEGAPHYLLITIDAE) (FOSSIL)
- Levella, Genus Levella Marwick, 1943 † (TROCHACLIDIDAE) (FOSSIL)
- leveneae, Pseudozygopleura leveneae Knight, 1930 † - (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- levenensis, Conasprella levenensis (E. Monnier & M.J. Tenorio, 2017) - (CONIDAE)
- leveni, Almites leveni Leonova, 1992 † - (MARATHONITIDAE) (FOSSIL)
- Levenia, Subgenus Cypraecassis (Levenia) J.E. Gray, 1847 (CASSIDAE)
- levensis, Voluticella levensis K.V.W. Palmer, 1953 † - (VOLUTIDAE) (FOSSIL)
- levensonia, Dupontia levensonia J. Gerlach, 2003 - (HELICARIONIDAE)
- leveretti, Dentonia leveretti (Cragin, 1893 †) - (CYRENIDAE) (FOSSIL)
- leveretti, Ostrea leveretti L.W. Stephenson, 1952 † - (OSTREIDAE) (FOSSIL)
- leveriana, Oliva leveriana G. Perry, 1811 - syn of: Oliva porphyria (C. Linnaeus, 1758) - (OLIVIDAE)
- leves, Spisula semisulcata leves A.V.M.D. D'Orbigny, 1850 † - (MACTRIDAE) (FOSSIL)
- levesquei, Amaurellina levesquei (A.V.M.D. D'Orbigny, 1850 † †) - (AMPULLINIDAE) (FOSSIL)
- levesquei, Parvicardium levesquei (Orbigny, 1850 †) - (CARDIIDAE) (FOSSIL)
- levesquei, Donax levesquei A.V.M.D. D'Orbigny, 1850 † - (DONACIDAE) (FOSSIL)
- levesquei, Sphaerocypraea levesquei (Deshayes, 1835) † - (EOCYPRAEIDAE) (FOSSIL)
- levesquei, Opalia levesquei M.E.A. de Boury, 1887 † - (EPITONIIDAE) (FOSSIL)
- levesquei, Theba levesquei S. Berthelot - syn of: Theba pisana (O.F. Müller, 1774) - (HELICIDAE)
- levesquei, Dumortieria levesquei (A.V.M.D. D'Orbigny, 1844 †) - (HILDOCERATIDAE) (FOSSIL)
- levesquei, Here levesquei (G.P. Deshayes, 1857 †) - (LUCINIDAE) (FOSSIL)
- levesquei, Brachidontes levesquei G.P. Deshayes, 1858 † - (MYTILIDAE) (FOSSIL)
- levesquei, Mytilus levesquei G.P. Deshayes, 1906 † - (MYTILIDAE) (FOSSIL)
- levesquei, Sinum levesquei Author unknown † - (NATICIDAE) (FOSSIL)
- levesquei, Cyrtopleuropsis levesquei (Watelet 1851) † - (PHOLADIDAE) (FOSSIL)
- levesquei, Aviculoperna levesquei (Orbigny, 1850 †) - (PTERIIDAE) (FOSSIL)
- levesquei, Belopterina levesquei A.E.J. Férussac & A.V.M.D. D'Orbigny, 1839 † - (SEPIIDA (UNASSIGNED)) (FOSSIL)
- levesquei, Tellina levesquei A.V.M.D. D'Orbigny, 1850 † - (TELLINIDAE) (FOSSIL)
- levesqui, Sinum clathratum levesqui G.P. Deshayes, 1864 † - (NATICIDAE) (FOSSIL)
- levettei, Lepetopsis levettei (White, 1882 †) - (LEPETOPSIDAE) (FOSSIL)
- levettei, Patella levettei White, 1882 † - syn of: Lepetopsis levettei (White, 1882 †) - (PATELLIDAE) (FOSSIL)
- levettei, Ashmunella levettei (T.B. Bland, 1881) - (POLYGYRIDAE)
- levettei angigyra, Ashmunella levettei angigyra H.A. Pilsbry, 1905 - (POLYGYRIDAE)
- levettei bifurca, Ashmunella levettei bifurca H.A. Pilsbry & J.H. Ferriss, 1910 - (POLYGYRIDAE)
- levettei heterodonta, Ashmunella levettei heterodonta H.A. Pilsbry, 1905 - (POLYGYRIDAE)
- levettei varicifera, Ashmunella levettei varicifera C.M.F. Ancey, 1901 - (POLYGYRIDAE)
- Levia, syn of: Genus Fartulum Carpenter, 1857 † (CAECIDAE) (FOSSIL)
- leviangulata, Terelimella leviangulata C.R. Laws, 1950 † - (PYRAMIDELLIDAE) (FOSSIL)
- leviathan, Lyncina leviathan (F.A. Schilder & M. Schilder, 1937) - (CYPRAEIDAE)
- leviathan, Cypraea leviathan F.A. Schilder & M. Schilder, 1937 - syn of: Lyncina leviathan (F.A. Schilder & M. Schilder, 1937) - (CYPRAEIDAE)
- leviathan, Leviathania leviathan (Pictet & Campiche, 1864 †) - (LEVIATHANIIDAE) (FOSSIL)
- leviathan bouteti, Lyncina leviathan bouteti (C.M. Burgess & D.S. Arnette, 1981) - (CYPRAEIDAE)
- leviathan titan, Lyncina leviathan titan F.A. Schilder & M. Schilder, 1962 - (CYPRAEIDAE)
- Leviathania, Genus Leviathania Golovinova & Korotkov, 1986 † (LEVIATHANIIDAE) (FOSSIL)
- LEVIATHANIIDAE Harzhauser & Schneider, 2014 † - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-LITTORINOIDEA [Superfamily]) (FOSSIL)
- levibasis, Calliostoma levibasis (J.T. Kuroda & T. Habe, 1971) - (CALLIOSTOMATIDAE)
- levibasis, Cepolis levibasis E.G. Vanatta, 1923 - (CEPOLIDAE)
- Levibuchiola, Genus Levibuchiola Grimm, 1998 † (BUCHIOLIDAE) (FOSSIL)
- levicallis, Daphnella levicallis L.H. Poorman, 1983 - (RAPHITOMIDAE)
- levicardo, Mulinia levicardo (E.A. Smith, 1881) - (MACTRIDAE)
- levicarinatus, Euomphalus levicarinatus E.L. Yochelson, 1956 † - (EUOMPHALIDAE) (FOSSIL)
- levicarinatus, Teretiopsis levicarinatus Y.I. Kantor & A.V. Sysoev, 1989 - (RAPHITOMIDAE)
- levicaudata, Parilimya levicaudata (A. Matsukuma, 1989) - (PARILIMYIDAE)
- levicaudata, Pholadomya levicaudata A. Matsukuma, 1989 - syn of: Parilimya levicaudata (A. Matsukuma, 1989) - (PHOLADOMYIDAE)
- Levicepolis, Subgenus Cepolis (Levicepolis) F.C. Baker, 1943 (CEPOLIDAE)
- Levicerithium, Genus Levicerithium Stephenson, 1953 † (CERITHIIDAE) (FOSSIL)
- Leviclymenia, Genus Leviclymenia Korn, 2002 † (GONIOCLYMENIIDAE) (FOSSIL)
- levicocta, Dosinia levicocta E. Fischer-Piette & D. Delmas, 1967 - syn of: Dosinia queenslandica J.M. Healy & K.L. Lamprell, 1992 - (VENERIDAE)
- Leviconcha, Subgenus Myophoria (Leviconcha) Waagen, 1907 † (MYOPHORIIDAE) (FOSSIL)
- Levicoplax, syn of: Genus Ischnochiton J.E. Gray, 1847 (ISCHNOCHITONIDAE)
- Levicoptis, Subgenus Gongylostomella (Levicoptis) M.L. Jaume & C. de la Torre, 1972 (UROCOPTIDAE)
- Levicoptis, syn of: Genus Gongylostomella H.A. Pilsbry, 1941 (UROCOPTIDAE)
- levicordata, Georissa levicordata J. Stanisic, 2010 - (HYDROCENIDAE)
- levicosta, Etrema levicosta C.F. Laseron, 1954 - (CLATHURELLIDAE)
- levicosta, Conodia levicosta Stinchcomb & Darrough, 1995 † - (MATTHEVIIDAE) (FOSSIL)
- levicostata, Ngairea levicostata J. Stanisic, 1990 - (CHAROPIDAE)
- levicostata, Diodora levicostata (E.A. Smith, 1914) - (FISSURELLIDAE)
- levicostata, Peilinia levicostata B.S. Kues, 1997 † - (OSTREIDAE) (FOSSIL)
- levicostatus, Argopecten levicostatus F. Toula, 1909 † - (PECTINIDAE) (FOSSIL)
- levicostulata, Palaina levicostulata T. Iredale, 1944 - (DIPLOMMATINIDAE)
- levicula, Euchondria levicula Newell, 1938 † - (EUCHONDRIIDAE) (FOSSIL)
- levicula, Favartia levicula (W.H. Dall, 1889) - (MURICIDAE)
- levicula, Ocenebra levicula W.H. Dall, 1889 - syn of: Favartia levicula (W.H. Dall, 1889) - (MURICIDAE)
- levicula, Murexiella levicula W.H. Dall, 1889 - syn of: Favartia levicula (W.H. Dall, 1889) - (MURICIDAE)
- levicula, Euspira levicula (A.E. Verrill, 1880) - (NATICIDAE)
- leviculina, Cernuella leviculina É.A.A. Locard, 1894 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- leviculus, Goniatites leviculus Miller & M.J. Faber, 1892 † - syn of: Sulcogirtyoceras limatum (Miller & M.J. Faber, 1892 †) - (GONIATITIDAE) (FOSSIL)
- leviculus, Murex leviculus W.H. Dall, 1889 - syn of: Favartia levicula (W.H. Dall, 1889) - (MURICIDAE)
- Levidens, Genus Levidens I. Hyman, 2007 (HELICARIONIDAE)
- levidensis, Oenopota levidensis (P.P. Carpenter, 1864) - (MANGELIIDAE)
- levidensis, Acrocoelites levidensis (C.T. Simpson, 1855 †) - (MEGATEUTHIDIDAE) (FOSSIL)
- levidensis, Eulimella levidensis A. Peñas & E. Rolán, 1997 - (PYRAMIDELLIDAE)
- levieuxi, Imperturbatia levieuxi G. Nevill & H. Nevill, 1871 - syn of: Silhouettia silhouettae (E.C. Von Martens, 1898) - (STREPTAXIDAE)
- levifoliata, Scala levifoliata R. Murdoch & H.H. Suter, 1906 - syn of: Murdochella levifoliata (R. Murdoch & H.H. Suter, 1906) - (EPITONIIDAE)
- levifoliata, Murdochella levifoliata (R. Murdoch & H.H. Suter, 1906) - (NYSTIELLIDAE)
- levifrons, Cardiomya levifrons (B.C. Cotton, 1930) - (CUSPIDARIIDAE)
- levifusoides, Cornulina levifusoides A.A. Olsson, 1928 † - (MELONGENIDAE) (FOSSIL)
- Levifusus, Genus Levifusus Conrad, 1865 † (ECHINOFULGURIDAE) (FOSSIL)
- levigata, Diacria levigata J.E. Gray, 1850 - syn of: Diacavolinia longirostris (H.M.D. de Blainville, 1821) - (CAVOLINIIDAE)
- levigata, Hyalaea levigata L.F.A. Souleyet, 1852 - syn of: Diacavolinia longirostris (H.M.D. de Blainville, 1821) - (CAVOLINIIDAE)
- levigata, Strophiops levigata (C.J. Maynard, 1889) - (CERIONIDAE)
- levigata, Crittendenia levigata H. Guo, 1985 † - syn of: Claraia griesbachi (Bittner, 1899 †) - (CLARAIIDAE) (FOSSIL)
- levigata, Columbella levigata P.L. Duclos, 1848 - syn of: Rhombinella laevigata (C. Linnaeus, 1758) - (COLUMBELLIDAE)
- levigata, Limaria levigata A. Risso, 1826 - syn of: Limaria hians (J.F. Gmelin, 1792) - (LIMIDAE)
- levigata, Leopoldia levigata (Busnardo & Thieuloy, 1989 †) - (NEOCOMITIDAE) (FOSSIL)
- levigata, Claraia levigata Bittner, 1899 † - syn of: Claraia griesbachi (Bittner, 1899 †) - (PTERINOPECTINIDAE) (FOSSIL)
- levigata, Sinezona levigata (T. Iredale, 1908) - (SCISSURELLIDAE)
- levigata, Pseudoscenella levigata Parkhaev & Demidenko, 2010 † - (STENOTHECIDAE) (FOSSIL)
- levigatissima, Zebina levigatissima G.P. Deshayes, 1861 † - (ZEBINIDAE) (FOSSIL)
- levigatum, Corculum levigatum P. Bartsch, 1947 - syn of: Corculum cardissa laevigatum (P. Bartsch, 1947) - (CARDIIDAE)
- levigatum, Ptychoceras levigatum Egoian, 1969 † - (PTYCHOCERATIDAE) (FOSSIL)
- levigatus, Straparollus levigatus Léveillé, 1835 † - (EUOMPHALIDAE) (FOSSIL)
- levigatus, Juvavites levigatus Tozer, 1994 † - (JUVAVITIDAE) (FOSSIL)
- levigatus, Leiosolenus levigatus J.R.C. Quoy & J.P. Gaimard, 1835 - syn of: Leiosolenus laevigata (J.R.C. Quoy & J.P. Gaimard, 1835) - (MYTILIDAE)
- levii, Fissidentalium levii V. Scarabino, 1995 - (DENTALIIDAE)
- levii, Timbellus levii (R. Houart, 1988) - (MURICIDAE)
- levii, Leptotrophon levii R. Houart, 1995 - (MURICIDAE)
- levii, Pseudohinnites levii H.H. Dijkstra, 1989 - (PECTINIDAE)
- levii, Seguenzia levii B.A. Marshall, 1991 - (SEGUENZIIDAE)
- levilabiata, Semicassis levilabiata A. De Gregorio, 1884 - syn of: Semicassis granulata undulata (J.F. Gmelin, 1791) - (CASSIDAE)
- levilineata, Partula levilineata D.M. Crampton, 1956 - syn of: Partula navigatoria levilineata D.M. Crampton, 1956 - (PARTULIDAE)
- levilineata, Partula navigatoria levilineata D.M. Crampton, 1956 - (PARTULIDAE)
- levilirata, Eulimella levilirata R. Murdoch & H.H. Suter, 1906 - (PYRAMIDELLIDAE)
- levimana, Planctoteuthis levimana (A. Lönnberg, 1896) - (CHIROTEUTHIDAE)
- Levimarcia, syn of: Genus Marcia H. Adams & A. Adams, 1857 (VENERIDAE)
- levimargarita, Igonoia levimargarita J. Wild & J.D. Stilwell, 2016 † - (TROCHIDAE) (FOSSIL)
- Levimyrtaea, syn of: Subgenus Myrtea (Levimyrtea) Olsson, 1964 † (LUCINIDAE) (FOSSIL)
- Levimyrtea, Subgenus Myrtea (Levimyrtea) Olsson, 1964 † (LUCINIDAE) (FOSSIL)
- levinae, Cornisepta levinae J.H. McLean & D.L. Geiger, 1998 - (FISSURELLIDAE)
- levinae, Vema levinae A. Warén, 1996 - (NEOPILINIDAE)
- levinodis, Sphaerium levinodis C.A. Westerlund, 1876 - syn of: Sphaerium cornea (C. Linnaeus, 1767) - (SPHAERIIDAE)
- levior, Pomacea levior G.B. III Sowerby, 1909 - syn of: Pomacea lineata (J.B. von Spix, 1827) - (AMPULLARIIDAE)
- levior, Balea levior (N.H. Odhner, 1960) - (CLAUSILIIDAE)
- levior, Macoma levior G.B. Sowerby, 1904 - (TELLINIDAE)
- levipalatalis, Albinaria argynnis levipalatalis E. Gittenberger, 1994 - (CLAUSILIIDAE)
- levipictus, Streblites levipictus (C.F. Fontannes, 1875 †) - (OPPELIIDAE) (FOSSIL)
- Levipleura, Genus Levipleura Gründel & Nützel, 1998 † (ZYGOPLEURIDAE) (FOSSIL)
- leviplex, Hinemoa leviplex C.F. Laseron, 1959 - (PYRAMIDELLIDAE)
- leviplicata, Vanikoropsis leviplicata Cataldo, 2017 † - (VANIKORIDAE) (FOSSIL)
- Levipoma, syn of: Genus Chondropoma L. Pfeiffer, 1847 (POMATIIDAE)
- Levipyrgulina, Genus Levipyrgulina Laws, 1941 † (PYRAMIDELLIDAE) (FOSSIL)
- levis, Ambonychinia levis Isberg, 1934 † - (AMBONYCHIIDAE) (FOSSIL)
- levis, Paramytilarca levis Isberg, 1934 † - (AMBONYCHIIDAE) (FOSSIL)
- levis, Pseudocyclotus levis (L. Pfeiffer, 1855) - (ASSIMINEIDAE)
- levis, Bochianites levis Arkadiev, 2007 † - (BOCHIANITIDAE) (FOSSIL)
- levis, Bosellia levis Fernandez-Ovies & J.A. Ortea, 1986 - (BOSELLIIDAE)
- levis, Plicifusus levis R. Tiba, 1980 - (BUCCINIDAE)
- levis, Neptunea despecta levis (T.A. Verkrüzen, 1881) - (BUCCINIDAE)
- levis, Rabdotus levis W.H. Dall, 1893 - (BULIMULIDAE)
- levis, Nanotrachia levis F. Köhler & F. Criscione, 2013 - (CAMAENIDAE)
- levis, Carinopelta levis Vassiljeva, 1990 † - syn of: Carinopelta mirabilis (Yü, 1979 †) - (CARINOPELTIDAE) (FOSSIL)
- levis, Xerarionta levis (L. Pfeiffer, 1845) - (CEPOLIDAE)
- levis, Clinopistha levis F.B. Meek & A.H. Worthen, 1870 † - (CLINOPISTHIDAE) (FOSSIL)
- levis, Pseudolilliconus levis L. Bozzetti, 2012 - (CONIDAE)
- levis, Costapex levis A.E. Fedosov, M. Herrmann & P. Bouchet, 2017 - (COSTELLARIIDAE)
- levis, Laganoclymenia levis Bogoslovsky, 1979 † - (CYMACLYMENIIDAE) (FOSSIL)
- levis, Naticopsis levis (F.B. Meek, 1873 †) - (DELPHINULOPSIDAE) (FOSSIL)
- levis, Streblopteria levis Lutkevitch & Lobanova, 1960 † - (DELTOPECTINIDAE) (FOSSIL)
- levis, Lissodrillia levis P.J. Fallon, 2016 - (DRILLIIDAE)
- levis, Opalia levis T. Nakayama, 2010 - (EPITONIIDAE)
- levis, Eulima levis S. Tokunaga, 1906 † - (EULIMIDAE) (FOSSIL)
- levis, Piestochilus levis L.W. Stephenson, 1941 † - (FASCIOLARIIDAE) (FOSSIL)
- levis, Gonioclymenia levis Bogoslovsky, 1981 † - syn of: Sphenoclymenia levis (Bogoslovsky, 1981 †) - (GONIOCLYMENIIDAE) (FOSSIL)
- levis, Ivoechiton levis J.R.M. Bergenhayn, 1955 † - (GOTLANDOCHITONIDAE) (FOSSIL)
- levis, Rhynchostreon levis (L.W. Stephenson, 1953 †) - (GRYPHAEIDAE) (FOSSIL)
- levis, Amarassites levis Tatzreiter, 1980 † - (HALORITIDAE) (FOSSIL)
- levis, Dupontia levis H.H. Godwin-Austen, 1908 - (HELICARIONIDAE)
- levis, Micrarionta levis L. Pfeiffer, 1845 - syn of: Xerarionta levis (L. Pfeiffer, 1845) - (HELMINTHOGLYPTIDAE)
- levis, Orygoceras levis Gorjanovic-Kramberger, 1890 † - (HYDROBIIDAE) (FOSSIL)
- levis, Iraklimelania levis Willmann, 1981 † - (HYDROBIIDAE) (FOSSIL)
- levis, Igarkiella levis Vassiljeva, 1990 † - syn of: Carinopelta mirabilis (Yü, 1979 †) - (IGARKIELLIDAE) (FOSSIL)
- levis, Epijuvavites levis Krystyn, 1982 † - (JUVAVITIDAE) (FOSSIL)
- levis, Dzhaprakoceras levis Riley, 1996 † - (MAXIGONIATITIDAE) (FOSSIL)
- levis, Pachydomus levis Sowerby, 1838 † - syn of: Pyramus laevis (Sowerby, 1838 †) - (MEGADESMIDAE) (FOSSIL)
- levis, Poirieria levis F. Traub, 1979 † - (MURICIDAE) (FOSSIL)
- levis, Lepsiella levis J.C. Verco, 1895 - syn of: Haustrum flindersi (A. Adams & G.F. Angas, 1864) - (MURICIDAE)
- levis, Nassarius levis D. Abbate & D.C. Cavallari, 2013 - (NASSARIIDAE)
- levis, Euspira levis (E.A. Smith, 1896) - (NATICIDAE)
- levis, Benthoctopus levis (W.E. Hoyle, 1885) - (OCTOPODIDAE)
- levis, Euvaricella levis (C.B. Adams, 1849) - (OLEACINIDAE)
- levis, Austroworthenia levis P.A. Maxwell, 1961 † - (PLEUROTOMARIIDAE) (FOSSIL)
- levis, Pseudohyria levis (H. Guo, 1986 †) - (PSEUDOHYRIIDAE) (FOSSIL)
- levis, Liotrigonioides levis H. Guo, 1986 † - syn of: Pseudohyria levis (H. Guo, 1986 †) - (PSEUDOHYRIIDAE) (FOSSIL)
- levis, Pugnellus levis L.W. Stephenson, 1927 † - syn of: Bizarrus abnormalis (B. Wade, 1926 †) - (PUGNELLIDAE) (FOSSIL)
- levis, Phrixgnathus levis (H.H. Suter, 1913) - (PUNCTIDAE)
- levis, Turbonilla levis Adams, 1850 - (PYRAMIDELLIDAE)
- levis, Xanthodaphne levis A.V. Sysoev, 1988 - (RAPHITOMIDAE)
- levis, Rectoclymenia levis Pajchlowa, 1972 † - (RECTOCLYMENIIDAE) (FOSSIL)
- levis, Ectinochilus levis L.R. Cox, 1930 † - (RIMELLIDAE) (FOSSIL)
- levis, Dinarites levis Mojsisovics, 1886 † - syn of: Timoceras glacialis (Mojsisovics, 1886 †) - (SIBIRITIDAE) (FOSSIL)
- levis, Kruppomenia levis A.H. Scheltema & C.F.C. Schander, 2000 - (SIMROTHIELLIDAE)
- levis, Sphenoclymenia levis (Bogoslovsky, 1981 †) - (SPHENOCLYMENIIDAE) (FOSSIL)
- levis, Sundaites levis (Haniel, 1915 †) - (SUNDAITIDAE) (FOSSIL)
- levis, Anticlimax levis F. Rubio & E. Rolán, 2014 - (TORNIDAE)
- levis, Marionia levis C.N.E. Eliot, 1904 - (TRITONIIDAE)
- levis, Anoma levis C.B. Adams, 1851 - (UROCOPTIDAE)
- levis, Fagesia levis Renz, 1982 † - syn of: Fagesia peroni Pervinquiére, 1907 † - (VASCOCERATIDAE) (FOSSIL)
- levis balteata, Anoma levis balteata H.A. Pilsbry, 1903 - syn of: Anoma levis C.B. Adams, 1851 - (UROCOPTIDAE)
- levis canescens, Xerarionta levis canescens (A. Adams & L.A. Reeve, 1848) - (CEPOLIDAE)
- levis crassula, Xerarionta levis crassula (W.H. Dall, 1900) - (CEPOLIDAE)
- levisa, Eratoidea levisa T. McCleery, 2011 - (MARGINELLIDAE)
- levisarcobelum, Deroceras levisarcobelum A.J. de Winter & L.J.M. Butot, 1986 - (AGRIOLIMACIDAE)
- levisculpta, Levipyrgulina levisculpta E. Robba, 2013 † - (PYRAMIDELLIDAE) (FOSSIL)
- levisculpturata, Turbonilla levisculpturata A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- levisense, Protocycloceras levisense Ulrich & al., 1944 † - (PROTOCYCLOCERATIDAE) (FOSSIL)
- levisense, Rudolfoceras levisense Ulrich & al., 1944 † - (RUDOLFOCERATIDAE) (FOSSIL)
- levisettii, Porpoceras levisettii Kovács, 2014 † - (DACTYLIOCERATIDAE) (FOSSIL)
- levislyrata, Turbonilla levislyrata A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- levismaculosa, Gregorioiscala levismaculosa E.F. Garcia, 2004 - (EPITONIIDAE)
- Levisoceras, Genus Levisoceras Foerste, 1925 † (ELLESMEROCERATIDAE) (FOSSIL)
- levisoni, Ammonites levisoni C.T. Simpson, 1843 † - syn of: Hildaites levisoni (C.T. Simpson, 1843 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- levisoni, Hildaites levisoni (C.T. Simpson, 1843 †) - (HILDOCERATIDAE) (FOSSIL)
- levispinosum, Stephopoma levispinosum R. Bieler, 1997 - (VERMETIDAE)
- levissima, Cypraeovula iutsui levissima L. Raybaudi Massilia, 1995 - (CYPRAEIDAE)
- levissima, Eulimella levissima L. de Folin, 1870 - syn of: Cima minima (J.G. Jeffreys, 1858) - (PYRAMIDELLIDAE)
- levissima, Dosinia levissima E. Fischer-Piette & D. Delmas, 1967 - (VENERIDAE)
- levissimum, Pisidium levissimum V. Sterki, 1906 - syn of: Pisidium casertanum (Poli, 1791) - (SPHAERIIDAE)
- levissimus, Unio levissimus A. De Gregorio, 1914 - syn of: Potamilus ohiensis C.S. Rafinesque, 1820 - (UNIONIDAE)
- Levistemma, Genus Levistemma M.L. Jaume & C. de la Torre, 1972 (UROCOPTIDAE)
- levistimpsoni, Conasprelloides levistimpsoni J.K. Tucker, 2013 - (CONIDAE)
- levistratum, Planorbis levistratum H.B. Preston, 1912 - syn of: Biomphalaria peregrina (A.V.M.D. D'Orbigny, 1835) - (PLANORBIDAE)
- levistriata, Natica levistriata A.J. Jukes-Browne, 1877 † - (NATICIDAE) (FOSSIL)
- levistriata, Partula levistriata D.M. Crampton, 1956 - (PARTULIDAE)
- levistriata, Paleyoldia levistriata (F.B. Meek & A.H. Worthen, 1860 †) - (SAREPTIDAE) (FOSSIL)
- levisulcatum, Microfragum levisulcatum E.A. Smith, 1903 - syn of: Microfragum erugatum (R. Tate, 1889) - (CARDIIDAE)
- levitata, Pteria levitata T. Iredale, 1939 - syn of: Pteria heteroptera (J.B.P.A. Lamarck, 1819) - (PTERIIDAE)
- leviteni, Darioconus leviteni J.K. Tucker, M.J. Tenorio & A. Chaney, 2011 - (CONIDAE)
- levitesta, Acesta levitesta (Finlay, 1927 †) - (LIMIDAE) (FOSSIL)
- leviuscula, Corbicula leviuscula T. Prime, 1867 - (CYRENIDAE)
- leviuscula, Fulgoraria leviuscula H.A. Rehder, 1969 - (VOLUTIDAE)
- leviusulcum, Loxonema leviusulcum de Koninck, 1881 † - (LOXONEMATIDAE) (FOSSIL)
- levivarius, Plocamopherus levivarius (F.D. Abraham, 1876) - (POLYCERIDAE)
- Levizygopleura, Genus Levizygopleura Bandel, 2002 † (PSEUDOZYGOPLEURIDAE) (FOSSIL)
- levoiturieri, Unio levoiturieri É.A.A. Locard, 1893 - syn of: Unio tumidus A. Retzius, 1788 - (UNIONIDAE)
- levucana, Vaginula levucana H.R. Simroth, 1918 - syn of: Sarasinula plebeia (H. Fischer, 1898) - (VERONICELLIDAE)
- levukana, Funafutia levukana (Smith, 1885) - (LUCINIDAE)
- levukensis, Anacithara levukensis (R.B. Watson, 1881) - (HORAICLAVIDAE)
- levukensis, Nassa levukensis R.B. Watson, 1882 - syn of: Tritia casta (A.A. Gould, 1850) - (NASSARIIDAE)
- levukensis, Obesula levukensis (R.B. Watson, 1880) - (TRIPHORIDAE)
- levukensis, Timoclea levukensis (E.A. Smith, 1885) - (VENERIDAE)
- levyi, Dinocardium levyi H.G. Richards, 1953 † - (CARDIIDAE) (FOSSIL)
- levyi, Trigonia levyi H.A. Leanza, 1993 † - (TRIGONIIDAE) (FOSSIL)
- Levytrigonia, Genus Levytrigonia M.R. Cooper, 2015 † (IOTRIGONIIDAE) (FOSSIL)
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