- Laua, Subgenus Diastole (Laua) F.C. Baker, 1938 (EUCONULIDAE)
- laubei, Eutomoceras laubei F.B. Meek, 1877 † - (CERATITIDAE) (FOSSIL)
- laubei, Naticopsis laubei E.A.L. Kittl, 1892 † - (DELPHINULOPSIDAE) (FOSSIL)
- laubei, Coroceras laubei (Mojsisovics, 1875 †) - (LOBITIDAE) (FOSSIL)
- laubei, Schafhaeutlia laubei (Bittner, 1895 †) - (LUCINIDAE) (FOSSIL)
- laubei, Gonodon laubei Bittner, 1895 † - syn of: Schafhaeutlia laubei (Bittner, 1895 †) - (LUCINIDAE) (FOSSIL)
- laubei, Nautilus laubei Mojsisovics, 1873 † - syn of: Grypoceras laubei (Mojsisovics, 1873 †) - (NAUTILIDAE) (FOSSIL)
- laubei, Laubetrochus laubei (J. Gründel, 2012 †) - (NODODELPHINULIDAE) (FOSSIL)
- laubei, Kheraites laubei (M. von Neumayr, 1871 †) - (OPPELIIDAE) (FOSSIL)
- laubei, Kokenella laubei E.A.L. Kittl, 1891 † - (PORCELLIIDAE) (FOSSIL)
- laubei, Pseudomelania laubei A.E.M. Cossmann, 1885 † - syn of: Pseudomelania trochiformis (L.É.S. Piette, 1857 †) - (PSEUDOMELANIIDAE) (FOSSIL)
- laubei, Pseudotritonium laubei (E.A.L. Kittl 1894 †) - (PSEUDOTRITONIIDAE) (FOSSIL)
- laubei, Schizogonium laubei E.A.L. Kittl, 1891 † - (SCHIZOGONIIDAE) (FOSSIL)
- laubei, Grypoceras laubei (Mojsisovics, 1873 †) - (TAINOCERATIDAE) (FOSSIL)
- laubei, Daxatina laubei Tozer, 1994 † - (TRACHYCERATIDAE) (FOSSIL)
- Laubeia, Genus Laubeia Bittner, 1895 † (BIVALVIA INCERTAE SEDIS) (FOSSIL)
- Laubella, Genus Laubella Kittl, 1891 † (LAUBELLIDAE) (FOSSIL)
- LAUBELLIDAE Cox, 1960 † - Family (GASTROPODA-VETIGASTROPODA [Subclass]-SEGUENZIOIDEA [Superfamily]) (FOSSIL)
- Laubetrochus, Genus Laubetrochus Gründel & Hostettler, 2014 † (NODODELPHINULIDAE) (FOSSIL)
- laubieri, Siphonodentalium laubieri P. Bouchet & A. Warén, 1979 - (GADILIDAE)
- laubieri, Imeroherpia laubieri C. Handl, 2002 - (IMEROHERPIIDAE)
- laubieri, Ectenagena laubieri (T.A. Okutani & B. Métivier, 1986) - (VESICOMYIDAE)
- laubieri kurilensis, Ectenagena laubieri kurilensis (T.A. Okutani & S. Kato, 2009) - (VESICOMYIDAE)
- laubieri kurilensis, Ectenagena laubieri kurilensis T.A. Okutani & S. Kato, 2009 - syn of: Ectenagena laubieri kurilensis (T.A. Okutani & S. Kato, 2009) - (VESICOMYIDAE)
- Laubiericoncha, Genus Laubiericoncha R. von Cosel & K. Olu, 2008 (VESICOMYIDAE)
- Laubierina, Genus Laubierina Warén, 1990 † (LAUBIERINIDAE) (FOSSIL)
- Laubierina, syn of: Genus Akibumia J.T. Kuroda & T. Habe in J.T. Kuroda, 1959 (LAUBIERINIDAE)
- LAUBIERINIDAE Warén & Bouchet, 1990 - Family (GASTROPODA-CAENOGASTROPODA [Subclass]-LITTORINIMORPHA [Order]-TONNOIDEA [Superfamily])
- Laubopsis, Genus Laubopsis Bandel, 2007 † (TRICOLNATICOPSIDAE) (FOSSIL)
- laubrierei, Fusiturris laubrierei (A.E.M. Cossmann, 1889 †) - (CLAVATULIDAE) (FOSSIL)
- laubrierei, Tenuiscala laubrierei M.E.A. de Boury, 1887 † - (EPITONIIDAE) (FOSSIL)
- laubrierei, Rimula laubrierei A.E.M. Cossmann, 1888 † - (FISSURELLIDAE) (FOSSIL)
- laubrierei, Hipponix laubrierei A.E.M. Cossmann, 1888 † - (HIPPONICIDAE) (FOSSIL)
- laubrierei, Melanopsis laubrierei L.L.H. Carez, 1879 † - (MELANOPSIDAE) (FOSSIL)
- laubrierei, Phaxas laubrierei Lefevre & A. Watelet, 1877 † - (PHARIDAE) (FOSSIL)
- laubrierei, Siphonaria laubrierei A.E.M. Cossmann, 1889 † - (SIPHONARIIDAE) (FOSSIL)
- Laubriereia, syn of: Genus Aligena I. Lea, 1843 (LASAEIDAE)
- laudabile, Cyclonema laudabile J. Perner, 1903 † - (PLATYCERATIDAE) (FOSSIL)
- laudabilis, Alaionema laudabilis (J. Perner, 1903 †) - (EUOMPHALIDAE) (FOSSIL)
- laudabilis, Ectomaria laudabilis J. Perner, 1907 † - syn of: Kaseiella laudabilis (J. Perner, 1907 †) - (LOPHOSPIRIDAE) (FOSSIL)
- laudabilis, Kaseiella laudabilis (J. Perner, 1907 †) - (MURCHISONIOIDEA (UNASSIGNED)) (FOSSIL)
- laudabilis, Portlandia laudabilis Yokoyama, 1924 † - (YOLDIIDAE) (FOSSIL)
- laudandus, Fusitriton laudandus H.J. Finlay, 1927 - (RANELLIDAE)
- laudata, Terebra laudata Rossi de Garcia & J.L. Levy, 1959 † - (TEREBRIDAE) (FOSSIL)
- laudinensis, Umbraculum laudinensis (Melleville, 1843) - (UMBRACULIDAE)
- laudoni, Platyschisma laudoni Rollins, 1975 † - (PLATYCERATIDAE) (FOSSIL)
- laudunense, Umbraculum laudunense (Melleville, 1843 †) - (UMBRACULIDAE) (FOSSIL)
- laudunensis, Austromactra laudunensis (A. Watelet, 1853 †) - (MACTRIDAE) (FOSSIL)
- laudunensis, Pseudoliva laudunensis (J.L.M. Defrance, 1826 †) - (PSEUDOLIVIDAE) (FOSSIL)
- laudunensis, Fragilia laudunensis G.P. Deshayes, 1857 † - (TELLINIDAE) (FOSSIL)
- laudunensis, Omalaxis laudunensis (J.L.M. Defrance, 1828 †) - (TURRITELLIDAE) (FOSSIL)
- lauensis, Gadilina lauensis V. Scarabino & F. Scarabino, 2010 - (GADILINIDAE)
- lauensis, Gonatorhaphe lauensis W.J. Clench, 1949 - (NEOCYCLOTIDAE)
- lauensis, Laevichlamys lauensis (H.S. Ladd, 1945 †) - (PECTINIDAE) (FOSSIL)
- laueri, Darioconus laueri E. Monnier & L. Limpalaër, 2013 - (CONIDAE)
- laufonensis, Trigonia laufonensis (Rollier, 1912 †) - (TRIGONIIDAE) (FOSSIL)
- Laugeites, Genus Laugeites Donovan, 1964 † (PERISPHINCTIDAE) (FOSSIL)
- laugeri, Calliostoma laugeri B.C.M. Payraudeau, 1826 - syn of: Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (CALLIOSTOMATIDAE)
- laughofferi, Helicodonta laughofferi A.J. Wagner, 1912 - (HELICODONTIDAE)
- laughofferi, Aegopis septentrionalis laughofferi A.J. Wagner, 1914 - (ZONITIDAE)
- laugieri, Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (CALLIOSTOMATIDAE)
- laugieri, Dentalium laugieri F.P. Jousseaume, 1894 - syn of: Dentalium reevei P. Fischer, 1871 - (DENTALIIDAE)
- laugieri, Trochus laugieri B.C.M. Payraudeau, 1826 - syn of: Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (TROCHIDAE)
- laugieri floreanae, Calliostoma laugieri floreanae P. Parenzan, 1970 - syn of: Calliostoma laugieri florianae P. Parenzan, 1970 - (CALLIOSTOMATIDAE)
- laugieri florianae, Calliostoma laugieri florianae P. Parenzan, 1970 - (CALLIOSTOMATIDAE)
- laugieri fulva, Calliostoma laugieri fulva P.M. Pallary, 1900 - syn of: Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (CALLIOSTOMATIDAE)
- laugieri olivaceoconcolor, Trochus laugieri olivaceoconcolor M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1884 - syn of: Calliostoma laugieri (B.C.M. Payraudeau, 1826) - (TROCHIDAE)
- laugieri seriopunctatus, Calliostoma laugieri seriopunctatus (H.M.D. de Blainville, 1830) - (CALLIOSTOMATIDAE)
- laugieri spongiarum, Calliostoma laugieri spongiarum (M.E.J. Bucquoy, P. Dautzenberg & G.F. Dollfus, 1885) - (CALLIOSTOMATIDAE)
- laugieri viola, Calliostoma laugieri viola (B.C.M. Payraudeau, 1826) - (CALLIOSTOMATIDAE)
- Lauhala, Subgenus Trochomorpha (Lauhala) F.C. Baker, 1941 (TROCHOMORPHIDAE)
- laumonti, Laumontoceras laumonti (Barrande, 1865 †) - (JOVELLANIIDAE) (FOSSIL)
- laumonti, Olivella laumonti (J.B.P.A. Lamarck †) - (OLIVELLIDAE) (FOSSIL)
- laumontiana, Olivancillaria laumontiana (J.B.P.A. Lamarck, 1804 †) - (OLIVIDAE) (FOSSIL)
- Laumontoceras, Genus Laumontoceras Foerste, 1926 † (JOVELLANIIDAE) (FOSSIL)
- launayi, Pachydiscus launayi (de Grossouvre, 1894 †) - (DESMOCERATIDAE) (FOSSIL)
- launcestonensis, Anoglypta launcestonensis J.R. Bourguignat, 1880 - (CARYODIDAE)
- launcestonensis, Beddomeia launcestonensis (G. Johnston, 1872) - (HYDROBIIDAE)
- launcetonensis, Anoglypta launcetonensis (L.A. Reeve, 1853) - (CARYODIDAE)
- Lauopa, Genus Lauopa G.A. Solem, 1983 (CHAROPIDAE)
- laura, Pleuropoma laciniosa laura M.C. Neal, 1934 - (HELICINIDAE)
- Laura, syn of: Genus Placida S. Trinchese, 1877 (LIMAPONTIIDAE)
- laura, Comitas laura (K.H.J. Thiele, 1925) - (PSEUDOMELATOMIDAE)
- laura, Turbonilla laura K.H.J. Thiele, 1925 - (PYRAMIDELLIDAE)
- lauracina, Helicella lauracina P. Fagot - syn of: Helicella bolenensis É.A.A. Locard, 1882 - (HYGROMIIDAE)
- laurae, Beyrichites laurae Renz & Renz, 1948 † - (BEYRICHITIDAE) (FOSSIL)
- laurae, Venericardia laurae A. Brongniart, 1823 † - (CARDITIDAE) (FOSSIL)
- laurae, Synthopsis laurae A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- laurae, Kitchinites laurae Macellari, 1986 † - (DESMOCERATIDAE) (FOSSIL)
- laurae, Melanella laurae (H.B.S. Friele, 1886) - (EULIMIDAE)
- laurae, Lepidozona laurae A. Ferreira, 1985 - (ISCHNOCHITONIDAE)
- laurae, Dendrochiton laurae (S.S. Berry, 1963) - (LEPIDOCHITONIDAE)
- laurae, Leptochiton laurae E. Schwabe & J. Sellanes, 2010 - (LEPTOCHITONIDAE)
- laurae, Mopalia laurae S.S. Berry, 1963 - syn of: Dendrochiton laurae (S.S. Berry, 1963) - (MOPALIIDAE)
- laurae, Pterynotus laurae R. Houart, 1997 - (MURICIDAE)
- laurae, Favartia laurae (E.H. Vokes, 1970) - (MURICIDAE)
- laurae, Notocochlis laurae P.M.S. Costa & G. Pastorino, 2012 - (NATICIDAE)
- laurae, Turbonilla laurae A. Peñas & E. Rolán, 2010 - (PYRAMIDELLIDAE)
- laurae, Alvania laurae M.M. Brunetti & G. Vecchi, 2012 † - (RISSOIDAE) (FOSSIL)
- laurae, Rissoina laurae (L. de Folin, 1870) - (RISSOINIDAE)
- laurae, Juga laurae C. Goodrich, 1944 - (SEMISULCOSPIRIDAE)
- laurae, Purpurcapsula laurae D. Fehse, 2015 - (TRIVIIDAE)
- laurae, Clanculus laurae A. Cecalupo, G. Buzzurro & M. Mariani, 2008 - (TROCHIDAE)
- laurae, Discotropites laurae (Mojsisovics, 1893 †) - (TROPITIDAE) (FOSSIL)
- laurae, Petaloconchus laurae D. Scuderi, 2012 - (VERMETIDAE)
- laurae neglecta, Venericardia laurae neglecta O.G. Michelotti † - (CARDITIDAE) (FOSSIL)
- lauraea, Tinnyea lauraea (Matheron, 1842 †) - (PACHYCHILIDAE) (FOSSIL)
- lauraguaisiana, Candidula lauraguaisiana É.A.A. Locard, 1883 - syn of: Candidula gigaxii (L. Pfeiffer, 1850) - (HYGROMIIDAE)
- laurani, Achatinella apexfulva laurani D.A. Welch, 1942 - (ACHATINELLIDAE)
- laurauae, Volvarina laurauae J. Espinosa & J.A. Ortea, 2007 - (MARGINELLIDAE)
- laurea, Eulimella laurea A. Peñas & E. Rolán, 2016 - (PYRAMIDELLIDAE)
- laureae, Volvarina laureae J. Espinosa & J.A. Ortea, 2012 - (MARGINELLIDAE)
- laureani, Cerion laureani W.J. Clench & C.G. Aguayo, 1951 - (CERIONIDAE)
- laureani, Liguus fasciatus laureani C. de la Torre, 1950 - (ORTHALICIDAE)
- laureani, Chondropometes segregatum laureani C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- laureani, Eutudorops undosa laureani (C. de la Torre & P. Bartsch, 1941) - (POMATIIDAE)
- laureani, Ventricochis laureani C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- laureanus, Microceramus laureanus C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- laureatum, Calliostoma laureatum (C. Mayer, 1874 †) - (CALLIOSTOMATIDAE) (FOSSIL)
- Laureloceras, Genus Laureloceras Flower, 1949 † (BARRANDOCERATIDAE) (FOSSIL)
- laurenae, Conus laurenae E.J. Petuch, 1994 † - (CONIDAE) (FOSSIL)
- laurenci, Asklepioceras laurenci McLearn, 1940 † - (TRACHYCERATIDAE) (FOSSIL)
- laurensi, Aneurystoma laurensi (J.P.S. Grateloup, 1832 † †) - (CANCELLARIIDAE) (FOSSIL)
- laurensi, Eatonina laurensi R.G. Moolenbeek & M.J. Faber, 1991 - (CINGULOPSIDAE)
- laurenti, Clathropsis laurenti Cecalupo & Perugia, 2017 - (CERITHIOPSIDAE)
- laurenti, Corbicula laurenti P.M. Pallary, 1909 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- laurenti, Iberus gualtieranus laurenti J.R. Bourguignat, 1870 - (HELICIDAE)
- laurenti, Volvarina laurenti J. Espinosa & J.A. Ortea, 2012 - (MARGINELLIDAE)
- laurenti, Ostrea laurenti J.F. Gmelin, 1791 - syn of: Euvola laurenti (J.F. Gmelin, 1791) - (OSTREIDAE)
- laurenti, Euvola laurenti (J.F. Gmelin, 1791) - (PECTINIDAE)
- laurenti, Euvola laurenti J.F. Gmelin, 1791 - syn of: Euvola laurenti (J.F. Gmelin, 1791) - (PECTINIDAE)
- laurenti, Retusa laurenti † - (RETUSIDAE) (FOSSIL)
- laurenti, Rimellopsis powisii laurenti R. Duchamps, 1992 - (ROSTELLARIIDAE)
- laurenti, Trivellona laurenti Fehse, 2017 - (TRIVIIDAE)
- laurenti intermedia, Retusa laurenti intermedia (R.A. Philippi, 1843) † - (RETUSIDAE) (FOSSIL)
- laurentia, Ceratopea laurentia Billings, 1859 † - syn of: Ceratopea laurentina (Billings, 1859 †) - (RAPHISTOMATIDAE) (FOSSIL)
- laurentiana, Aglaja laurentiana (R.B. Watson, 1897) - (AGLAJIDAE)
- laurentiana, Astarte laurentiana C. Lyell, 1845 - syn of: Astarte montagui (L.W. Dillwyn, 1817) - (ASTARTIDAE)
- laurentiana, Excussispira laurentiana (O.F. von Möllendorff, 1885) - (CLAUSILIIDAE)
- laurentiana, Amphorella laurentiana H.A. Pilsbry, 1908 - syn of: Amphorella iridescens T.V. Wollaston, 1878 - (FERUSSACIIDAE)
- laurentiana, Purpura laurentiana S.A.A. Petit De La Saussaye, 1850 - syn of: Drupina grossularia (P.F. Röding, 1798) - (MURICIDAE)
- laurentiana soror, Astarte laurentiana soror W.H. Dall, 1903 - syn of: Astarte montagui (L.W. Dillwyn, 1817) - (ASTARTIDAE)
- laurentiensis, Conotheca laurentiensis Landing & Bartowski, 1996 † - syn of: Conotheca australiensis Bengtson & al., 1990 † - (CIRCOTHECIDAE) (FOSSIL)
- laurentii, Bostryx laurentii G.B. I Sowerby, 1833 - syn of: Bostryx modestus (W.J. Broderip, 1832) - (BULIMULIDAE)
- laurentina, Raphistomina laurentina Billings, 1859 † - syn of: Ceratopea laurentina (Billings, 1859 †) - (HOLOPEIDAE) (FOSSIL)
- laurentina, Ceratopea laurentina (Billings, 1859 †) - (RAPHISTOMATIDAE) (FOSSIL)
- laurentinus, Sphenosphaera laurentinus (Twenhofel, 1928 †) - (BELLEROPHONTIDAE) (FOSSIL)
- Laurentiphysa, Genus Laurentiphysa J.D. Taylor, 2003 (PHYSIDAE)
- lauretanae, Terebra lauretanae J.E. Tenison-Woods, 1878 - (TEREBRIDAE)
- lauretanae tabifica, Terebra lauretanae tabifica T. Iredale, 1925 - syn of: Terebra lauretanae J.E. Tenison-Woods, 1878 - (TEREBRIDAE)
- laurettae, Euclia laurettae R.E. Petit & M.G. Harasewych, 1998 - (CANCELLARIIDAE)
- laurettamarrae, Cochlespira laurettamarrae E.F. Garcia, 2010 - (COCHLESPIRIDAE)
- Lauria, Genus Lauria J.E. Gray in W.H. Turton, 1840 (LAURIIDAE)
- lauriatae, Schilderia lauriatae L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- lauriatrageae, Ocinebrina lauriatrageae L. Ceulemans & al., 2016 † - (MURICIDAE) (FOSSIL)
- lauricochae, Sphaerium lauricochae R.A. Philippi, 1869 - (SPHAERIIDAE)
- lauricocheae, Biomphalaria lauricocheae (R.A. Philippi, 1869) - (PLANORBIDAE)
- lauriensis, Ambigua fuscolabiata lauriensis (W. Kobelt, 1905) - (HELICIDAE)
- lauriensis, Cernuella lauriensis W. Kobelt, 1907 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- laurienti, Euchondria laurienti Etheridge, 1892 † - (EUCHONDRIIDAE) (FOSSIL)
- laurieri, Indojuvavites laurieri Tozer, 1994 † - (JUVAVITIDAE) (FOSSIL)
- LAURIIDAE Steenberg, 1925 - Family (GASTROPODA-HETEROBRANCHIA [Subclass]-PULMONATA [Infraclass]-STYLOMMATOPHORA [Order]-ORCULOIDEA [Superfamily])
- laurijona, Hemicycla laurijona M.R. Alonso & C.M. Ibáñez, 2007 - (HELICIDAE)
- laurillardiana, Stagnicola laurillardiana (Noulet, 1854 †) - (LYMNAEIDAE) (FOSSIL)
- laurina, Ningbingia laurina G.A. Solem, 1981 - (CAMAENIDAE)
- laurina, Terebra laurina R.B. Hinds, 1844 - syn of: Impages cinerea (I. von Born, 1778) - (TEREBRIDAE)
- laurinea, Leiostyla laurinea R.T. Lowe, 1852 - (LAURIIDAE)
- Laurinella, syn of: Genus Truncatellina R.T. Lowe, 1852 (VERTIGINIDAE)
- laurisilvae, Canaridiscus laurisilvae (Allgaier & M. Klemm, 2012) - (DISCIDAE)
- laus, Helicina laus A.J. Wagner, 1905 - (HELICINIDAE)
- laus ucayalensis, Helicina laus ucayalensis A.J. Wagner, 1911 - (HELICINIDAE)
- lauta, Engina lauta (L.A. Reeve, 1846) - (BUCCINIDAE)
- lauta, Bullina lauta W.H. Pease, 1860 - (BULLINIDAE)
- lauta, Synthopsis lauta A. Cecalupo & I. Perugia, 2013 - (CERITHIOPSIDAE)
- lauta, Latouchella lauta Yü, 1979 † - syn of: Dorispira lauta (Yü, 1979 †) - (COREOSPIRIDAE) (FOSSIL)
- lauta, Pusia lauta (L.A. Reeve, 1845) - (COSTELLARIIDAE)
- lauta, Cylichna lauta W.H. Pease, 1860 - (CYLICHNIDAE)
- lauta, Diala lauta A. Adams, 1853 - syn of: Diala suturalis (A. Adams, 1853) - (DIALIDAE)
- lauta, Clavus lauta W.H. Pease, 1867 - syn of: Clavus lamberti (R.P. Montrouzier, 1860) - (DRILLIIDAE)
- lauta, Cecilioides lauta M. Paulucci, 1886 - syn of: Cecilioides acicula (O.F. Müller, 1774) - (FERUSSACIIDAE)
- lauta, Haliotis lauta L.A. Reeve, 1846 - syn of: Haliotis semiplicata K.T. Menke, 1843 - (HALIOTIDAE)
- lauta, Socenia lauta E. Jekelius, 1944 † - (HYDROBIIDAE) (FOSSIL)
- lauta, Cernuella lauta R.T. Lowe, 1831 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- lauta, Nassa lauta F.P. Marrat, 1880 - syn of: Nassarius stimpsonianus (A. Adams, 1852) - (NASSARIIDAE)
- lauta, Oxychilus lauta É.A.A. Locard, 1899 - syn of: Oxychilus cellarius (O.F. Müller, 1774) - (OXYCHILIDAE)
- lauta, Ptilotrigonia lauta van Hoepen, 1929 † - (PTEROTRIGONIIDAE) (FOSSIL)
- lauta, Monotygma lauta (C.B. Adams, 1853) - (PYRAMIDELLIDAE)
- lauta, Dorispira lauta (Yü, 1979 †) - (RUGAECONIDAE) (FOSSIL)
- lauta, Succinea lauta A.A. Gould, 1859 - (SUCCINEIDAE)
- lauta, Tellina lauta A.A. Gould, 1850 - syn of: Tellina clathrata (G.P. Deshayes, 1835) - (TELLINIDAE)
- lauta, Terebra lauta W.H. Pease, 1869 - syn of: Hastula matheroniana (G.P. Deshayes, 1859) - (TEREBRIDAE)
- lauta, Turbinella lauta L.A. Reeve, 1847 - syn of: Turrilatirus lautus (L.A. Reeve, 1847) - (TURBINELLIDAE)
- lauta, Anodonta lauta E.C. Von Martens, 1877 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (UNIONIDAE)
- lauta, Megalovalvata lauta (W.A. Lindholm, 1909) - (VALVATIDAE)
- lauta parvula, Megalovalvata lauta parvula Kozhov, 1936 - syn of: Megalovalvata parvula (Kozhov, 1936) - (VALVATIDAE)
- lauta rostrata, Anodonta lauta rostrata W. Kobelt, 1879 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (UNIONIDAE)
- lautaroi, Miomelon lautaroi C. Nielsen & D. Frassinetti, 2007 † - (VOLUTIDAE) (FOSSIL)
- lauteborni, Unio lauteborni F. Haas, 1909 - syn of: Unio tumidus A. Retzius, 1788 - (UNIONIDAE)
- lautenschlaegeri, Corbicula lautenschlaegeri L.S. Zhidkova, 1968 † - syn of: Corbicula gabbiana Henderson, 1920 † - (CYRENIDAE) (FOSSIL)
- lautenschlageri, Panomya lautenschlageri L.S. Zhidkova, 1994 † - (HIATELLIDAE) (FOSSIL)
- lautenschlageri, Portlandella lautenschlageri Popova, 1968 † - (NUCULANIDAE) (FOSSIL)
- lauterborni, Bythiospeum sterkianum lauterborni (F. Haas, 1936) - (HYDROBIIDAE)
- lautissima, Ptilotrigonia lautissima van Hoepen, 1929 † - (PTEROTRIGONIIDAE) (FOSSIL)
- lautlingensis, Neoprionoceras lautlingensis (Rollier 1909 †) - (OPPELIIDAE) (FOSSIL)
- Lautoconus, Genus Lautoconus T.A. de M. Monterosato, 1923 (CONIDAE)
- lautoides, Melanella lautoides Finlay & J. Marwick, 1937 † - (EULIMIDAE) (FOSSIL)
- lautsi, Aegista lautsi P.B. Schmacker & O. Böttger, 1891 - (BRADYBAENIDAE)
- lautsi brachylasia, Aegista lautsi brachylasia P.B. Schmacker & O. Böttger, 1891 - (BRADYBAENIDAE)
- lautsi micra, Aegista lautsi micra H.A. Pilsbry & Y. Hirase, 1905 - (BRADYBAENIDAE)
- lautum, Cerithium lautum (W. Kobelt, 1908) - (CERITHIIDAE)
- lautum, Therioceras lautum P.A. Zhuravleva, 1972 † - syn of: Raphanites bogoslovskyi (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- lautum, Pelagoceras lautum P.A. Zhuravleva, 1972 † - syn of: Chrysoceras tumidum (P.A. Zhuravleva, 1972 †) - (DISCOSORIDA (unassigned)) (FOSSIL)
- lautum, Zospeum lautum (G.R. von Frauenfeld, 1854) - (ELLOBIIDAE)
- lautus, Drymaeus lautus A.A. Gould, 1856 - syn of: Drymaeus fallax L. Pfeiffer, 1853 - (BULIMULIDAE)
- lautus, Conus lautus L.A. Reeve, 1844 - syn of: Sciteconus mozambicus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- lautus, Turrilatirus lautus (L.A. Reeve, 1847) - (FASCIOLARIIDAE)
- lautus, Latirus lautus (L.A. Reeve, 1847) - syn of: Turrilatirus lautus (L.A. Reeve, 1847) - (FASCIOLARIIDAE)
- lautus, Euhoplites lautus (J. de C. Sowerby, 1821 †) - (HOPLITIDAE) (FOSSIL)
- lautus tumens, Anodontites lautus tumens F. Haas, 1910 - syn of: Sinanodonta woodiana (I. Lea, 1834) - (MYCETOPODIDAE)
- lauxi, Coeloceras lauxi Monestier, 1931 † - syn of: Collina lauxi (Monestier, 1931 †) - (COELOCERATIDAE) (FOSSIL)
- lauxi, Collina lauxi (Monestier, 1931 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- lava, Marginella lava W.H. Turton, 1932 - (MARGINELLIDAE)
- lavacillensis, Hippochrenes lavacillensis (A. De Gregorio, 1894 †) - (ROSTELLARIIDAE) (FOSSIL)
- lavalavus, Boucardicus lavalavus K.C. Emberton, 2002 - (CYCLOPHORIDAE)
- lavalense, Diestoceras lavalense Flower, 1952 † - (DIESTOCERATIDAE) (FOSSIL)
- lavaleyei, Alvania lavaleyei H.J. Hoenselaar & J. Goud, 1998 - (RISSOIDAE)
- lavaleyi, Alvania lavaleyi H.J. Hoenselaar & J. Goud, 1998 - syn of: Alvania lavaleyei H.J. Hoenselaar & J. Goud, 1998 - (RISSOIDAE)
- lavalleana, Corbula lavalleana D'Orbigny in R. de la Sagra, 1853 - syn of: Caryocorbula chittyana Adams, 1852 - (CORBULIDAE)
- lavalleana, Gibberula lavalleana D'Orbigny, 1842 - syn of: Gibberula lavalleeana (A.V.M.D. D'Orbigny, 1842) - (CYSTISCIDAE)
- lavalleana, Cryoturris lavalleana (A.V.M.D. D'Orbigny, 1847) - (MANGELIIDAE)
- lavalleana, Vitricythara lavalleana D'Orbigny, 1847 - syn of: Cryoturris lavalleana (A.V.M.D. D'Orbigny, 1847) - (MANGELIIDAE)
- lavalleana, Pyrgocythara lavalleana D'Orbigny, 1847 - syn of: Cryoturris lavalleana (A.V.M.D. D'Orbigny, 1847) - (MANGELIIDAE)
- lavalleana, Marginella lavalleana D'Orbigny, 1842 - syn of: Gibberula lavalleeana (A.V.M.D. D'Orbigny, 1842) - (MARGINELLIDAE)
- lavalleanus, Brachidontes lavalleanus D'Orbigny in R. de la Sagra, 1853 - syn of: Brachidontes exustus (C. Linnaeus, 1758) - (MYTILIDAE)
- lavalleanus, Tomelasmus lavalleanus (A.V.M.D. D'Orbigny, 1842) - (UROCOPTIDAE)
- lavalleeana, Gibberula lavalleeana (A.V.M.D. D'Orbigny, 1842) - (CYSTISCIDAE)
- lavalleei, Ampullina lavalleei Briart & Cornet, 1887 † - (AMPULLINIDAE) (FOSSIL)
- lavallei, Pusillina lavallei Seguenza, 1903 † - (RISSOIDAE) (FOSSIL)
- Lavaloceras, Genus Lavaloceras Flower, 1952 † (WESTONOCERATIDAE) (FOSSIL)
- lavanonoensis, Horologica lavanonoensis A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- lavanonoensis, Stenoplax lavanonoensis Dell'Angelo, B.I. Sirenko & G. Prelle, 2015 - (ISCHNOCHITONIDAE)
- lavanonoensis, Nassarius lavanonoensis L. Bozzetti, 2006 - (NASSARIIDAE)
- lavanonoensis, Crassispira lavanonoensis L. Bozzetti, 2008 - (PSEUDOMELATOMIDAE)
- lavaratum, Opaliopsis lavaratum W.H. Dall, 1927 - syn of: Opaliopsis opalina (W.H. Dall, 1927) - (NYSTIELLIDAE)
- Lavarotoma, Subgenus Apiotoma (Lavarotoma) Garvier, 2013 † (COCHLESPIRIDAE) (FOSSIL)
- lavata, Mactra lavata F.W. Hutton, 1885 - syn of: Cyclomactra ovata (J.E. Gray, 1843) - (MACTRIDAE)
- lavatus, Eocantharus lavatus (J. de C. Sowerby, 1823 †) - (BUCCINIDAE) (FOSSIL)
- lavatus, Fusinus lavatus R.A. Philippi, 1836 - syn of: Ocinebrina aciculata (J.B.P.A. Lamarck, 1822) - (FASCIOLARIIDAE)
- lavdaris, Adaptyxis lavdaris H.A. Kollmann & Peza, 1997 † - (ARCHAEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- lavelana, Persicula lavelana F. Hodson, 1927 † - (CYSTISCIDAE) (FOSSIL)
- lavelana, Polinices lavelana F. Hodson, 1927 † - (NATICIDAE) (FOSSIL)
- lavelana, Conomitra lavelana F. Hodson, 1931 † - (VOLUTOMITRIDAE) (FOSSIL)
- lavelana falconensis, Conomitra lavelana falconensis F. Hodson, 1931 † - syn of: Conomitra falconensis (F. Hodson, 1931 †) - (VOLUTOMITRIDAE) (FOSSIL)
- lavelensis, Glycymeris tumefactus lavelensis F. Hodson, 1927 - (GLYCYMERIDIDAE)
- lavellana, Cancellaria lavellana F. Hodson, 1931 † - (CANCELLARIIDAE) (FOSSIL)
- lavelleana, Gibberula lavelleana D'Orbigny, 1842 - syn of: Gibberula lavalleeana (A.V.M.D. D'Orbigny, 1842) - (CYSTISCIDAE)
- Lavenachiton, Genus Lavenachiton † (NEOLORICATA (UNASSIGNED)) (FOSSIL)
- lavendula, Naticarius lavendula L.H. Woolacott, 1956 - syn of: Natica buriasiensis C.A. Récluz, 1844 - (NATICIDAE)
- lavendula, Natica lavendula L.H. Woolacott, 1956 - syn of: Natica buriasiensis C.A. Récluz, 1844 - (NATICIDAE)
- lavendulus, Conus lavendulus P. Bartsch, 1915 - syn of: Ketyconus tinianus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- lavendulus approximata, Conus lavendulus approximata W.H. Turton, 1932 - syn of: Ketyconus tinianus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- laverdei, Eutrephoceras laverdei J.W. Durham, 1946 † - (NAUTILIDAE) (FOSSIL)
- laversinensis, Eosolen laversinensis (Lefévre & A. Watelet, 1877 †) - (SOLENIDAE) (FOSSIL)
- laversinensis, Solen laversinensis Lefevre & A. Watelet, 1924 † - (SOLENIDAE) (FOSSIL)
- lavertinae, Odostomia lavertinae E.A. Smith, 1901 - (PYRAMIDELLIDAE)
- Lavesopus, Subgenus Aesopus (Lavesopus) T. Iredale, 1929 (COLUMBELLIDAE)
- lavezzarii, Camaena lavezzarii A.R.J.B. Bavay & P. Dautzenberg, 1900 - (CAMAENIDAE)
- lavezzarii, Camaena lavezzarii P. Dautzenberg & H. Fischer, 1905 - syn of: Camaena choboensis (J.F. Mabille, 1889) - (CAMAENIDAE)
- lavezzarii, Helix lavezzarii P. Dautzenberg & H. Fischer, 1905 - syn of: Camaena choboensis (J.F. Mabille, 1889) - (HELICIDAE)
- lavezzarii, Atrina lavezzarii E. Fischer-Piette, 1974 - syn of: Cyrtopinna seminuda (J.B.P.A. Lamarck, 1819) - (PINNIDAE)
- lavezzarii, Venus lavezzarii E. Fischer-Piette, 1975 - syn of: Venus declivis G.B. II Sowerby, 1853 - (VENERIDAE)
- laviae, Fusus laviae P. Calcara, 1845 - syn of: Teretia teres (L.A. Reeve, 1844) - (FASCIOLARIIDAE)
- laviae, Raphitoma laviae (R.A. Philippi, 1844) - (RAPHITOMIDAE)
- laviae, Pleurotoma laviae R.A. Philippi, 1844 - syn of: Raphitoma laviae (R.A. Philippi, 1844) - (TURRIDAE)
- lavigata, Protoginella lavigata (J.W. Brazier, 1877) - (MARGINELLIDAE)
- lavigata, Marginella lavigata J.W. Brazier, 1877 - syn of: Protoginella lavigata (J.W. Brazier, 1877) - (MARGINELLIDAE)
- Lavigeria, Genus Lavigeria J.R. Bourguignat, 1888 (PALUDOMIDAE)
- lavigeriana, Burtoa lavigeriana J.R. Bourguignat, 1889 - (ACHATINIDAE)
- lavigeriana, Corbicula lavigeriana Germain, 1906 - syn of: Corbicula fluminalis (O.F. Müller, 1774) - (CYRENIDAE)
- lavigeriana, Moncetia lavigeriana J.R. Bourguignat, 1886 - syn of: Moncetia anceyi J.R. Bourguignat, 1885 - (IRIDINIDAE)
- lavigeriana, Mutela lavigeriana J.R. Bourguignat, 1886 - syn of: Mutela soleniformis J.R. Bourguignat, 1885 - (IRIDINIDAE)
- lavigeriana, Burtonia lavigeriana J.R. Bourguignat, 1886 - syn of: Pseudospatha tanganyicensis (E.A. Smith, 1880) - (UNIONIDAE)
- lavigeriana, Coelatura horei lavigeriana J.R. Bourguignat, 1886 - (UNIONIDAE)
- lavigerianus, Unio lavigerianus J.R. Bourguignat, 1886 - syn of: Coelatura horei lavigeriana J.R. Bourguignat, 1886 - (UNIONIDAE)
- lavigerina, Moncetia lavigerina C.T. Simpson, 1900 - syn of: Moncetia anceyi J.R. Bourguignat, 1885 - (IRIDINIDAE)
- Lavigno, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- Lavignon, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- Lavignona, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- Lavignonus, syn of: Genus Scrobicularia H.C.F. Schumacher, 1815 (SCROBICULARIIDAE)
- lavillei, Clausilia lavillei P. Dautzenberg & H. Fischer, 1905 - (CLAUSILIIDAE)
- lavillei, Conolithes lavillei Cossmann, 1913 † - (CONIDAE) (FOSSIL)
- lavillei, Crassispira lavillei M.E.A. de Boury, 1899 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- lavillei, Prosopeas lavillei P. Dautzenberg & H. Fischer, 1908 - (SUBULINIDAE)
- lavinia, Holopea lavinia Billings, 1865 † - (HOLOPEIDAE) (FOSSIL)
- lavinia, Ptychobela lavinia (W.H. Dall, 1919) - (PSEUDOMELATOMIDAE)
- lavinia conica, Holopea lavinia conica Billings, 1865 † - (HOLOPEIDAE) (FOSSIL)
- laviniae, Fusinus laviniae M.A. Snyder & R. Hadorn, 2006 - (FASCIOLARIIDAE)
- lavinianum, Fuciniceras lavinianum (Fucini, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- lavinianum inclytum, Fuciniceras lavinianum inclytum (Fucini, 1900 †) - (HILDOCERATIDAE) (FOSSIL)
- lavinioides, Cruziturricula lavinioides (A.A. Olsson, 1922) - (DRILLIIDAE)
- lavinoides, Turricula lavinoides A.A. Olsson, 1922 - syn of: Fusiturricula lavinoides (A.A. Olsson, 1922) - (CLAVATULIDAE)
- lavinoides, Fusiturricula lavinoides (A.A. Olsson, 1922) - (DRILLIIDAE)
- lavinoides, Knefastia lavinoides A.A. Olsson, 1922 † - syn of: Knefastia limonensis A.A. Olsson, 1922 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- lavinoides limonensis, Fusiturricula lavinoides limonensis (A.A. Olsson, 1922) - (DRILLIIDAE)
- lavizzarii, Zetoceras lavizzarii (J. Von Hauer, 1854 †) - (PHYLLOCERATIDAE) (FOSSIL)
- lavoisieri, Scabricola lavoisieri E.G. Guillot de Suduiraut, 2002 - (MITRIDAE)
- lavrani, Cardium lavrani E. Fischer-Piette, 1977 - syn of: Papillicardium turtoni (G.B. III Sowerby, 1894) - (CARDIIDAE)
- lavrani, Timoclea lavrani E. Fischer-Piette, 1974 - syn of: Timoclea arakana lavrani E. Fischer-Piette, 1974 - (VENERIDAE)
- lavrani, Timoclea arakana lavrani E. Fischer-Piette, 1974 - (VENERIDAE)
- lavranosi, Riebeckia lavranosi B. Salvat, 1969 - (SUBULINIDAE)
- lavrskyi, Bulimorpha lavrskyi Mazaev, 2015 † - (SOLENISCIDAE) (FOSSIL)
- lavrushini, Bradybaena lavrushini T.D.A. Cockerell, 1896 - (BRADYBAENIDAE)
- lawae, Ventridens lawae W.G. Binney, 1892 - (GASTRODONTIDAE)
- lawae, Praticolella lawae (J. Lewis, 1874) - (POLYGYRIDAE)
- lawlessi, Murchisonia lawlessi Cook & Camilleri, 1997 † - (MURCHISONIIDAE) (FOSSIL)
- lawleyanum, Batillaria lawleyanum J.C.H. Crosse, 1863 - syn of: Bittium lawleyanum (J.C.H. Crosse, 1863) - (BATILLARIIDAE)
- lawleyanum, Bittium lawleyanum (J.C.H. Crosse, 1863) - (CERITHIIDAE)
- lawleyianus, Unio lawleyianus C. Gentiluomo, 1868 - syn of: Unio mancus J.B.P.A. Lamarck, 1819 - (UNIONIDAE)
- lawrencei, Crucibulum lawrencei Ward & B.W. Blackwelder, 1987 † - (CALYPTRAEIDAE) (FOSSIL)
- lawrencei, Chlamydephorus lawrencei (L. Forcart, 1963) - (CHLAMYDEPHORIDAE)
- lawrencei, Conradostrea lawrencei Ward & B.W. Blackwelder, 1987 † - (OSTREIDAE) (FOSSIL)
- lawrencei, Gulella lawrencei A.C. van Bruggen, 1964 - (STREPTAXIDAE)
- lawrencense, Endoceras lawrencense Ulrich & al., 1944 † - (ENDOCERATIDAE) (FOSSIL)
- Lawrenceoceras, Genus Lawrenceoceras Ulrich & al., 1944 † (BASSLEROCERATIDAE) (FOSSIL)
- lawrenciana, Curtitoma lawrenciana (W.H. Dall, 1919) - (MANGELIIDAE)
- lawrenciana, Lora lawrenciana W.H. Dall, 1919 - syn of: Curtitoma lawrenciana (W.H. Dall, 1919) - (TURRIDAE)
- lawrencianus, Ceratites lawrencianus de Koninck, 1863 † - syn of: Proptychites lawrencianus (de Koninck, 1863 †) - (CERATITIDAE) (FOSSIL)
- lawrencianus, Proptychites lawrencianus (de Koninck, 1863 †) - (PROPTYCHITIDAE) (FOSSIL)
- lawrencianus, Ptychites lawrencianus de Koninck, 1863 † - syn of: Proptychites lawrencianus (de Koninck, 1863 †) - (PTYCHITIDAE) (FOSSIL)
- lawsae, Salinator lawsae N.H. Ludbrook, 1978 † - (AMPHIBOLIDAE) (FOSSIL)
- lawsae, Aphelodoris lawsae R.F. Burn, 1966 - (DORIDIDAE)
- lawsei, Struthiolaria lawsei Powell & J.A. Bartrum, 1929 - (STRUTHIOLARIIDAE)
- lawsi, Granosolarium lawsi P.A. Maxwell, 1969 † - (ARCHITECTONICIDAE) (FOSSIL)
- lawsi, Phenatoma lawsi A.W.B. Powell, 1942 † - (BORSONIIDAE) (FOSSIL)
- lawsi, Zefallacia lawsi J. Marwick, 1948 † - (CERITHIIDAE) (FOSSIL)
- lawsi, Austrotoma lawsi A.W.B. Powell, 1942 † - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- lawsi, Austromitra lawsi H.J. Finlay, 1930 - (COSTELLARIIDAE)
- lawsi, Cylindriscala lawsi P.A. Maxwell, 1992 † - (EPITONIIDAE) (FOSSIL)
- lawsi, Kalentera lawsi Taylor & Guex, 2002 † - (KALENTERIDAE) (FOSSIL)
- lawsi, Limopsis lawsi King, 1933 † - (LIMOPSIDAE) (FOSSIL)
- lawsi, Fusiguraleus lawsi (A.W.B. Powell, 1942 †) - (MANGELIIDAE) (FOSSIL)
- lawsi, Chicoreus lawsi (P.A. Maxwell, 1971 †) - (MURICIDAE) (FOSSIL)
- lawsi, Eulimella lawsi E. Robba, 2013 † - (PYRAMIDELLIDAE) (FOSSIL)
- lawsi, Waikura lawsi E. Robba, 2013 † - (PYRAMIDELLIDAE) (FOSSIL)
- lawsi, Tibersyrnola lawsi (A.W.B. Powell, 1934 †) - (PYRAMIDELLIDAE) (FOSSIL)
- lawsi, Besla lawsi J. Grant-Mackie & M. Chapman-Smith, 1971 † - (PYRAMIDELLIDAE) (FOSSIL)
- lawsi, Turbonilla lawsi (A.W.B. Powell, 1937) - (PYRAMIDELLIDAE)
- lawsi, Planpyrgiscus lawsi R.K. Dell, 1956 - (PYRAMIDELLIDAE)
- lawsi, Taita lawsi P.A. Maxwell, 1988 † - (SCAPHANDRIDAE) (FOSSIL)
- lawsi, Struthiolaria lawsi Powell & J.A. Bartrum, 1929 † - (STRUTHIOLARIIDAE) (FOSSIL)
- lawsi, Gemmula lawsi A.W.B. Powell, 1942 † - (TURRIDAE) (FOSSIL)
- lawsi, Zeacolpus lawsi J. Marwick, 1971 † - (TURRITELLIDAE) (FOSSIL)
- lawsi, Bassina lawsi C.A. Fleming, 1971 - (VENERIDAE)
- lawsonae, Granulina lawsonae M. Lussi & G. Smith, 1998 - (MARGINELLIDAE)
- lawsoni, Phillipites lawsoni Diener, 1905 † - (BEYRICHITIDAE) (FOSSIL)
- lawsoni, Dixieceras lawsoni (Smith, 1914 †) - (BEYRICHITIDAE) (FOSSIL)
- lawsoni, Neritilia lawsoni Symonds & Tracey, 2014 † - (NERITILIIDAE) (FOSSIL)
- lawsoni, Hauerites lawsoni Smith, 1927 † - (TIBETITIDAE) (FOSSIL)
- lawsoni, Sirenites lawsoni (A. Hyatt & Smith, 1905 †) - (TRACHYCERATIDAE) (FOSSIL)
- lawsonorum, Nassarius lawsonorum R.N. Kilburn, 2000 - (NASSARIIDAE)
- laxa, Iselica laxa W.H. Dall, 1919 - syn of: Iselica obtusa (P.P. Carpenter, 1864) - (AMATHINIDAE)
- laxa, Cardites laxa É.A.A. Locard, 1886 - syn of: Cardites antiquatus (C. Linnaeus, 1758) - (CARDITIDAE)
- laxa, Cardita laxa É.A.A. Locard, 1886 - syn of: Cardites antiquatus (C. Linnaeus, 1758) - (CARDITIDAE)
- laxa, Montenegrina laxa H.C. Küster - (CLAUSILIIDAE)
- laxa, Antimitrella laxa A.W.B. Powell, 1937 - (COLUMBELLIDAE)
- laxa, Acanthonema laxa Sherzer & A.W. Grabau, 1910 † - (EUOMPHALIDAE) (FOSSIL)
- laxa, Reynesia laxa Buckman † - (GRAPHOCERATIDAE) (FOSSIL)
- laxa, Haloceras laxa (J.G. Jeffreys, 1885) - (HALOCERATIDAE)
- laxa, Monacha laxa B. Hausdorf, 2000 - (HYGROMIIDAE)
- laxa, Loxonema laxa J.W. Hall, 1879 † - syn of: Palaeozygopleura laxa (J.W. Hall, 1879 †) - (LOXONEMATIDAE) (FOSSIL)
- laxa, Domiporta laxa Mawson & al., 2002 † - (MITRIDAE) (FOSSIL)
- laxa, Koloonella laxa (R.B. Watson, 1886) - (MURCHISONELLIDAE)
- laxa, Palaeozygopleura laxa (J.W. Hall, 1879 †) - (PALAEOZYGOPLEURIDAE) (FOSSIL)
- laxa, Trabecula laxa (W.H. Dall & P. Bartsch, 1909) - (PYRAMIDELLIDAE)
- laxa, Alvania cancellata laxa P. Dautzenberg & H. Fischer, 1896 - (RISSOIDAE)
- laxa, Seguenzia laxa J.G. Jeffreys, 1885 - syn of: Haloceras laxa (J.G. Jeffreys, 1885) - (SEGUENZIIDAE)
- laxa, Cirsonella laxa A.W.B. Powell, 1937 - (SKENEIDAE)
- laxa, Vallonia laxa J. Gerber, 1996 - (VALLONIIDAE)
- laxa chiasma, Montenegrina laxa chiasma H. Nordsieck, 1972 - (CLAUSILIIDAE)
- laxa dedovi, Montenegrina laxa dedovi H. Nordsieck, 2009 - (CLAUSILIIDAE)
- laxa delii, Montenegrina laxa delii Z. Fehér & M. Szekeres, 2006 - (CLAUSILIIDAE)
- laxa disjuncta, Montenegrina laxa disjuncta Z. Fehér & M. Szekeres, 2006 - (CLAUSILIIDAE)
- laxa errans, Montenegrina laxa errans Z. Eröss & M. Szekeres, 2006 - (CLAUSILIIDAE)
- laxa iba, Montenegrina laxa iba H. Nordsieck - (CLAUSILIIDAE)
- laxa kontschani, Montenegrina laxa kontschani Z. Eröss & M. Szekeres, 2006 - (CLAUSILIIDAE)
- laxa lakmosensis, Montenegrina laxa lakmosensis H. Nordsieck, 2009 - (CLAUSILIIDAE)
- laxa miraka, Montenegrina laxa miraka H. Nordsieck - (CLAUSILIIDAE)
- laxaris, Helicocyclus laxaris D. Korn & al., 2010 † - (PERICYCLIDAE) (FOSSIL)
- laxata, Ainicardita laxata (M. Yokoyama, 1924) - (CARDITIDAE)
- laxata, Cycloscala laxata (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- laxata, Epitonium laxata G.B. II Sowerby, 1844 - syn of: Cycloscala laxata (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- laxata, Macrocyclis laxata (A.E.J. Férussac, 1820) - (MACROCYCLIDAE)
- laxata, Platyclymenia laxata Czarnocki, 1989 † - (PLATYCLYMENIIDAE) (FOSSIL)
- laxata, Stenotis laxata A. Adams, 1863 - (VANIKORIDAE)
- laxata, Azorivitrina laxata (P.M.A. Morelet, 1860) - (VITRINIDAE)
- laxatoides, Cycloscala laxatoides (T. Nakayama, 1995) - (EPITONIIDAE)
- laxatoides, Epitonium laxatoides T. Nakayama, 1995 - syn of: Cycloscala laxatoides (T. Nakayama, 1995) - (EPITONIIDAE)
- laxatoides, Eccliseogyra laxatoides J.T. Kuroda in T. Nakayama, 1995 - syn of: Cycloscala laxatoides (T. Nakayama, 1995) - (NYSTIELLIDAE)
- laxatus, Serpulorbis laxatus G.P. Deshayes, 1861 † - (VERMETIDAE) (FOSSIL)
- laxecarinatus, Melongena laxecarinatus O.G. Michelotti, 1861 † - (MELONGENIDAE) (FOSSIL)
- laxefuniculata, Hinemoa laxefuniculata E. Robba, S.I. Di Geronimo, N. Chaimanee & al., 2004 - (PYRAMIDELLIDAE)
- Laxella, Genus Laxella Pan & Erwin, 2002 † (STREPTACIDIDAE) (FOSSIL)
- Laxicava, syn of: Genus Hiatella L.A.G. d'A. Bosc, 1801 (HIATELLIDAE)
- laxilectus, Prosicanites laxilectus Leonova, 1992 † - (MEDLICOTTIIDAE) (FOSSIL)
- laxilectus, Surenites laxilectus Ruzhencev & Bogoslovskaya, 1978 † - (RETICULOCERATIDAE) (FOSSIL)
- Laxispira, Genus Laxispira Gabb , 1877 † (TURRITELLIDAE) (FOSSIL)
- laxispirum, Prosopeas laxispirum (E.C. Von Martens, 1867) - (SUBULINIDAE)
- Laxisuccinea, Genus Laxisuccinea C.M. Cooke, 1921 (SUCCINEIDAE)
- laxopharyngeata, Sputoherpia laxopharyngeata L. Salvini-Plawén, 1978 - (AMPHIMENIIDAE)
- laxostylus, Drymaeus laxostylus H. Rolle, 1905 - (BULIMULIDAE)
- laxum, Trachycardium laxum W.H. Dall, 1901 - syn of: Trachycardium consors (I, 1833) - (CARDIIDAE)
- laxumbilicale, Syngastrioceras laxumbilicale Ruzhentsev & Bogoslovskaya, 1971 † - (GLAPHYRITIDAE) (FOSSIL)
- laxus, Serpulospira laxus J.W. Hall, 1859 † - (EUOMPHALOIDEA (UNASSIGNED)) (FOSSIL)
- laxus, Polinices laxus (Finlay, 1926 †) - (NATICIDAE) (FOSSIL)
- laxus, Tectiretites laxus Ruzhencev & Bogoslovskaya, 1978 † - (RETICULOCERATIDAE) (FOSSIL)
- layanglayang, Everettia layanglayang T.S. Liew, M. Schilthuizen & J.J. Vermeulen, 2009 - (DYAKIIDAE)
- layardi, Achatina layardi L. Pfeiffer, 1858 - (ACHATINIDAE)
- layardi, Pila globosa layardi (L.A. Reeve, 1849) - (AMPULLARIIDAE)
- layardi, Philippia layardi A. Adams, 1854 - syn of: Psilaxis radiatus (P.F. Röding, 1798) - (ARCHITECTONICIDAE)
- layardi, Psilaxis layardi S.C.T. Hanley, 1863 - syn of: Psilaxis radiatus (P.F. Röding, 1798) - (ARCHITECTONICIDAE)
- layardi, Psilaxis layardi W.H. Turton, 1932 - syn of: Psilaxis radiatus (P.F. Röding, 1798) - (ARCHITECTONICIDAE)
- layardi, Euplecta layardi (L. Pfeiffer, 1851) - (ARIOPHANTIDAE)
- layardi, Placostylus layardi W. Kobelt, 1891 - syn of: Placostylus bondeensis rossiteri (J.W. Brazier, 1881) - (BOTHRIEMBRYONTIDAE)
- layardi, Engina layardi J.C. Melvill, 1895 - (BUCCINIDAE)
- layardi, Calliostoma layardi G.B. III Sowerby, 1897 - (CALLIOSTOMATIDAE)
- layardi, Austrochloritis layardi G.P.L.K. Gude, 1906 - (CAMAENIDAE)
- layardi, Costellaria layardi A. Adams, 1855 - syn of: Vexillum acuminatum (J.F. Gmelin, 1791) - (COSTELLARIIDAE)
- layardi, Theobaldius layardi (C.B. Adams, 1868) - (CYCLOPHORIDAE)
- layardi, Drillia layardi G.B. III Sowerby, 1897 - syn of: Crassiclava layardi (G.B. III Sowerby, 1897) - (DRILLIIDAE)
- layardi, Allochroa layardi (H. Adams & A. Adams, 1855) - (ELLOBIIDAE)
- layardi, Ophicardelus layardi H. Adams & A. Adams, 1855 - syn of: Allochroa layardi (H. Adams & A. Adams, 1855) - (ELLOBIIDAE)
- layardi, Fauxulus layardi (W.H. Benson, 1856) - (FAUXULIDAE)
- layardi, Galeomma layardi G.P. Deshayes, 1856 - (GALEOMMATIDAE)
- layardi, Dendrotrochus layardi (W.D. Hartman, 1889) - (HELICARIONIDAE)
- layardi, Cheilea layardi (L.A. Reeve, 1859) - (HIPPONICIDAE)
- layardi, Atactodea layardi (L.A. Reeve, 1854) - (MESODESMATIDAE)
- layardi, Diplomorpha layardi C.M.F. Ancey, 1884 - (ORTHALICIDAE)
- layardi, Chlamys layardi L.A. Reeve, 1853 - syn of: Mimachlamys sanguinea (C. Linnaeus, 1758) - (PECTINIDAE)
- layardi, Physastra layardi (C.M.F. Ancey) - (PLANORBIDAE)
- layardi, Psammobia layardi G.P. Deshayes, 1855 - syn of: Gari maculosa J.B.P.A. Lamarck, 1818 - (PSAMMOBIIDAE)
- layardi, Crassiclava layardi (G.B. III Sowerby, 1897) - (PSEUDOMELATOMIDAE)
- layardi, Tortulosa layardi L. Pfeiffer, 1852 - (PUPINIDAE)
- layardi, Lironoba layardi (W.F. Petterd, 1884) - (RISSOIDAE)
- layardi, Spondylus layardi L.A. Reeve, 1856 - (SPONDYLIDAE)
- layardi, Glessula layardi H.A. Pilsbry, 1908 - (SUBULINIDAE)
- layardi, Pleurotoma layardi G.B. III Sowerby, 1897 - syn of: Crassiclava layardi (G.B. III Sowerby, 1897) - (TURRIDAE)
- layardi, Timoclea layardi (L.A. Reeve, 1864) - (VENERIDAE)
- layardi bombayanus, Pirenella layardi bombayanus G.B. II Sowerby - syn of: Potamides conicus (H.M.D. de Blainville, 1829) - (POTAMIDIDAE)
- layardi curta, Placostylus layardi curta W. Kobelt, 1891 - syn of: Placostylus bondeensis rossiteri (J.W. Brazier, 1881) - (BOTHRIEMBRYONTIDAE)
- layardiana, Omphalotropis layardiana A. Garrett, 1887 - (ASSIMINEIDAE)
- layardiana, Fadyenia layardiana E. Chitty, 1857 - (HELICINIDAE)
- layardianus, Indoartemon layardianus (W.H. Benson, 1853) - (STREPTAXIDAE)
- layardii, Lucina layardii A. Adams, 1855 - syn of: Lepidolucina venusta (R.A. Philippi, 1847) - (LUCINIDAE)
- layardii, Ennucula layardii (C.B. Adams, 1856) - (NUCULIDAE)
- layardii, Pirenella layardii A. Adams, 1854 - syn of: Potamides conicus (H.M.D. de Blainville, 1829) - (POTAMIDIDAE)
- layardii, Unio layardii I. Lea, 1859 - syn of: Lamellidens lamellatus (I. Lea, 1838) - (UNIONIDAE)
- layensis, Scoliostomina layensis Heidelberger, 2001 † - (SCOLIOSTOMATIDAE) (FOSSIL)
- layeri, Pompeckjites layeri J. Von Hauer, 1847 † - (PINACOCERATIDAE) (FOSSIL)
- layeriformis, Pseudaspenites layeriformis (Welter, 1922 †) - (ASPENITIDAE) (FOSSIL)
- laymansa, Calocochlia roissyana laymansa P. Bartsch - (BRADYBAENIDAE)
- layracensis, Maikhanella layracensis Kerber, 1988 † - (MAIKHANELLIDAE) (FOSSIL)
- laysana, Barbatia laysana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Acar plicata (L.W. Dillwyn, 1817) - (ARCIDAE)
- laysana, Cardita laysana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Cardita hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (CARDITIDAE)
- laysana, Arcinella laysana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Cardita hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (CHAMIDAE)
- laysana, Botula laysana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Botula hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (MYTILIDAE)
- laysana, Ostrea laysana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Neopycnodonte cochlear (G.S. Poli, 1795) - (OSTREIDAE)
- laysanensis, Turbonilla laysanensis H.A. Pilsbry, 1918 - syn of: Styloptygma lacteolum H.B. Preston, 1903 - (PYRAMIDELLIDAE)
- laysanus, Musculus laysanus W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Musculus aviarius W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (MYTILIDAE)
- lazarevi, Kolymoglaphyrites lazarevi Kutygin & Ganelin, 2011 † - (GLAPHYRITIDAE) (FOSSIL)
- lazarevici, Radix lazarevici (Š. Brusina, 1902 †) - (LYMNAEIDAE) (FOSSIL)
- Lazaria, syn of: Genus Carditamera T.A. Conrad, 1838 (CARDITIDAE)
- Lazariella, Genus Lazariella F. Sacco, 1899 (CARDITIDAE)
- Lazarina, Genus Lazarina Vermeulen, 2009 † (ANAHAMULINIDAE) (FOSSIL)
- lazarini, Rouchadzeites lazarini Delanoy & J.J. Bert, 2006 † - (HETEROCERATIDAE) (FOSSIL)
- lazaroensis, Turbonilla lazaroensis P. Bartsch, 1917 - (PYRAMIDELLIDAE)
- lazaroi, Gibberula lazaroi J.A. Contreras, 1992 - (CYSTISCIDAE)
- lazaroi, Granulina lazaroi J. Espinosa & J.A. Ortea, 2006 - (MARGINELLIDAE)
- lazaroi, Edmundsina lazaroi L. Moro, J.A. Ortea & J.J. Bacallado, 2015 - (RUNCINIDAE)
- lazarovii, Vestiella lazarovii I. Dedov, 2011 - (CLAUSILIIDAE)
- lazarus, Chama lazarus C. Linnaeus, 1758 - (CHAMIDAE)
- Lazarus, syn of: Genus Chama C. Linnaeus, 1758 (CHAMIDAE)
- lazarus, Goniatites lazarus W. Korn & al., 2005 † - (GONIATITIDAE) (FOSSIL)
- lazarus, Unio lazarus I. Lea, 1852 - syn of: Elliptio arctata T.A. Conrad, 1834 - (UNIONIDAE)
- lazarus pannosus, Chama lazarus pannosus J. Lightfoot, 1786 - syn of: Chama lazarus C. Linnaeus, 1758 - (CHAMIDAE)
- lazici, Gyraulus lazici (Š. Brusina, 1892) - (PLANORBIDAE)
- lazzarii, Joculator lazzarii A. Cecalupo & I. Perugia, 2013 - (CERITHIOPSIDAE)
- lea, Telophaedusa lea (P.V. Gredler, 1892) - (CLAUSILIIDAE)
- lea, Drillia lea K.H.J. Thiele, 1925 - (DRILLIIDAE)
- leachi, Quenstedtoceras leachi (J. de C. Sowerby, 1819 †) - (CARDIOCERATIDAE) (FOSSIL)
- leachi, Chiton leachi H.M.D. de Blainville, 1825 - syn of: Cryptoconchus porosus (E.J. Burrow, 1815 ex Blainville MS) - (CHITONIDAE)
- leachi, Eulima leachi A. Adams, 1861 - (EULIMIDAE)
- leachi, Jupiteria leachi J. Marwick, 1931 † - (NUCULANIDAE) (FOSSIL)
- leachi, Exilia leachi (J. Marwick, 1931 †) - (PTYCHATRACTIDAE) (FOSSIL)
- leachi prespensis, Bithynia leachi prespensis S. Hadžišce, 1963 - syn of: Bithynia prespensis S. Hadžišce, 1963 - (BITHYNIIDAE)
- leachi troschelii, Bithynia leachi troschelii F. Starmühlner & A. Edlauer, 1957 - syn of: Bithynia starmuehlneri P. Glöer & V.M. Pešic, 2012 - (BITHYNIIDAE)
- Leachia, Genus Leachia C.A. Lesueur, 1821 (CRANCHIIDAE)
- leachii, Bursatella leachii H.M.D. de Blainville, 1817 - (APLYSIIDAE)
- leachii, Bithynia leachii (R. Sheppard, 1823) - (BITHYNIIDAE)
- leachii, Okenia leachii (J. Alder & A. Hancock, 1854) - (GONIODORIDIDAE)
- leachii, Clithon leachii (C.A. Récluz, 1841) - (NERITIDAE)
- leachii, Onchidoris leachii H.M.D. de Blainville, 1816 - syn of: Onchidoris bilamellata (C. Linnaeus, 1767) - (ONCHIDORIDIDAE)
- leachii, Onychoteuthis leachii A.E.J. Férussac in A.E.J. Férussac & D'Orbigny, 1834 - (ONYCHOTEUTHIDAE)
- leachii, Cyclas leachii A. Villa, 1841 - syn of: Sphaerium cornea (C. Linnaeus, 1767) - (SPHAERIIDAE)
- leachii, Trochus leachii R.A. Philippi, 1846 - syn of: Margarites costalis (A.A. Gould, 1841) - (TROCHIDAE)
- leachii africana, Bursatella leachii africana (H. Engel, 1927) - (APLYSIIDAE)
- leachii guineensis, Bursatella leachii guineensis A. Bebbington, 1969 - (APLYSIIDAE)
- leachii lacinulata, Bursatella leachii lacinulata A.A. Gould, 1852 - syn of: Bursatella leachii H.M.D. de Blainville, 1817 - (APLYSIIDAE)
- leachii pleii, Bursatella leachii pleii (P.C.A.S.L. Rang, 1828) - (APLYSIIDAE)
- leachii quadricornis, Okenia leachii quadricornis G. Montagu, 1815 - syn of: Okenia aspersa (J. Alder & A. Hancock, 1845) - (GONIODORIDIDAE)
- leachii rosea, Bursatella leachii rosea H. Engel, 1926 - syn of: Bursatella leachii H.M.D. de Blainville, 1817 - (APLYSIIDAE)
- leachii savigniana, Bursatella leachii savigniana J.V. Audouin, 1826 - (APLYSIIDAE)
- leacociana, Pyrgella leacociana (R.T. Lowe, 1852) - (FERUSSACIIDAE)
- leacocki, Alvania leacocki (R.B. Watson, 1873) - (RISSOIDAE)
- leacockiana, Amphorella leacockiana R.T. Lowe, 1852 - (FERUSSACIIDAE)
- leacockiana, Hystricella leacockiana (T.V. Wollaston, 1878) - (HYGROMIIDAE)
- leacockiana, Discula leacockiana Wallaskov, 1878 - (HYGROMIIDAE)
- leae, Vietricula leae (N.T. Dang & T.H. Ho, 2006) - (POMATIOPSIDAE)
- leae, Pseudotricula leae N.T. Dang & T.H. Ho, 2006 - syn of: Vietricula leae (N.T. Dang & T.H. Ho, 2006) - (POMATIOPSIDAE)
- Leaella, Subgenus Rissoina (Leaella) A.E.M. Cossmann, 1921 (RISSOINIDAE)
- leaeneus, Conus leaeneus J.H.F. Link, 1807 - syn of: Chelyconus ermineus (I. von Born, 1778) - (CONIDAE)
- leaensis, Dolicholatirus leaensis G.F. Harris, 1897 † - (FASCIOLARIIDAE) (FOSSIL)
- leafensis, Pyramidella leafensis McNeil, 1984 † - (PYRAMIDELLIDAE) (FOSSIL)
- leah, Siphopteron leah A. Klussmann-Kolb & Klussmann, 2003 - (GASTROPTERIDAE)
- leai, Lignus leai H.A. Pilsbry, 1933 - (ACHATINIDAE)
- leai, Columna leai G.W. Tryon, 1866 - (ACHATINIDAE)
- leai, Helicostyla effusa leai L. Pfeiffer, 1892 - (BRADYBAENIDAE)
- leai, Penion bellus leai K.V.W. Palmer, 1937 - (BUCCINIDAE)
- leai, Drymaeus leai H.A. Pilsbry, 1898 - (BULIMULIDAE)
- leai, Cyclophorus leai (G.W. Tryon, 1869) - (CYCLOPHORIDAE)
- leai, Epitonium leai Ward & B.W. Blackwelder, 1987 † - (EPITONIIDAE) (FOSSIL)
- leai, Diplodon leai C.T. Simpson, 1900 - syn of: Diplodon expansus (H.C. Küster, 1853) - (HYRIIDAE)
- leai, Prunum leai F.P. Jousseaume, 1875 - syn of: Prunum labrosum (J.H. Redfield, 1870) - (MARGINELLIDAE)
- leai, Aperostoma leai P. Bartsch & J.P.E. Morrison, 1942 - (NEOCYCLOTIDAE)
- leai, Stenotrema leai A. Binney, 1841 - syn of: Stenotrema monodon T. Rackett, 1821 - (POLYGYRIDAE)
- leai, Juga plicifera leai H. Hemphill - (SEMISULCOSPIRIDAE)
- leai, Lamprotula leai (E. Griffith & E. Pidgeon, 1834) - (UNIONIDAE)
- leai, Lysinoe leai F.G. Thompson, 1996 - (XANTHONYCHIDAE)
- leai aliciae, Stenotrema leai aliciae H.A. Pilsbry, 1893 - syn of: Stenotrema monodon aliciae (H.A. Pilsbry, 1893) - (POLYGYRIDAE)
- leai cheatumi, Stenotrema leai cheatumi W. Fullington, 1974 - syn of: Stenotrema cheatumi (W. Fullington, 1974) - (POLYGYRIDAE)
- leai gottschei, Lamprotula leai gottschei E.C. Von Martens, 1894 - syn of: Lamprotula gottschei (E.C. Von Martens, 1894) - (UNIONIDAE)
- leaiana, Pseudachatina leaiana (J.P.S. Grateloup, 1839) - (ACHATINIDAE)
- leali, Tritonoharpa leali M.G. Harasewych, R.E. Petit & A. Verhecken, 1992 - (CANCELLARIIDAE)
- leali, Epitonium leali E.F. Garcia, 2011 - (EPITONIIDAE)
- leali, Chicoreus leali Thach, 2016 - (MURICIDAE)
- leali, Dermomurex leali R. Houart, 1991 - (MURICIDAE)
- leana, Cardita leana R.W. Dunker, 1860 - (CARDITIDAE)
- leana, Corbicula leana T. Prime, 1864 - (CYRENIDAE)
- leana, Corbicula leana E.C. Von Martens, 1877 - syn of: Corbicula japonica T. Prime, 1864 - (CYRENIDAE)
- leana, Fadyenia leana (C.B. Adams, 1849) - (HELICINIDAE)
- leana, Helicina leana C.B. Adams, 1845 - syn of: Lucidella depressa (J.E. Gray, 1825) - (HELICINIDAE)
- leana, Semele leana W.H. Dall, 1900 - syn of: Semele rosea (G.B. I Sowerby, 1833) - (SEMELIDAE)
- leana, Yaadia leana (Gabb, 1876) † - (STEINMANELLIDAE) (FOSSIL)
- leana, Tellina leana † - (TELLINIDAE) (FOSSIL)
- leana orthodonta, Corbicula leana orthodonta H.A. Pilsbry, 1907 - (CYRENIDAE)
- leander, Volvarina leander J. Brown & H.A. Pilsbry, 1911 † - (MARGINELLIDAE) (FOSSIL)
- leani, Farcimen seminudum leani C. de la Torre & P. Bartsch, 1942 - (MEGALOMASTOMIDAE)
- leanum, Calliostoma leanum (C.B. Adams, 1852) - (CALLIOSTOMATIDAE)
- leanum, Solamen leanum (W.H. Dall, 1897) - (MYTILIDAE)
- leanum, Cochlodesma leanum (T.A. Conrad, 1831) - (PERIPLOMATIDAE)
- leanus, Allopagus leanus (G.P. Deshayes, 1858 †) - (KELLIELLIDAE) (FOSSIL)
- leanus, Solen leanus R.W. Dunker, 1862 - (SOLENIDAE)
- leanzai, Holcostephanus leanzai Gerth, 1925 † - syn of: Olcostephanus laticosta Gerth, 1925 † - (AMMONOIDEA (unassigned)) (FOSSIL)
- leanzai, Corongoceras leanzai Tavera, 1985 † - syn of: Micracanthoceras microcanthum (Oppel, 1865 †) - (HIMALAYITIDAE) (FOSSIL)
- leanzai, Scaphorella leanzai (Lambert 1944) † - (MYOPHORELLIDAE) (FOSSIL)
- Leanzatrigonia, Genus Leanzatrigonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- Learchis, Genus Learchis L.S.R. Bergh, 1896 (FACELINIDAE)
- learorum, Austroharpa learorum M.R. Hart & A. Limpus, 1998 - (HARPIDAE)
- leatherwoodi, Patera leatherwoodi W.L. Pratt, 1971 - (POLYGYRIDAE)
- leathes, Ovula leathes G.W. Tryon, 1885 - syn of: Simnia spelta (C. Linnaeus, 1758) - (OVULIDAE)
- leathesi, Ovula leathesi G.B. I Sowerby, 1828 - syn of: Simnia spelta (C. Linnaeus, 1758) - (OVULIDAE)
- leathesi scaldisia, Neosimnia leathesi scaldisia Schilder, 1933 † - syn of: Simnia spelta scaldisia Schilder, 1933 † - (OVULIDAE) (FOSSIL)
- leavenworthana, Yunnania leavenworthana J.W. Hall, 1856 † - syn of: Amaurotoma leavenworthana (J.W. Hall, 1856 †) - (ARAEONEMATIDAE) (FOSSIL)
- leavenworthana, Amaurotoma leavenworthana (J.W. Hall, 1856 †) - (MICRODOMATIDAE) (FOSSIL)
- leavenworthana, Cyclonema leavenworthana J.W. Hall, 1856 † - syn of: Amaurotoma leavenworthana (J.W. Hall, 1856 †) - (PLATYCERATIDAE) (FOSSIL)
- leavenworthana, Pleurotomaria leavenworthana J.W. Hall, 1856 † - syn of: Amaurotoma leavenworthana (J.W. Hall, 1856 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- leavenworthensis, Allorisma leavenworthensis F.B. Meek & Hayden, 1858 † - syn of: Chaenomya leavenworthensis (F.B. Meek & Hayden, 1858 †) - (EDMONDIIDAE) (FOSSIL)
- leavenworthensis, Chaenomya leavenworthensis (F.B. Meek & Hayden, 1858 †) - (PHOLADOMYIDAE) (FOSSIL)
- leavigata, Aplysia leavigata W. Stimpson, 1855 - (APLYSIIDAE)
- leavigata, Eulima leavigata Lea, 1843 † - syn of: Eulima laevigata Lea, 1843 † - (EULIMIDAE) (FOSSIL)
- lebacanus, Murex lebacanus K. Martin, 1895 - syn of: Murex occa G.B. II Sowerby, 1834 - (MURICIDAE)
- lebasii, Paryphantopsis lebasii J. Slapcinsky, 2005 - (CHAROPIDAE)
- lebeche, Dendropoma lebeche J. Templado, G. Richter & I.S. Calvo, 2016 - (VERMETIDAE)
- lebecki, Phyllodina lebecki Anderson & G.D. Hanna, 1925 † - (TELLINIDAE) (FOSSIL)
- lebedai, Melanopsis lebedai Lueger, 1980 † - (MELANOPSIDAE) (FOSSIL)
- lebedeffi, Gephyroceras lebedeffi Holzapfel, 1899 † - syn of: Ponticeras lebedeffi (Holzapfel, 1899 †) - (GEPHUROCERATIDAE) (FOSSIL)
- lebedeffi, Ponticeras lebedeffi (Holzapfel, 1899 †) - (PONTICERATIDAE) (FOSSIL)
- lebedevi, Unio lebedevi F. Zatrawkin & Y.I. Starobogatov, 1984 - syn of: Nodularia douglasiae (J.E. Gray in E. Griffith & E. Pidgeon, 1834) - (UNIONIDAE)
- leberonensis, Bithynia leberonensis Fischer & J.R. Tournouër, 1873 † - (BITHYNIIDAE) (FOSSIL)
- leberonensis, Natica leberonensis Fischer & R. Tournouer, 1873 † - (NATICIDAE) (FOSSIL)
- leberonensis bofilli, Bithynia leberonensis bofilli (W.A. Wenz, 1928 †) - (BITHYNIIDAE) (FOSSIL)
- leberonensis delphinensis, Bithynia leberonensis delphinensis É.A.A. Locard, 1883 † - (BITHYNIIDAE) (FOSSIL)
- leberonensis neyronensis, Bithynia leberonensis neyronensis É.A.A. Locard, 1883 † - (BITHYNIIDAE) (FOSSIL)
- lebescontei, Architectonica lebescontei Vasseur, 1881 † - (ARCHITECTONICIDAE) (FOSSIL)
- lebescontei, Coelocaulus lebescontei Oehlert & Oehlert, 1888 † - (MURCHISONIIDAE) (FOSSIL)
- Lebetoceras, Genus Lebetoceras Teichert & Glenister, 1954 † (ELLESMEROCERATIDAE) (FOSSIL)
- leblanci, Abderospira leblanci K.V.W. Palmer, 1947 † - (CYLICHNIDAE) (FOSSIL)
- leblanci, Laevitrigonia leblanci (Clausen & Wignall, 1988 †) - (LAEVITRIGONIIDAE) (FOSSIL)
- lebourae, Musculus lebourae K.M. White, 1949 - syn of: Musculus strigatus (S.C.T. Hanley, 1843) - (MYTILIDAE)
- lebouti, Eratoidea lebouti J. Espinosa & J.A. Ortea, 2013 - (MARGINELLIDAE)
- leboutillieri, Platyceras leboutillieri A.H. Clarke, 1907 † - (PLATYCERATIDAE) (FOSSIL)
- lebruni, Chilina lebruni (J.F. Mabille, 1884) - (CHILINIDAE)
- lebruni, Tonicia lebruni A. de Rochebrune, 1884 - (CHITONIDAE)
- lebruni, Conus lebruni G.P. Deshayes, 1865 † - (CONIDAE) (FOSSIL)
- lebruni, Dentalium lebruni (J.F. Mabille & A. de Rochebrune, 1889) - (DENTALIIDAE)
- lebruni, Hiatella lebruni A. de Rochebrune & J.F. Mabille, 1889 - syn of: Hiatella arctica (C. Linnaeus, 1767) - (HIATELLIDAE)
- lebruni, Laevidentalium lebruni J.F. Mabille & A. de Rochebrune, 1889 - syn of: Dentalium lebruni (J.F. Mabille & A. de Rochebrune, 1889) - (LAEVIDENTALIIDAE)
- lebruni, Lymnaea lebruni J.F. Mabille, 1884 - syn of: Chilina lebruni (J.F. Mabille, 1884) - (LYMNAEIDAE)
- lebruni, Trophon lebruni J.F. Mabille & A. de Rochebrune, 1889 - syn of: Xymenopsis muriciformis (P.P. King, 1832) - (MURICIDAE)
- lebruni, Pisidium lebruni J.F. Mabille, 1884 - (SPHAERIIDAE)
- lebrunii, Cardinia lebrunii A.V.M.D. D'Orbigny, 1850 † - (CARDINIIDAE) (FOSSIL)
- lebrunii, Cylichna lebrunii G.P. Deshayes, 1862 † - (CYLICHNIDAE) (FOSSIL)
- lebuensis, Fissurella lebuensis C. Nielsen, 2003 † - (FISSURELLIDAE) (FOSSIL)
- lebuensis, Oliva lebuensis R.A. Philippi, 1887 † - syn of: Olivancillaria claneophila (P.L. Duclos, 1835 †) - (OLIVIDAE) (FOSSIL)
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