- gavaldoni, Calliostoma gavaldoni C. Vilvens, 2009 - (CALLIOSTOMATIDAE)
- gavardanensis, Hexaplex gavardanensis R. Tournouer, 1872 † - (MURICIDAE) (FOSSIL)
- gavarnica, Candidula gavarnica J.R. Bourguignat in É.A.A. Locard, 1894 - syn of: Candidula gigaxii (L. Pfeiffer, 1850) - (HYGROMIIDAE)
- gavdopoulensis, Cretica virginea gavdopoulensis H. Nordsieck, 2004 - (CLAUSILIIDAE)
- gavdosense, Deroceras gavdosense A. Wiktor, K. Vardinoyannis & M. Mylonas, 1994 - (AGRIOLIMACIDAE)
- gavdosensis, Cretica virginea gavdosensis H. Nordsieck, 2004 - (CLAUSILIIDAE)
- gavena, Mimachlamys gavena T. Iredale, 1939 - syn of: Mimachlamys lentiginosa (L.A. Reeve, 1853) - (PECTINIDAE)
- gavilanensis, Solenosteira gavilanensis Rustch, 1934 † - (BUCCINIDAE) (FOSSIL)
- gavilanensis, Massyla gavilanensis B.M. Landau & al., 2012 † - (CANCELLARIIDAE) (FOSSIL)
- gavinae, Euconodoma gavinae B.S. Kues, 1990 † - (MICRODOMATIDAE) (FOSSIL)
- gavirai, Chondrina gavirai Ahuir & Torres, 2017 - (CHONDRINIDAE)
- gavisa, Thersites gavisa T. Iredale, 1933 - (CAMAENIDAE)
- gavisa, Actaeopyramis gavisa J.C. Melvill, 1896 - syn of: Tritia caelata - (CIMIDAE)
- gavisa, Monotigma gavisa J.C. Melvill, 1896 - syn of: Tritia caelata - (NASSARIIDAE)
- gavisa, Monotygma gavisa (J.C. Melvill, 1896) - (PYRAMIDELLIDAE)
- gavisa, Myonia gavisa J.C. Melvill, 1896 - syn of: Tritia caelata - (VACUNELLIDAE)
- gawleri, Sinumelon gawleri G.A. Solem, 1992 - (CAMAENIDAE)
- gawleri, Rhytida gawleri J.W. Brazier, 1872 - (RHYTIDIDAE)
- gayana, Achatina gayana C.B. Adams, 1850 - syn of: Euvaricella angiostoma (C.B. Adams, 1849) - (ACHATINIDAE)
- gayana, Diconoficus gayana (Covacevich & Frassinnetti, 1980 †) - (FICIDAE) (FOSSIL)
- gayana, Omalonyx gayana (A.V.M.D. D'Orbigny, 1837) - (SUCCINEIDAE)
- gayanus, Ancylus gayanus D'Orbigny, 1837 - (PLANORBIDAE)
- gayeae, Nassarius gayeae Erünal-Erentöz, 1958 † - (NASSARIIDAE) (FOSSIL)
- gayi, Lamellidea gayi H.A. Pilsbry & C.M. Cooke, 1915 - (ACHATINELLIDAE)
- gayi, Leptachatina gayi C.M. Cooke, 1911 - (AMASTRIDAE)
- gayi, Peronaeus gayi H.A. Rehder, 1945 - (BULIMULIDAE)
- gayi, Vermiculatus gayi L. Pfeiffer, 1857 - syn of: Scutalus revinctus L.H. Hupé, 1857 - (BULIMULIDAE)
- gayi, Nassarius gayi L.C. Kiener, 1835 - (NASSARIIDAE)
- gayi, Melania gayi Š. Brusina, 1878 † - syn of: Holandriana gaji (Š. Brusina, 1878 †) - (THIARIDAE) (FOSSIL)
- gayi, Clausinella gayi Húpe, 1854 - (VENERIDAE)
- gayi, Venus gayi L.H. Hupé in C. Gay, 1854 - syn of: Tawera elliptica (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- gayi, Clausinella gayi L.H. Hupé, 1854 - syn of: Tawera elliptica (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- gayi, Tawera gayi L.H. Hupé, 1854 - syn of: Tawera elliptica (J.B.P.A. Lamarck, 1818) - (VENERIDAE)
- gayi, Phyllocaulis gayi (P. Fischer, 1871) - (VERONICELLIDAE)
- gayii, Buccinum gayii L.C. Kiener, 1834 - syn of: Nassarius gayi L.C. Kiener, 1835 - (BUCCINIDAE)
- gaylordae, Lucapinella gaylordae H.B. Preston, 1908 - (FISSURELLIDAE)
- gaylordae, Paradrillia gaylordae H.B. Preston, 1905 - syn of: Paradrillia inconstans prunulum (J.C. Melvill & R. Standen, 1901) - (HORAICLAVIDAE)
- gaylordi, Lucina gaylordi Wagner & Schilling, 1923 † - (LUCINIDAE) (FOSSIL)
- gaylordi, Olivella gaylordi J. Ford, 1894 - (OLIVELLIDAE)
- gaylordianum, Epitonium gaylordianum H.N. Lowe, 1932 - syn of: Epitonium gradatum (G.B. II Sowerby, 1844) - (EPITONIIDAE)
- gaymardi, Mesodesma gaymardi G.P. Deshayes, 1832 - syn of: Atactodea cuneata (J.B.P.A. Lamarck, 1818) - (MESODESMATIDAE)
- gaymardi, Striarca gaymardi (B.C.M. Payraudeau, 1826) - (NOETIIDAE)
- gayndahensis, Therasia gayndahensis (J.W. Brazier, 1875) - (CHAROPIDAE)
- Gayneoconus, Genus Gayneoconus Stinchcomb & Angeli, 2002 (HYPSELOCONIDAE) (FOSSIL)
- gayracaensis, Granulina gayracaensis T. McCleery, 2010 - (MARGINELLIDAE)
- gaytani, Ammonites gaytani Klipstein, 1843 † - syn of: Proarcestes gaytani (Klipstein, 1843 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- gaytani, Proarcestes gaytani (Klipstein, 1843 †) - (ARCESTIDAE) (FOSSIL)
- gaytani, Myophoria gaytani Klipstein, 1843 † - (MYOPHORIIDAE) (FOSSIL)
- gaytani, Turritella gaytani Klipstein, 1843 † - syn of: Protorcula subpunctata (Münster, 1841 †) - (TURRITELLIDAE) (FOSSIL)
- gaza, Egestula gaza (H.H. Suter, 1909) - (CHAROPIDAE)
- gaza, Conus gaza C.W. Johnson & H.A. Pilsbry, 1911 † - syn of: Dauciconus multiliratus (Böse, 1906 †) - (CONIDAE) (FOSSIL)
- Gaza, Genus Gaza R.B. Watson, 1879 (MARGARITIDAE)
- gaza, Pteropurpura gaza M. Smith, 1940 - syn of: Pteropurpura festiva (R.B. Hinds, 1844) - (MURICIDAE)
- gaza, Murex gaza M. Smith, 1940 - syn of: Pteropurpura festiva (R.B. Hinds, 1844) - (MURICIDAE)
- gaza, Benthonella gaza W.H. Dall, 1889 - syn of: Benthonella tenella (J.G. Jeffreys, 1869) - (RISSOIDAE)
- gazae, Cycloscala gazae R.N. Kilburn, 1985 - (EPITONIIDAE)
- Gazameda, Genus Gazameda T. Iredale, 1924 (TURRITELLIDAE)
- Gazdaganites, Genus Gazdaganites Mirzoyev, 1969 (AMMONOIDEA (UNASSIGNED)) (FOSSIL)
- gazdickii, Austrochlamys gazdickii Jonkers 2003 † - (PECTINIDAE) (FOSSIL)
- gazdzickii, Tornatellaea gazdzickii (F. Schröder, 1995 †) - (ACTEONIDAE) (FOSSIL)
- gazdzickii, Leoclunipecten gazdzickii (H.A. Jonkers, 2003 †) - (PECTINIDAE) (FOSSIL)
- gazellae, Dentalium gazellae H.P. Plate, 1908 - syn of: Episiphon gazellae (H.P. Plate, 1908) - (DENTALIIDAE)
- gazellae, Episiphon gazellae (H.P. Plate, 1908) - (GADILINIDAE)
- gazellae, Mangelia gazellae (H. Strebel, 1905) - (MANGELIIDAE)
- gazellae, Bela gazellae H. Strebel, 1905 - syn of: Mangelia gazellae (H. Strebel, 1905) - (MANGELIIDAE)
- gazellae, Teredora gazellae G.F. Roch, 1929 - syn of: Teredora princesae (P.B. Sivickis, 1928) - (TEREDINIDAE)
- gazeoides, Amaea gazeoides J.T. Kuroda & T. Habe, 1950 - (EPITONIIDAE)
- gaziense, Ellobium gaziense (H.B. Preston, 1913) - (ELLOBIIDAE)
- gaziense, Auriculodes gaziense (H.B. Preston, 1913) - syn of: Ellobium gaziense (H.B. Preston, 1913) - (ELLOBIIDAE)
- gaziensis, Scala gaziensis H.B. Preston MS - syn of: Epitonium robillardi (G.B. III Sowerby, 1894) - (EPITONIIDAE)
- Gazini, syn of: Genus Omphalomargarites T. Habe & K. Itτ, 1965 (TROCHIDAE)
- gdovense, Proterocameroceras gdovense Balaschov, 1968 † - (PROTEROCAMEROCERATIDAE) (FOSSIL)
- gea, Neridomus gea (A.V.M.D. D'Orbigny, 1850 †) - (NERIDOMIDAE) (FOSSIL)
- gea, Neritoma gea Morris 1949 † - (NERITIDAE) (FOSSIL)
- gea, Avicula gea d'Orbigny, 1849 † - (PTERIIDAE) (FOSSIL)
- gea, Megastomia gea (P. Bartsch, 1915) - (PYRAMIDELLIDAE)
- gealei, Bulimus gealei A. Adams, 1867 - syn of: Mesembrinus fenestrellus E.C. Von Martens, 1864 - (BULIMULIDAE)
- gealei, Isomeria gealei (E.A. Smith, 1877) - (CAMAENIDAE)
- gealei, Tucetona gealei (G.F. Angas, 1873) - (GLYCYMERIDIDAE)
- gealei, Glycymeris gealei G.F. Angas, 1873 - syn of: Tucetona gealei (G.F. Angas, 1873) - (GLYCYMERIDIDAE)
- gealei, Tomocyclus gealei J.C.H. Crosse & P.H. Fischer, 1872 - (MEGALOMASTOMIDAE)
- gealei, Pseudodaphnella gealei (E.A. Smith, 1882) - (RAPHITOMIDAE)
- gealei, Bostrichocentrum gealei (A. Adams, 1872) - (UROCOPTIDAE)
- gearyae, Melanopsis gearyae T.A. Neubauer, M. Harzhauser & al., 2014 † - (MELANOPSIDAE) (FOSSIL)
- geayi, Helicophanta geayi E. Fischer-Piette, 1950 - (ACAVIDAE)
- geayi, Assiminea geayi É. Lamy, 1910 - (ASSIMINEIDAE)
- geayi, Neniops geayi (F.P. Jousseaume, 1899) - (CLAUSILIIDAE)
- geayi, Finella geayi É. Lamy, 1910 - (SCALIOLIDAE)
- geayi, Germainaia geayi (J. Germain, 1911) - (UNIONIDAE)
- gebaliana, Maizuria gebaliana Skwarko, 1967 † - (BAKEVELLIIDAE) (FOSSIL)
- gebennica, Triptychia gebennica (Fontannes, 1884) † - (FILHOLIIDAE) (FOSSIL)
- gebhardi, Platyostoma gebhardi (T.A. Conrad, 1840 †) - (PLATYCERATIDAE) (FOSSIL)
- gebhardti, Bruggenina gebhardti (H. Knipper, 1956) - (ACHATINIDAE)
- gebharti, Bythiospeum gebharti H. Wagner, 1931 - (HYDROBIIDAE)
- gebiensis, Planispira gebiensis E.R. Sykes, 1904 - (CAMAENIDAE)
- gebiensis, Leptopoma gebiensis H.C. Fulton, 1904 - (CYCLOPHORIDAE)
- gebleri, Radix gebleri (A.T. von Middendorff, 1851) - (LYMNAEIDAE)
- gebzensis, Megaphyllites gebzensis Fantini Sestini, 1988 † - (MEGAPHYLLITIDAE) (FOSSIL)
- Geczya, syn of: Genus Arieticeras Seguenza , 1885 (HILDOCERATIDAE) (FOSSIL)
- Geczyceras, syn of: Genus Hammatoceras Unknown (HAMMATOCERATIDAE) (FOSSIL)
- geczyi, Neophylloceras geczyi M. Collignon, 1971 † - syn of: Neophylloceras surya (E. Forbes, 1846 †) - (NEOPHYLLOCERATIDAE) (FOSSIL)
- gedanensis, Strobilops gedanensis (Klebs, 1886) † - (STROBILOPSIDAE) (FOSSIL)
- geddingsianus, Unio geddingsianus I. Lea, 1840 - syn of: Elliptio cylindracea L.S. Frierson, 1927 - (UNIONIDAE)
- gedeana, Arinia gedeana (O.F. von Möllendorff, 1897) - (DIPLOMMATINIDAE)
- gedeana, Palaina gedeana O.F. von Möllendorff, 1897 - (DIPLOMMATINIDAE)
- gediceae, Horologica gediceae A. Cecalupo & I. Perugia, 2014 - (CERITHIOPSIDAE)
- gedinganensis, Scapharca gedinganensis K. Martin, 1910 † - (ARCIDAE) (FOSSIL)
- gedinganensis, Pecten gedinganensis Martin, 1909 † - (PECTINIDAE) (FOSSIL)
- gedinganensis, Cymbiola gedinganensis (K. Martin, 1895 †) - (VOLUTIDAE) (FOSSIL)
- gedjirica, Pontohydrobia gedjirica Badzoshvili, 1979 † - (HYDROBIIDAE) (FOSSIL)
- gedlingae, Lyncina gedlingae C.N. Cate, 1968 - syn of: Lyncina leviathan titan F.A. Schilder & M. Schilder, 1962 - (CYPRAEIDAE)
- gedrosiana, Bathytoma cataphracta gedrosiana E.W. Vredenburg, 1925 - (BORSONIIDAE)
- gedrosiana, Radix gedrosiana (T.N. Annandale & B. Prashad, 1919) - (LYMNAEIDAE)
- gedrosiana, Varicospira javana gedrosiana (E.W. Vredenburg, 1928) - (ROSTELLARIIDAE)
- gedrosiana, Terebra gedrosiana E.W. Vredenburg, 1925 † - (TEREBRIDAE) (FOSSIL)
- gedrosiana, Dosinia pseudoargus gedrosiana E.W. Vredenburg, 1928 - (VENERIDAE)
- gedrosiana rectilabrum, Radix gedrosiana rectilabrum (T.N. Annandale & B. Prashad, 1919) - (LYMNAEIDAE)
- gedrosica, Eulimella gedrosica J.C. Melvill, 1904 - (PYRAMIDELLIDAE)
- geelongensis, Eutrephoceras geelongensis (Foord, 1891 †) - (NAUTILIDAE) (FOSSIL)
- geeraertsi, Conus geeraertsi Poppe & Tagaro, 2017 - (CONIDAE)
- Geermuceras, Genus Geermuceras Liang , 1983 (ARAXOCERATIDAE) (FOSSIL)
- geertsi, Cyclonenia geertsi J. Grego & M. Szekeres, 2004 - (CLAUSILIIDAE)
- geertsi, Vanitrochus geertsi G.T. Poppe, S.P. Tagaro & H. Dekker, 2006 - (TROCHIDAE)
- gefion, Arcestes gefion Mojsisovics, 1873 † - syn of: Cladiscites tornatus (J. Von Hauer, 1846 †) - (ARCESTIDAE) (FOSSIL)
- Gegania, Genus Gegania Jeffreys, 1884 (MATHILDIDAE) (FOSSIL)
- Gegania, syn of: Genus Tuba I. Lea, 1833 (MATHILDIDAE)
- gegenbauri, Thliptodon gegenbauri J.E.V. Boas, 1886 - (CLIONIDAE)
- gegika, Acrotoma gegika A.N. Suvorov, 2002 - (CLAUSILIIDAE)
- gehrelsi, Hecetastoma gehrelsi Rohr & Blodgett, 2008 † - (ORIOSTOMATIDAE) (FOSSIL)
- Geidoloceras, Genus Geidoloceras Krφger , 2008 (PSEUDORTHOCERATIDAE) (FOSSIL)
- geigeri, Caecum geigeri M. Pizzini & B.K. Raines, 2011 - (CAECIDAE)
- geigeri, Cosmioconcha geigeri E.F. Garcia, 2006 - (COLUMBELLIDAE)
- geigeri, Condylocardia geigeri E.V. Coan, 2003 - (CONDYLOCARDIIDAE)
- geigeri, Zeidora geigeri Helwerda & Wesselingh, 2014 † - (FISSURELLIDAE) (FOSSIL)
- geigeri, Haliotis geigeri B. Owen, 2014 - (HALIOTIDAE)
- geigeri, Scabricola geigeri G.T. Poppe, S.P. Tagaro & R. Salisbury, 2009 - (MITRIDAE)
- geigeri, Pseudopusula geigeri D. Fehse & J. Grego, 2014 - (TRIVIIDAE)
- geijskesi, Tivela geijskesi C.O. Van Regteren Altena, 1968 - (VENERIDAE)
- geikei, Rissoina geikei A. von Koenen † - (RISSOINIDAE) (FOSSIL)
- geikiei, Zebinella geikiei (A. von Koenen, 1892 †) - (RISSOINIDAE) (FOSSIL)
- geikiei, Paratibetites geikiei Mojsisovics, 1896 † - (TIBETITIDAE) (FOSSIL)
- geikotsucola, Benthomodiolus geikotsucola T.A. Okutani & K. Miyazaki, 2007 - (MYTILIDAE)
- geineri, Aploceras geineri A.V.M.D. D'Orbigny, 1849 † - (CARBACTINOCERATIDAE) (FOSSIL)
- geinitzi, Hyattoceras geinitzi C. Gemmellaro, 1887 † - (HYATTOCERATIDAE) (FOSSIL)
- geinitzi, Unklesbayella geinitzi (F.B. Meek, 1867 †) - (MEGADESMIDAE) (FOSSIL)
- geinitzi, Orthoceras geinitzi d'Orbigny, 1850 † - (ORTHOCERATIDAE) (FOSSIL)
- geinitzi, Pseudonautilus geinitzi (Oppel, 1865 †) - (PSEUDONAUTILIDAE) (FOSSIL)
- geinitzi, Turbo geinitzi Woods † - (TURBINIDAE) (FOSSIL)
- geinitzi, Gemmula geinitzi (A. von Koenen, 1870 †) - (TURRIDAE) (FOSSIL)
- Geinitzia, Genus Geinitzia Gemmellaro, 1896 (BIVALVIA INCERTAE SEDIS) (FOSSIL)
- geinitziana, Loxonema geinitziana H.B. Geinitz, 1848 † - syn of: Turbonilla altenburgensis H.B. Geinitz, 1848 † - (LOXONEMATIDAE) (FOSSIL)
- geinitziana, Paranowakia geinitziana (G. Richter, 1854 †) - (PARANOWAKIIDAE) (FOSSIL)
- geinitziana, Streptacis geinitziana H.B. Geinitz, 1848 † - syn of: Turbonilla altenburgensis H.B. Geinitz, 1848 † - (STREPTACIDIDAE) (FOSSIL)
- geinitzii, Hamites geinitzii A.V.M.D. D'Orbigny, 1850 † - syn of: Allocrioceras angustum (Sowerby, 1850 †) - (HAMITIDAE) (FOSSIL)
- geinitzii, Scaphites geinitzii d'Orbigny, 1850 † - (SCAPHITIDAE) (FOSSIL)
- geinitzii laevior, Scaphites geinitzii laevior Wright, 1979 † - (SCAPHITIDAE) (FOSSIL)
- geisingensis, Brasilia geisingensis Dietze & al., 2014 † - (GRAPHOCERATIDAE) (FOSSIL)
- Geisonoceras, Genus Geisonoceras Hyatt, 1884 (GEISONOCERATIDAE) (FOSSIL)
- GEISONOCERATIDAE Zhuravleva, 1959 - Family (CEPHALOPODA-ORTHOCERATOIDEA [Subclass]-ORTHOCERIDA [Order]) (FOSSIL)
- Geisonocerina, Genus Geisonocerina Foerste, 1935 (ORTHOCERIDA (UNASSIGNED)) (FOSSIL)
- Geisonoceroides, Genus Geisonoceroides Flower, 1939 (SPYROCERATIDAE) (FOSSIL)
- geissei, Anadara geissei W. Kobelt, 1891 - syn of: Mosambicarca hians (L.A. Reeve, 1844) - (ARCIDAE)
- geissei, Arca geissei W. Kobelt, 1891 - syn of: Mosambicarca hians (L.A. Reeve, 1844) - (ARCIDAE)
- geisserti, Bythinella geisserti H.D. Boeters & G. Falkner, 2003 - (BYTHINELLIDAE)
- geisserti, Carychium geisserti Schlickum & Strauch in Schlickum, 1978 † - (ELLOBIIDAE) (FOSSIL)
- geisserti, Triptychia geisserti H. Nordsieck, 1974 † - (FILHOLIIDAE) (FOSSIL)
- Geitodoris, Genus Geitodoris L.S.R. Bergh, 1892 (DISCODORIDIDAE)
- Geitonoceras, Genus Geitonoceras Zhuravleva, 1974 (NAUTILIDA (UNASSIGNED)) (FOSSIL)
- gejiuense, Plagiostoma gejiuense H. Guo, 1985 † - (LIMIDAE) (FOSSIL)
- gejiuensis, Bakevellia gejiuensis H. Guo, 1985 † - (BAKEVELLIIDAE) (FOSSIL)
- gejiuensis, Modiolus gejiuensis H. Guo, 1985 † - (MYTILIDAE) (FOSSIL)
- gejiuensis, Homomya gejiuensis H. Guo, 1985 † - (PHOLADOMYIDAE) (FOSSIL)
- gela, Pleurobranchaea gela Er. Marcus & Ev. Marcus, 1966 - syn of: Pleurobranchaea inconspicua L.S.R. Bergh, 1897 - (PLEUROBRANCHAEIDAE)
- Gelagna, Genus Gelagna L.W. Schaufuss, 1869 (RANELLIDAE)
- gelasima, Bistolida gelasima J.C. Melvill, 1888 - syn of: Bistolida stolida (C. Linnaeus, 1758) - (CYPRAEIDAE)
- Gelasinites, Genus Gelasinites Buckman, 1925 (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- gelasinosa, Stenothyra gelasinosa R.E. Golding, 2014 - (STENOTHYRIDAE)
- gelasinosa apiosa, Stenothyra gelasinosa apiosa R.E. Golding, 2014 - (STENOTHYRIDAE)
- gelasinosa phrixa, Stenothyra gelasinosa phrixa R.E. Golding, 2014 - (STENOTHYRIDAE)
- Gelasinostoma, Genus Gelasinostoma Gardner, 1947 (COLLONIIDAE) (FOSSIL)
- gelasinus, Gelasinites gelasinus Buckman † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- gelata, Papuina gelata J.C. Cox, 1873 - (CAMAENIDAE)
- gelatinosum, Pseudamussium gelatinosum J.F. Mabille & A. de Rochebrune, 1889 - syn of: Delectopecten vitreus (J.F. Gmelin, 1791) - (PECTINIDAE)
- gelatinosus, Delectopecten gelatinosus J.F. Mabille & A. de Rochebrune, 1889 - syn of: Delectopecten vitreus (J.F. Gmelin, 1791) - (PECTINIDAE)
- gelatus, Tremoctopus gelatus A. Thomas, 1977 - (TREMOCTOPODIDAE)
- geldiayana, Pseudamnicola geldiayana H. Schütt, 1970 - (HYDROBIIDAE)
- gelegelei, Ptychotrema gelegelei (O.C. Oke & F.I. Alohan, 2004) - (STREPTAXIDAE)
- geleppei, Hemitissotia geleppei Pervinquiere, 1935 † - syn of: Hemitissotia galleppei (Pervinquiere, 1935 †) - (VASCOCERATIDAE) (FOSSIL)
- gelgushkense, Uraloceras gelgushkense Ruzhentsev, 1956 † - (PARAGASTRIOCERATIDAE) (FOSSIL)
- gelida, Cylichna gelida (E.A. Smith, 1907) - (CYLICHNIDAE)
- gelida, Philine gelida J. van der Linden, 1995 - (PHILINIDAE)
- gelida, Paralaoma gelida T. Iredale, 1941 - (PUNCTIDAE)
- gelida, Onoba gelida (E.A. Smith, 1907) - (RISSOIDAE)
- gelida, Basilissa gelida K.H. Barnard, 1963 - (SEGUENZIIDAE)
- gelidus, Bulimulus gelidus L.A. Reeve, 1849 - (BULIMULIDAE)
- gelidus, Janolus gelidus Millen, 2016 - (PROCTONOTIDAE)
- gelindensis, Brachidontes gelindensis E. Vincent † - (MYTILIDAE) (FOSSIL)
- gellida, Fluxinella gellida (K.H. Barnard, 1963) - (SEGUENZIIDAE)
- Gellina, syn of: Genus Doto L. Oken, 1815 (DOTIDAE)
- Geloina, Subgenus Polymesoda (Geloina) J.E. Gray, 1842 (CYRENIDAE)
- gelriana, Cancellaria contorta gelriana A.W. Janssen, 1972 † - (CANCELLARIIDAE) (FOSSIL)
- Geltena, Genus Geltena Stephenson, 1946 (MACTRIDAE) (FOSSIL)
- Gemaspira, Genus Gemaspira Olson, 1956 (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- gembacana, Arcopsis gembacana (Martin, 1883 †) - (NOETIIDAE) (FOSSIL)
- gembacanus, Conus gembacanus Martin, 1884 † - (CONIDAE) (FOSSIL)
- gembacanus, Glycymeris gembacanus Martin, 1883 † - (GLYCYMERIDIDAE) (FOSSIL)
- gemela, Doriopsilla gemela T.M. Gosliner, C.W. Schaefer & S.V. Millen, 1999 - (DENDRODORIDIDAE)
- gemella, Hydroginella gemella F. Boyer, 2001 - (MARGINELLIDAE)
- gemella, Oscilla gemella Peñas & Rolán, 2017 - (PYRAMIDELLIDAE)
- gemellaroi, Allochiton gemellaroi Fucini, 1912 † - (ISCHNOCHITONIDAE) (FOSSIL)
- gemellata, Cyclodontina gemellata (C.M.F. Ancey in H.A. Pilsbry, 1901) - (ODONTOSTOMIDAE)
- Gemellima, Subgenus Limatula (Gemellima) T. Iredale, 1929 (LIMIDAE)
- gemina, Hemiplecta humphreysiana gemina (G. von dem Busch, 1842) - (ARIOPHANTIDAE)
- gemina, Amplirhagada gemina F. Köhler, 2010 - (CAMAENIDAE)
- gemina, Euphaedusa gemina (P.V. Gredler, 1881) - (CLAUSILIIDAE)
- gemina, Pleuropoma oahuensis gemina M.C. Neal, 1934 - (HELICINIDAE)
- gemina, Monacha gemina B. Hausdorf, 2000 - (HYGROMIIDAE)
- gemina, Lima gemina T. Iredale, 1929 - (LIMIDAE)
- gemina, Alvania gemina E. Rolán & J.M. Hernández, 2007 - (RISSOIDAE)
- gemina davidi, Euphaedusa gemina davidi H. Nordsieck, 2001 - (CLAUSILIIDAE)
- geminans, Cardiola geminans Barrande, 1881 † - (CARDIOLIDAE) (FOSSIL)
- geminata, Theba geminata (A. Mousson, 1857) - (HELICIDAE)
- geminata, Alaginella geminata (C. Hedley, 1912) - (MARGINELLIDAE)
- geminata, Nerinea geminata Stanton, 1947 † - (NERINEIDAE) (FOSSIL)
- geminata, Zygochlamys geminata (G.B. II Sowerby, 1846 †) - (PECTINIDAE) (FOSSIL)
- geminata, Pleurostemma geminata (J. Gundlach in L. Pfeiffer, 1870) - (UROCOPTIDAE)
- geminata, Neoathleta geminata (F.E. Edwards, 1854 †) - (VOLUTIDAE) (FOSSIL)
- geminata clausoinflata, Theba geminata clausoinflata (A. Mousson, 1857) - (HELICIDAE)
- geminata glabra, Nerinea geminata glabra Stanton, 1947 † - (NERINEIDAE) (FOSSIL)
- geminata nipensis, Pleurostemma geminata nipensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- geminata parvilineata, Nerinea geminata parvilineata Stanton, 1947 † - (NERINEIDAE) (FOSSIL)
- geminata regia, Pleurostemma geminata regia C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- geminata zitteli, Theba geminata zitteli (A. Mousson, 1857) - (HELICIDAE)
- geminatum, Cerithium geminatum J.P.S. Grateloup, 1832 † - syn of: Gourmya tuberosa (J.P.S. Grateloup, 1847 †) - (CERITHIIDAE) (FOSSIL)
- geminatum, Dentalium geminatum G.A. Goldfuss, 1841 † - (DENTALIIDAE) (FOSSIL)
- geminatum, Haplonepion geminatum (E.C. Von Martens, 1895) - (STREPTAXIDAE)
- geminatum fistulosum, Gourmya geminatum fistulosum J.P.S. Grateloup, 1847 † - syn of: Gourmya tuberosa (J.P.S. Grateloup, 1847 †) - (CERITHIIDAE) (FOSSIL)
- geminatum tuberosum, Cerithium geminatum tuberosum J.P.S. Grateloup, 1847 † - syn of: Gourmya tuberosa (J.P.S. Grateloup, 1847 †) - (CERITHIIDAE) (FOSSIL)
- geminatus, Ceratites geminatus Mojsisovics, 1886 † - syn of: Frechites laqueatus (Lindstroem, 1865 †) - (CERATITIDAE) (FOSSIL)
- geminella, Clausilia cruciata geminella M. Klemm, 1972 - (CLAUSILIIDAE)
- gemini, Pleurobranchaea gemini W. Macnae, 1962 - syn of: Pleurobranchaea brockii L.S.R. Bergh, 1897 - (PLEUROBRANCHAEIDAE)
- Geminicoptis, Genus Geminicoptis M.L. Jaume & C. de la Torre, 1972 (UROCOPTIDAE)
- geminicostata, Platyclymenia geminicostata Petter, 1960 † - syn of: Platyclymenia annulata (G.G. Münster, 1832 †) - (PLATYCLYMENIIDAE) (FOSSIL)
- Geminidens, Subgenus Gastrocopta (Geminidens) H.A. Pilsbry, 1930 (GASTROCOPTIDAE)
- geminidens, Geminidens geminidens (H.A. Pilsbry, 1917) - (GASTROCOPTIDAE)
- Gemininodosa, Genus Gemininodosa Cook & Camilleri, 1997 (ORIOSTOMATIDAE) (FOSSIL)
- geministriatus, Colus geministriatus G.J. Pfeffer, 1886 - syn of: Anomalisipho verkruezeni (W. Kobelt, 1876) - (BUCCINIDAE)
- Geminites, Subgenus Distichoceras (Geminites) Baloge & Cariou, 1997 (OPPELIIDAE) (FOSSIL)
- geminocarinata, Goniasma geminocarinata Chronic, 1952 † - syn of: Donaldospira geminocarinata (Chronic, 1952 †) - (GONIASMATIDAE) (FOSSIL)
- geminocarinata, Murchisonia geminocarinata Chronic, 1952 † - syn of: Donaldospira geminocarinata (Chronic, 1952 †) - (MURCHISONIIDAE) (FOSSIL)
- geminocarinata, Donaldospira geminocarinata (Chronic, 1952 †) - (ORTHONEMIDAE) (FOSSIL)
- geminolineata, Oenopota geminolineata H.B.S. Friele, 1879 - syn of: Oenopota violacea (J.W. Mighels & C.B. Adams, 1842) - (MANGELIIDAE)
- Geminoropa, Subgenus Flammocharopa (Geminoropa) T. Iredale, 1933 (CHAROPIDAE)
- geminoropiformis, Damonita geminoropiformis (F.M. Climo, 1981) - (CHAROPIDAE)
- geminoropiformis, Chaureopa geminoropiformis F.M. Climo, 1981 - syn of: Damonita geminoropiformis (F.M. Climo, 1981) - (CHAROPIDAE)
- geminostriatus, Colus geminostriatus G.J. Pfeffer, 1886 - syn of: Colus latericeus (H.P.C. Møller, 1842) - (BUCCINIDAE)
- Geminula, Genus Geminula W.A. Lindholm, 1925 (ENIDAE)
- geminum, Parallelodon geminum L. Waagen, 1881 † - (PARALLELODONTIDAE) (FOSSIL)
- geminum, Mimimitoceras geminum W. Korn, 1992 † - (PRIONOCERATIDAE) (FOSSIL)
- geminus, Heliacus geminus (R. Bieler, 1993) - (ARCHITECTONICIDAE)
- geminus, Torinista geminus R. Bieler, 1993 - syn of: Heliacus geminus (R. Bieler, 1993) - (ARCHITECTONICIDAE)
- geminus, Goniobranchus geminus (W.B. Rudman, 1987) - (CHROMODORIDIDAE)
- geminus, Metafruticicola coartata geminus A. Fuchs & F. Käufel, 1936 - (HYGROMIIDAE)
- geminus, Gyraulus geminus (Š. Brusina, 1897 †) - (PLANORBIDAE) (FOSSIL)
- geminus, Unio geminus I. Lea, 1856 - syn of: Unio abbevillensis I. Lea, 1857 - (UNIONIDAE)
- Gemitelix, Genus Gemitelix T. Iredale, 1933 (CAMAENIDAE)
- Gemixystus, Genus Gemixystus T. Iredale, 1929 (MURICIDAE)
- gemma, Achatinella gemma L. Pfeiffer, 1857 - syn of: Newcombia plicata gemma L. Pfeiffer, 1857 - (ACHATINELLIDAE)
- gemma, Newcombia plicata gemma L. Pfeiffer, 1857 - (ACHATINELLIDAE)
- gemma, Achatina gemma W.H. Benson, 1856 - syn of: Glessula gemma (W.H. Benson, 1856) - (ACHATINIDAE)
- gemma, Pisinna gemma C.F. Laseron, 1950 - syn of: Pisinna approximata (W.F. Petterd, 1884) - (ANABATHRIDAE)
- gemma, Astarte gemma J.B.M. Dana, 1847 † - syn of: Pleurikodonta gemma (J.B.M. Dana, 1847 †) - (ASTARTIDAE) (FOSSIL)
- gemma, Bucanopsis gemma (Lindström, 1884 †) - (BELLEROPHONTIDAE) (FOSSIL)
- gemma, Buccinum gemma R.A. Philippi, 1849 - syn of: Phrontis complanata (W.L. Powys, 1835) - (BUCCINIDAE)
- gemma, Bulla gemma A.E. Verrill, 1880 - syn of: Roxania semilaevis (G. Seguenza, 1880) - (BULLIDAE)
- gemma, Falsimargarita gemma (E.A. Smith, 1915) - (CALLIOSTOMATIDAE)
- gemma, Spurlingia gemma T. Iredale, 1937 - (CAMAENIDAE)
- gemma, Cerithium gemma G.B. II Sowerby, 1855 - syn of: Cerithium zonatum (W. Wood, 1828) - (CERITHIIDAE)
- gemma, Chaetopleura gemma W.H. Dall, 1879 - (CHAETOPLEURIDAE)
- gemma, Cardiomya gemma A.E. Verrill & K.J. Bush, 1898 - syn of: Cardiomya costellata (G.P. Deshayes, 1835) - (CUSPIDARIIDAE)
- gemma, Modiolarca gemma J.E. Cooper & H.B. Preston, 1910 - syn of: Gaimardia mesembrina (J.C. Melvill & R. Standen, 1907) - (CYAMIIDAE)
- gemma, Mucrodactylites gemma (Bonarelli, 1894 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- gemma, Collina gemma Bonarelli, 1894 † - syn of: Mucrodactylites gemma (Bonarelli, 1894 †) - (DACTYLIOCERATIDAE) (FOSSIL)
- gemma, Diaphana gemma A.E. Verrill, 1880 - syn of: Roxania semilaevis (G. Seguenza, 1880) - (DIAPHANIDAE)
- gemma, Haliotis gemma L.A. Reeve, 1846 - syn of: Haliotis varia C. Linnaeus, 1758 - (HALIOTIDAE)
- Gemma, Subgenus Helicina (Gemma) A. Wagner, 1905 (HELICINIDAE)
- gemma, Gemma gemma (H.B. Preston, 1903) - (HELICINIDAE)
- gemma, Liotia gemma Auct. non M. Tuomey & F.S. Holmes, 1856 - syn of: Arene tricarinata (R.E.C. Stearns, 1872) - (LIOTIIDAE)
- gemma, Lamellolucina gemma (L.A. Reeve, 1850) - (LUCINIDAE)
- gemma, Tenaturris gemma (E.A. Smith, 1884) - (MANGELIIDAE)
- gemma, Margarites gemma E.A. Smith, 1915 - syn of: Falsimargarita gemma (E.A. Smith, 1915) - (MARGARITIDAE)
- gemma, Marginella gemma A. Adams, 1850 - (MARGINELLIDAE)
- gemma, Volvarina gemma J. Espinosa & J.A. Ortea, 2015 - (MARGINELLIDAE)
- gemma, Pleurikodonta gemma (J.B.M. Dana, 1847 †) - (MEGADESMIDAE) (FOSSIL)
- gemma, Maxwellia gemma (G.B. II Sowerby, 1879) - (MURICIDAE)
- gemma, Crenella gemma A.A. Olsson & J.T.L. McGinty, 1958 - (MYTILIDAE)
- gemma, Poteria gemma E. Chitty, 1857 - (NEOCYCLOTIDAE)
- Gemma, syn of: Subgenus Oxychilus (Morlina) A. Wagner, 1914 (OXYCHILIDAE)
- gemma, Platyclymenia gemma Nikolaeva & Ivanovich, 2005 † - (PLATYCLYMENIIDAE) (FOSSIL)
- gemma, Perotrochus gemma F.M. Bayer, 1966 - syn of: Perotrochus quoyanus (P. Fischer & A.C. Bernardi, 1856) - (PLEUROTOMARIIDAE)
- gemma, Chondrothyrella assimilis gemma C. de la Torre & P. Bartsch, 1938 - (POMATIIDAE)
- gemma, Miralda gemma (A. Adams, 1861) - (PYRAMIDELLIDAE)
- gemma, Gutturnium gemma M. Connolly, 1929 - syn of: Gutturnium muricinum (P.F. Röding, 1798) - (RANELLIDAE)
- gemma, Solariella gemma M. Tuomey & Holmes, 1856 † - (SOLARIELLIDAE) (FOSSIL)
- gemma, Glessula gemma (W.H. Benson, 1856) - (SUBULINIDAE)
- gemma, Hemistomia gemma W.F. Ponder, 1982 - (TATEIDAE)
- gemma, Tellina gemma A.A. Gould, 1853 - syn of: Tellina inaequistriata E. Donovan, 1802 - (TELLINIDAE)
- gemma, Neotrigonia gemma T. Iredale, 1924 - (TRIGONIIDAE)
- gemma, Cypraeerato gemma (A.R.J.B. Bavay, 1917) - (TRIVIIDAE)
- gemma, Pleurotoma gemma E.A. Smith, 1884 - syn of: Tenaturris gemma (E.A. Smith, 1884) - (TURRIDAE)
- Gemma, Genus Gemma G.P. Deshayes, 1853 (VENERIDAE)
- gemma, Gemma gemma (J.G. Totten, 1834) - (VENERIDAE)
- gemma, Policordia gemma (A.E. Verrill, 1880) - (VERTICORDIIDAE)
- gemma marmorata, Chaetopleura gemma marmorata W.H. Dall, 1919 - (CHAETOPLEURIDAE)
- gemma pygmaea, Cypraeerato gemma pygmaea F.A. Schilder, 1933 - (TRIVIIDAE)
- gemma suturalis, Hemistomia gemma suturalis W.F. Ponder, 1982 - (TATEIDAE)
- gemmacea, Dendrodoris gemmacea J. Alder & A. Hancock, 1864 - syn of: Dendrodoris krusensternii (J.E. Gray, 1850) - (DENDRODORIDIDAE)
- gemmae, Joculator gemmae A. Cecalupo & I. Perugia, 2012 - (CERITHIOPSIDAE)
- gemmata, Acanthopleura gemmata (H.M.D. de Blainville, 1825) - (CHITONIDAE)
- gemmata, Atlantilux gemmata (G.B. II Sowerby, 1874) - (COSTELLARIIDAE)
- gemmata, Crossea gemmata C. Hedley, 1912 - (CROSSEOLIDAE)
- gemmata, Gemmocolus gemmata (Powell, 1935 †) - (FASCIOLARIIDAE) (FOSSIL)
- gemmata, Peristernia gemmata (L.A. Reeve, 1847) - (FASCIOLARIIDAE)
- gemmata, Fissurella gemmata K.T. Menke, 1847 - (FISSURELLIDAE)
- gemmata, Profundisepta gemmata (M.M. Schepman, 1908) - (FISSURELLIDAE)
- gemmata, Paradrillia gemmata T. Shuto, 1983 - (HORAICLAVIDAE)
- gemmata, Caspiohydrobia gemmata (C.M. Kolesnikov, 1947) - (HYDROBIIDAE)
- gemmata, Iravadia gemmata (W.F. Ponder, 1984) - (IRAVADIIDAE)
- gemmata, Pseudonoba gemmata W.F. Ponder, 1984 - syn of: Iravadia gemmata (W.F. Ponder, 1984) - (IRAVADIIDAE)
- gemmata, Myllita gemmata R. Tate, 1879 - (LASAEIDAE)
- gemmata, Mitra gemmata G.B. II Sowerby, 1874 - syn of: Atlantilux gemmata (G.B. II Sowerby, 1874) - (MITRIDAE)
- gemmata, Mitromorpha gemmata H.H. Suter, 1908 - (MITROMORPHIDAE)
- gemmata, Phyllidiopsis gemmata (A. Pruvot-Fol, 1957) - (PHYLLIDIIDAE)
- gemmata, Pterygioteuthis gemmata C. Chun, 1908 - (PYROTEUTHIDAE)
- gemmata, Septa gemmata L.A. Reeve, 1844 - syn of: Monoplex gemmatus (L.A. Reeve, 1844) - (RANELLIDAE)
- gemmata, Simulamerelina gemmata (A.W.B. Powell, 1927) - (RISSOIDAE)
- gemmata, Merelina gemmata A.W.B. Powell, 1927 - syn of: Simulamerelina gemmata (A.W.B. Powell, 1927) - (RISSOIDAE)
- gemmata, Manzonia gemmata A.W.B. Powell, 1927 - syn of: Simulamerelina gemmata (A.W.B. Powell, 1927) - (RISSOIDAE)
- gemmata, Calliobasis gemmata G.T. Poppe, S.P. Tagaro & P. Stahlschmidt, 2015 - (SEGUENZIIDAE)
- gemmata, Triphora gemmata H.M.D. de Blainville, 1828 - (TRIPHORIDAE)
- gemmata, Turbinella gemmata L.A. Reeve, 1847 - syn of: Peristernia gemmata (L.A. Reeve, 1847) - (TURBINELLIDAE)
- gemmata, Pleurotoma gemmata L.A. Reeve, 1843 - syn of: Gemmula hindsiana S.S. Berry, 1958 - (TURRIDAE)
- gemmata, Pleurotoma gemmata R.B. Hinds, 1843 - syn of: Gemmula hindsiana S.S. Berry, 1958 - (TURRIDAE)
- gemmata, Gemmula gemmata R.B. Hinds, 1843 - syn of: Gemmula hindsiana S.S. Berry, 1958 - (TURRIDAE)
- gemmata, Turritella gemmata (L.A. Reeve, 1849) - (TURRITELLIDAE)
- gemmata, Archimediella gemmata L.A. Reeve, 1849 - syn of: Turritella gemmata (L.A. Reeve, 1849) - (TURRITELLIDAE)
- gemmata, Gongylostoma gemmata (H.A. Pilsbry, 1927) - (UROCOPTIDAE)
- gemmata, Lyria gemmata R. Tate, 1889 † - (VOLUTIDAE) (FOSSIL)
- gemmata maudensis, Acanthopleura gemmata maudensis E.A. Ashby, 1928 - syn of: Acanthopleura gemmata (H.M.D. de Blainville, 1825) - (CHITONIDAE)
- gemmata queenslandica, Acanthopleura gemmata queenslandica E.A. Ashby, 1922 - syn of: Acanthopleura gemmata (H.M.D. de Blainville, 1825) - (CHITONIDAE)
- Gemmaterebra, Genus Gemmaterebra Cotton, 1952 (TEREBRIDAE)
- gemmatum, Aglaja gemmatum O.A.L. Mörch, 1863 - syn of: Navanax gemmatus (O.A.L. Mörch, 1863) - (AGLAJIDAE)
- gemmatum, Trigonostoma gemmatum T.A. Conrad, 1833 † - (CANCELLARIIDAE) (FOSSIL)
- gemmatum, Cerithium gemmatum R.B. Hinds, 1844 - (CERITHIIDAE)
- gemmatum, Bittium gemmatum R.B. Watson, 1881 - (CERITHIIDAE)
- gemmatum, Kosmoceras gemmatum B. Phillips, 1835 † - (KOSMOCERATIDAE) (FOSSIL)
- gemmatum, Monoplex gemmatum Auct. non L.A. Reeve, 1844 - syn of: Monoplex mundus Gould, 1849 - (RANELLIDAE)
- gemmatum, Phloioceras gemmatum (Mojsisovics, 1873 †) - (TAINOCERATIDAE) (FOSSIL)
- gemmatus, Navanax gemmatus (O.A.L. Mörch, 1863) - (AGLAJIDAE)
- gemmatus, Ammonites gemmatus Huppe, 1854 † - syn of: Grossouvrites gemmatus (Huppe, 1854 †) - (AMMONITIDA (unassigned)) (FOSSIL)
- gemmatus, Ammonites gemmatus B. Phillips, 1835 † - syn of: Kosmoceras gemmatum B. Phillips, 1835 † - (AMMONITIDA (unassigned)) (FOSSIL)
- gemmatus, Gemophos gemmatus (L.A. Reeve, 1846) - (BUCCINIDAE)
- gemmatus, Euchelus gemmatus (A.A. Gould, 1845) - (CHILODONTIDAE)
- gemmatus, Grossouvrites gemmatus (Huppe, 1854 †) - (KOSSMATICERATIDAE) (FOSSIL)
- gemmatus, Babelomurex gemmatus (T. Shikama, 1966) - (MURICIDAE)
- gemmatus, Latiaxis gemmatus T. Shikama, 1966 - syn of: Babelomurex gemmatus (T. Shikama, 1966) - (MURICIDAE)
- gemmatus, Nautilus gemmatus Mojsisovics, 1873 † - syn of: Phloioceras gemmatum (Mojsisovics, 1873 †) - (NAUTILIDAE) (FOSSIL)
- gemmatus, Monoplex gemmatus (L.A. Reeve, 1844) - (RANELLIDAE)
- gemmatus, Strophocheilus terrestris gemmatus J.G. Hidalgo, 1870 - (STROPHOCHEILIDAE)
- gemmatus, Anolcites gemmatus Tozer, 1994 † - (TRACHYCERATIDAE) (FOSSIL)
- gemmatus, Carswellena gemmatus (L.A. Reeve, 1848) - (TURBINIDAE)
- gemmatus grammatus, Ancistrolepis gemmatus grammatus W.H. Dall, 1907 - syn of: Ancistrolepis grammatus (W.H. Dall, 1907) - (BUCCINIDAE)
- gemmatus yamazakii, Ancistrolepis gemmatus yamazakii J.T. Kuroda, 1944 - syn of: Ancistrolepis grammatus yamazakii J.T. Kuroda, 1944 - (BUCCINIDAE)
- gemmavia, Eopleurotoma gemmavia † - (TURRIDAE) (FOSSIL)
- gemmea, Chaetopleura gemmea P.P. Carpenter in H.A. Pilsbry, 1892 - syn of: Chaetopleura gemma W.H. Dall, 1879 - (CHAETOPLEURIDAE)
- gemmea, Paracomitas gemmea (R. Murdoch, 1900 †) - (PSEUDOMELATOMIDAE) (FOSSIL)
- gemmea, Rissoina gemmea (C. Hedley, 1899) - (RISSOINIDAE)
- gemmea, Phosinella gemmea (C. Hedley, 1899) - syn of: Rissoina gemmea (C. Hedley, 1899) - (RISSOINIDAE)
- gemmegens, Teretriphora gemmegens (J.C. Verco, 1909) - (TRIPHORIDAE)
- gemmellari, Atrina gemmellari C. Maravigna, 1851 - syn of: Atrina fragilis (T. Pennant, 1777) - (PINNIDAE)
- gemmellari, Sassia gemmellari (Gregorio, 1880 †) - (RANELLIDAE) (FOSSIL)
- Gemmellaroceras, Genus Gemmellaroceras Hyatt , 1900 (POLYMORPHITIDAE) (FOSSIL)
- Gemmellarodus, Genus Gemmellarodus di Stefano, 1912 (MEGALODONTIDAE) (FOSSIL)
- gemmellaroi, Crimites gemmellaroi (Toumanskaya, 1931 †) - (ADRIANITIDAE) (FOSSIL)
- gemmellaroi, Celtites gemmellaroi Arthaber, 1911 † - syn of: Tozerites gemmellaroi (Arthaber, 1911 †) - (CELTITIDAE) (FOSSIL)
- gemmellaroi, Paracladiscites gemmellaroi Mojsisovics, 1902 † - (CLADISCITIDAE) (FOSSIL)
- gemmellaroi, Zittelia gemmellaroi C.A. von Zittel, 1873 † - (COLOMBELLINIDAE) (FOSSIL)
- gemmellaroi, Metaderoceras gemmellaroi (Levi, 1896 †) - (EODEROCERATIDAE) (FOSSIL)
- gemmellaroi, Allochiton gemmellaroi Fucini, 1912 † - (ISCHNOCHITONIDAE) (FOSSIL)
- gemmellaroi, Phaneroptyxis gemmellaroi Pcelincev, 1934 † - (ITIERIIDAE) (FOSSIL)
- gemmellaroi, Gonionotites gemmellaroi Diener, 1906 † - (JUVAVITIDAE) (FOSSIL)
- gemmellaroi, Stacheoceras gemmellaroi Miller, 1944 † - (NEOSTACHEOCERATIDAE) (FOSSIL)
- gemmellaroi, Radstockiceras gemmellaroi Pompeckj, 1906 † - (OXYNOTICERATIDAE) (FOSSIL)
- gemmellaroi, Gemmellaroceras gemmellaroi Geczy, 1976 † - (POLYMORPHITIDAE) (FOSSIL)
- gemmellaroi, Tozerites gemmellaroi (Arthaber, 1911 †) - (SAGECERATIDAE) (FOSSIL)
- gemmellaroi, Thalassoceras gemmellaroi Karpinsky, 1889 † - (THALASSOCERATIDAE) (FOSSIL)
- gemmellaroi, Trachoecus gemmellaroi E.A.L. Kittl, 1894 † - (TRACHOECIDAE) (FOSSIL)
- gemmellaroi, Discotropites gemmellaroi Kutassy 1933 † - (TROPITIDAE) (FOSSIL)
- gemmellaroi evolutum, Metaderoceras gemmellaroi evolutum (Fucini, 1924 †) - (EODEROCERATIDAE) (FOSSIL)
- gemmellaroi kondai, Metaderoceras gemmellaroi kondai Geczy, 1976 † - (EODEROCERATIDAE) (FOSSIL)
- Gemmellaroia, Genus Gemmellaroia Lyssenko, 1990 (HETEROSTROPHA (UNASSIGNED)) (FOSSIL)
- gemmelli, Solen gemmelli R. von Cosel, 1992 - (SOLENIDAE)
- gemmeus, Chlamys gemmeus L.A. Reeve, 1853 - syn of: Talochlamys gemmulata (L.A. Reeve, 1853) - (PECTINIDAE)
- gemmifera, Astartella gemmifera Termier & Termier, 1959 † - (ASTARTIDAE) (FOSSIL)
- gemmifera, Tylomelania gemmifera (P.B. Sarasin & K.F. Sarasin, 1897) - (PACHYCHILIDAE)
- gemmifera, Liamorpha gemmifera (P. Dautzenberg & H. Fischer, 1906) - (PYRAMIDELLIDAE)
- gemmifera, Pyrgulina gemmifera P. Dautzenberg & H. Fischer, 1906 - syn of: Liamorpha gemmifera (P. Dautzenberg & H. Fischer, 1906) - (PYRAMIDELLIDAE)
- gemmifera, Ranella gemmifera F.M. Euthyme, 1889 - (RANELLIDAE)
- gemmifera lepta, Ranella gemmifera lepta P. Bartsch, 1915 - syn of: Ranella gemmifera F.M. Euthyme, 1889 - (RANELLIDAE)
- gemmifera minor, Ranella gemmifera minor F.M. Euthyme, 1889 - syn of: Ranella gemmifera F.M. Euthyme, 1889 - (RANELLIDAE)
- gemmiferum, Granosolarium gemmiferum R. Bieler, 1993 - (ARCHITECTONICIDAE)
- gemmiferum, Buccinum gemmiferum F.M. Euthyme, 1889 - syn of: Ranella gemmifera F.M. Euthyme, 1889 - (BUCCINIDAE)
- gemmiferum, Ranella gemmiferum F.M. Euthyme, 1889 - syn of: Ranella gemmifera F.M. Euthyme, 1889 - (RANELLIDAE)
- gemmiparum, Coccodentalium gemmiparum (J.C. Melvill, 1909) - (DENTALIIDAE)
- Gemmocolus, Genus Gemmocolus Maxwell, 1992 (FASCIOLARIIDAE) (FOSSIL)
- Gemmoliva, Subgenus Belloliva (Gemmoliva) T. Iredale, 1924 (OLIVIDAE)
- gemmosa, Architectonica gemmosa G. Schmelz, 2001 † - (ARCHITECTONICIDAE) (FOSSIL)
- gemmosa, Nucleolaria nucleus gemmosa (G. Perry, 1811) - (CYPRAEIDAE)
- gemmosum, Calliostoma gemmosum (L.A. Reeve, 1842) - (CALLIOSTOMATIDAE)
- gemmosus, Trochus gemmosus L.A. Reeve, 1842 - syn of: Astele rubiginosa (A. Valenciennes, 1846) - (TROCHIDAE)
- gemmula, Vaceuchelus gemmula (W.H. Turton, 1932) - (CHILODONTIDAE)
- gemmula, Cuna gemmula W.H. Turton, 1932 - syn of: Cuna bartschi K.H. Barnard, 1964 - (CONDYLOCARDIIDAE)
- gemmula, Cypraea gemmula A.A. Gould, 1845 - syn of: Purpurcapsula exigua (J.E. Gray, 1831) - (CYPRAEIDAE)
- gemmula, Pseudozonaria gemmula H.C. Weinkauff, 1881 - syn of: Pseudozonaria arabicula (J.B.P.A. Lamarck, 1810) - (CYPRAEIDAE)
- gemmula, Donax gemmula J.P.E. Morrison, 1971 - (DONACIDAE)
- gemmula, Epitonium gemmula (W.H. Turton, 1932) - (EPITONIIDAE)
- gemmula, Lamprocystis gemmula (O.F. von Möllendorff, 1887) - (EUCONULIDAE)
- gemmula, Mangelia gemmula W.H. Turton, 1932 - (MANGELIIDAE)
- gemmula, Marginella gemmula A.R.J.B. Bavay in P. Dautzenberg, 1912 - (MARGINELLIDAE)
- gemmula, Helcion gemmula W.H. Turton - syn of: Helcion dunkeri (C.F.F. von Krauss, 1848) - (PATELLIDAE)
- gemmula, Pupoides gemmula (W.H. Benson, 1856) - (PUPILLIDAE)
- gemmula, Turbonilla gemmula E.A. Smith, 1904 - (PYRAMIDELLIDAE)
- gemmula, Rissoa gemmula P. Fischer in L. de Folin, 1869 - (RISSOIDAE)
- gemmula, Brookula gemmula (W.H. Turton, 1932) - (SEGUENZIOIDEA (UNASSIGNED))
- gemmula, Trivia gemmula A.A. Gould, 1845 - syn of: Purpurcapsula exigua (J.E. Gray, 1831) - (TRIVIIDAE)
- Gemmula, Genus Gemmula H.C. Weinkauff, 1875 (TURRIDAE)
- gemmulaeformis, Turricula gemmulaeformis (K.H.J. Thiele, 1925) - (CLAVATULIDAE)
- gemmulata, Pseudotorinia gemmulata (K.H.J. Thiele, 1925) - (ARCHITECTONICIDAE)
- gemmulata, Torinia gemmulata K.H.J. Thiele, 1925 - syn of: Pseudotorinia gemmulata (K.H.J. Thiele, 1925) - (ARCHITECTONICIDAE)
- gemmulata, Cancellaria gemmulata G.B. I Sowerby, 1832 - (CANCELLARIIDAE)
- gemmulata, Cardilia gemmulata A.A. Gould, 1861 - (CARDILIIDAE)
- gemmulata, Acanthophaedusa gemmulata H. Nordsieck, 2012 - (CLAUSILIIDAE)
- gemmulata, Austrotoma gemmulata Powell, 1942 † - (CONOIDEA (UNASSIGNED)) (FOSSIL)
- gemmulata, Natiria gemmulata Zhu, 1995 † - (CRASPEDOSTOMATIDAE) (FOSSIL)
- gemmulata, Pyramidelloides gemmulata W.H. Turton, 1932 - syn of: Pyramidelloides mirandus (A. Adams, 1861) - (EULIMIDAE)
- gemmulata, Diodora gemmulata L.A. Reeve, 1850 - syn of: Diodora minuta (J.B.P.A. Lamarck, 1822) - (FISSURELLIDAE)
- gemmulata, Macteola gemmulata G.P. Deshayes, 1863 - syn of: Macteola interrupta (L.A. Reeve, 1846) - (MANGELIIDAE)
- gemmulata, Mathilda gemmulata C.G. Semper, 1865 - (MATHILDIDAE)
- gemmulata, Purpura gemmulata J.B.P.A. Lamarck, 1816 - syn of: Mancinella alouina (P.F. Röding, 1798) - (MURICIDAE)
- gemmulata, Thais gemmulata J.B.P.A. Lamarck, 1816 - syn of: Mancinella alouina (P.F. Röding, 1798) - (MURICIDAE)
- gemmulata, Nerita gemmulata L.A. Reeve, 1857 - (NERITIDAE)
- gemmulata, Nuculana gemmulata (G.B. III Sowerby, 1904) - (NUCULANIDAE)
- gemmulata, Lembulus gemmulata G.B. III Sowerby, 1904 - syn of: Nuculana gemmulata (G.B. III Sowerby, 1904) - (NUCULANIDAE)
- gemmulata, Lamellinucula gemmulata T. Habe, 1953 - (NUCULIDAE)
- gemmulata, Homalogyra gemmulata W.H. Turton, 1932 - syn of: Orbitestella gemmulata (W.H. Turton, 1932) - (OMALOGYRIDAE)
- gemmulata, Orbitestella gemmulata (W.H. Turton, 1932) - (ORBITESTELLIDAE)
- gemmulata, Talochlamys gemmulata (L.A. Reeve, 1853) - (PECTINIDAE)
- gemmulata, Turbonilla gemmulata (E. Saurin, 1959) - (PYRAMIDELLIDAE)
- gemmulata, Hemilienardia gemmulata Wiedrick, 2017 - (RAPHITOMIDAE)
- gemmulata, Alvania gemmulata G. Seguenza, 1875 - syn of: Alvania lamellata P. Dautzenberg, 1889 - (RISSOIDAE)
- gemmulata, Rissoina gemmulata W.H. Turton, 1932 - syn of: Pyramidelloides mirandus (A. Adams, 1861) - (RISSOINIDAE)
- gemmulata, Minolia gemmulata J.T. Kuroda & T. Habe, 1971 - (SOLARIELLIDAE)
- gemmulata, Duplicaria gemmulata (L.C. Kiener, 1839) - (TEREBRIDAE)
- gemmulata, Terebra gemmulata L.C. Kiener, 1839 - syn of: Duplicaria gemmulata (L.C. Kiener, 1839) - (TEREBRIDAE)
- gemmulata, Trachydomia gemmulata Batten, 1979 † - (TRACHYSPIRIDAE) (FOSSIL)
- gemmulata, Inella gemmulata (A. Adams & L.A. Reeve, 1850) - (TRIPHORIDAE)
- gemmulata, Pleurotoma gemmulata G.P. Deshayes, 1863 - syn of: Macteola segesta cinctura C. Hedley, 1922 - (TURRIDAE)
- gemmulata, Colpospira gemmulata (R. Tate, 1893 †) - (TURRITELLIDAE) (FOSSIL)
- gemmulata suteri, Talochlamys gemmulata suteri (L.G. Hertlein, 1933) - (PECTINIDAE)
- Gemmulata-group, syn of: Genus Pseudotorinia F. Sacco, 1892 (ARCHITECTONICIDAE)
- gemmulatum, Spinifulgur gemmulatum E.J. Petuch, 1997 † - (BUSYCONIDAE) (FOSSIL)
- gemmulatum, Calliostoma gemmulatum P.P. Carpenter, 1864 - (CALLIOSTOMATIDAE)
- gemmulatum, Clypeomorus gemmulatum J.B. Hombron & C.H. Jacquinot, 1852 - syn of: Clypeomorus batillariaeformis T. Habe & S. Kosuge, 1966 - (CERITHIIDAE)
- gemmulatum, Ataxocerithium gemmulatum (L.H. Woolacott, 1957) - (NEWTONIELLIDAE)
- gemmulatus, Conus gemmulatus G.B. II Sowerby, 1870 - syn of: Turriconus acutangulus (J.B.P.A. Lamarck, 1810) - (CONIDAE)
- gemmulatus, Phos gemmulatus R.N. Kilburn, 2000 - syn of: Antillophos gemmulifer (R.N. Kilburn, 2000) - (NASSARIIDAE)
- gemmulatus, Nassarius gemmulatus J.B.P.A. Lamarck, 1822 - syn of: Nassarius conoidalis (G.P. Deshayes, 1832) - (NASSARIIDAE)
- gemmulatus, Cymatiella gemmulatus (R. Tate, 1888 †) - (RANELLIDAE) (FOSSIL)
- gemmulatus, Trochus gemmulatus R.A. Philippi, 1844 - syn of: Putzeysia wiseri (P. Calcara, 1842) - (TROCHIDAE)
- gemmulatus variegata, Nassarius gemmulatus variegata A. Adams, 1852 - syn of: Nassarius conoidalis (G.P. Deshayes, 1832) - (NASSARIIDAE)
- gemmulatus verrucosa, Nassarius gemmulatus verrucosa A. Adams, 1852 - syn of: Nassarius conoidalis (G.P. Deshayes, 1832) - (NASSARIIDAE)
- gemmulifer, Fusinus gemmulifer T. Kira, 1959 - (FASCIOLARIIDAE)
- gemmulifer, Antillophos gemmulifer (R.N. Kilburn, 2000) - (NASSARIIDAE)
- gemmulifer, Clanculus gemmulifer H.A. Pilsbry, 1901 - (TROCHIDAE)
- gemmulifer pallidus, Clanculus gemmulifer pallidus H.A. Pilsbry, 1903 - (TROCHIDAE)
- gemmulifera, Cardita gemmulifera R. Tate, 1892 - syn of: Purpurocardia amabilis (G.P. Deshayes, 1854) - (CARDITIDAE)
- gemmulifera, Retizafra gemmulifera (C. Hedley, 1907) - (COLUMBELLIDAE)
- gemmulifera, Mathilda gemmulifera J.T. Kuroda, 1958 - (MATHILDIDAE)
- gemmulifera, Morula gemmulifera S.D. Kaicher, 1980 - syn of: Morula echinata (L.A. Reeve, 1846) - (MURICIDAE)
- gemmulifera, Daphnella gemmulifera J.H. McLean & L.H. Poorman, 1971 - (RAPHITOMIDAE)
- gemmuliferum, Rhineoderma gemmuliferum (B. Phillips, 1836 †) - (PLATYCERATIDAE) (FOSSIL)
- gemmuliferus, Fusinus gemmuliferus T. Kira, 1959 - syn of: Fusinus gemmulifer T. Kira, 1959 - (FASCIOLARIIDAE)
- gemmuliferus, Nassarius gemmuliferus (A. Adams, 1852) - (NASSARIIDAE)
- gemmulina, Gemmula gemmulina (E.C. Von Martens, 1902) - (TURRIDAE)
- Gemmuloborsonia, Genus Gemmuloborsonia T. Shuto, 1989 (CLAVATULIDAE)
- gemmuloides, Heteroturris gemmuloides A.V. Sysoev, 1997 - (BORSONIIDAE)
- gemmuloides, Calliostoma marshalli gemmuloides (R.T. Lowe, 1835) - (CALLIOSTOMATIDAE)
- gemmuloides, Xenuroturris gemmuloides A.W.B. Powell, 1967 - (TURRIDAE)
- gemmulosa, Calliotropis gemmulosa (A. Adams, 1860) - (CALLIOTROPIDAE)
- gemmulosa, Cerithiopsis gemmulosa (C.B. Adams, 1850) - (CERITHIOPSIDAE)
- gemmulosa, Zetekia gemmulosa (C.B. Adams, 1852) - (COLUMBELLIDAE)
- gemmulosa, Nassa gemmulosa C.B. Adams, 1852 - syn of: Nassarius gemmulosus (C.B. Adams, 1852) - (NASSARIIDAE)
- gemmulosa, Chrysallida gemmulosa (C.B. Adams, 1850) - (PYRAMIDELLIDAE)
- gemmulosa, Gibbula gemmulosa A. Adams, 1860 - syn of: Calliotropis gemmulosa (A. Adams, 1860) - (TROCHIDAE)
- gemmulosa, Pleurotoma gemmulosa C.B. Adams, 1852 - syn of: Zetekia gemmulosa (C.B. Adams, 1852) - (TURRIDAE)
- gemmulosus, Nassarius gemmulosus (C.B. Adams, 1852) - (NASSARIIDAE)
- gemmunziae, Clathropsis gemmunziae Cecalupo & Perugia, 2017 - (CERITHIOPSIDAE)
- gemonensis, Aegopis gemonensis (A.E.J. Férussac, 1832) - (ZONITIDAE)
- gemonensis kusceri, Aegopis gemonensis kusceri (A.J. Wagner, 1912) - (ZONITIDAE)
- gemonia, Pristipagia gemonia (T. Iredale, 1936) - (TELLINIDAE)
- gemonia, Pistris gemonia T. Iredale, 1936 - syn of: Pristipagia gemonia (T. Iredale, 1936) - (TELLINIDAE)
- Gemophos, Genus Gemophos A.A. Olsson & A. Harbison, 1953 (BUCCINIDAE)
- Gena, syn of: Genus Stomatella J.B.P.A. Lamarck, 1816 (TROCHIDAE)
- Genaxinus, Genus Genaxinus Iredale, 1930 (THYASIRIDAE) (FOSSIL)
- Genaxinus, syn of: Genus Axinulus A.E. Verrill & K.J. Bush, 1898 (THYASIRIDAE)
- genciana, Runcina genciana J.A. Ortea & Nicieza, 1999 - (RUNCINIDAE)
- gendalli, Tristichotrochus gendalli (B.A. Marshall, 1979) - (CALLIOSTOMATIDAE)
- gendinganense, Canarium gendinganense (K. Martin, 1899 †) - (STROMBIDAE) (FOSSIL)
- gendinganensis, Scapharca gendinganensis Martin, 1910 † - (ARCIDAE) (FOSSIL)
- gendinganensis, Proclava gendinganensis (Martin, 1906 †) - (CERITHIIDAE) (FOSSIL)
- gendinganensis, Afrozoila gendinganensis (K. Martin, 1899 †) - (CYPRAEIDAE) (FOSSIL)
- gendinganensis, Hindsia gendinganensis K. Martin, 1899 - syn of: Nassaria acuminata (L.A. Reeve, 1844) - (NASSARIIDAE)
- gendinganensis, Pleurotoma gendinganensis K. Martin, 1895 - syn of: Lophiotoma indica (P.F. Röding, 1798) - (TURRIDAE)
- gendryi, Nassarius gendryi F. Van Dingenen, L. Ceulemans & al., 2015 † - (NASSARIIDAE) (FOSSIL)
- genecoani, Plesiocystiscus genecoani J. Espinosa & J.A. Ortea, 2000 - (CYSTISCIDAE)
- genecoani, Halistylus genecoani J.H. McLean, 1984 - (TROCHIDAE)
- genei, Loxacypraea genei (O.G. Michelotti, 1847 †) - (CYPRAEIDAE) (FOSSIL)
- genei, Lomanotus genei J.B. Vérany, 1846 - (LOMANOTIDAE)
- genei, Ceratostoma genei L.M.D. Bellardi & O.G. Michelotti, 1841 † - syn of: Kestocenebra curvicosta (J.P.S. Grateloup, 1840 †) - (MURICIDAE) (FOSSIL)
- genei, Dosinia genei C.M. Tapparone-Canefri, 1874 - syn of: Dosinia concentrica (I. von Born, 1778) - (VENERIDAE)
- genei, Callistotapes vetulus genei (O.G. Michelotti, 1839 †) - (VENERIDAE) (FOSSIL)
- generalis, Calocochlia generalis L. Pfeiffer, 1854 - (BRADYBAENIDAE)
- generalis, Strategoconus generalis (C. Linnaeus, 1767) - (CONIDAE)
- generalis, Ambercyclus generalis (Münster, 1844 †) - (EUCYCLIDAE) (FOSSIL)
- generalis pallida, Strategoconus generalis pallida P. Dautzenberg, 1937 - syn of: Strategoconus generalis (C. Linnaeus, 1767) - (CONIDAE)
- generalis regenfussi, Conus generalis regenfussi P. Dautzenberg, 1937 - syn of: Strategoconus generalis (C. Linnaeus, 1767) - (CONIDAE)
- generalis subunicolor, Conus generalis subunicolor P. Dautzenberg, 1937 - syn of: Strategoconus generalis (C. Linnaeus, 1767) - (CONIDAE)
- generellii, Codinella generellii (Stoppani, 1858 †) - (STUORELLIDAE) (FOSSIL)
- generos, Callistochiton generos (T. Iredale & A.F.B. Hull, 1925) - (CALLISTOPLACIDAE)
- generosa, Panopea generosa A.A. Gould, 1850 - (HIATELLIDAE)
- generosa, Lima generosa Cragin, 1893 † - syn of: Chlamys generosus (Cragin, 1893 †) - (LIMIDAE) (FOSSIL)
- generosa, Clinura generosa (J. Marwick, 1931 †) - (RAPHITOMIDAE) (FOSSIL)
- generosa globosa, Panopea generosa globosa W.H. Dall, 1898 - syn of: Panopea globosa W.H. Dall, 1898 - (HIATELLIDAE)
- generosa solida, Panopea generosa solida W.H. Dall, 1898 - (HIATELLIDAE)
- generosa taeniata, Panopea generosa taeniata W.H. Dall, 1918 - syn of: Panopea globosa W.H. Dall, 1898 - (HIATELLIDAE)
- generosensis, Chondrina generosensis H. Nordsieck, 1962 - (CHONDRINIDAE)
- generosus, Cyphonochelus generosus T. Iredale, 1936 - syn of: Siphonochelus syringianus (C. Hedley, 1903) - (MURICIDAE)
- generosus, Chlamys generosus (Cragin, 1893 †) - (PECTINIDAE) (FOSSIL)
- generosus, Lamellidens generosus (A.A. Gould, 1847) - (UNIONIDAE)
- generosus angustior, Unio generosus angustior S.C.T. Hanley & W. Theobald, 1876 - syn of: Lamellidens generosus (A.A. Gould, 1847) - (UNIONIDAE)
- genesii, Pupilla genesii P.V. Gredler, 1856 - syn of: Isthmia modesta (T. Say, 1824) - (PUPILLIDAE)
- genesii, Vertigo genesii P.V. Gredler, 1856 - (VERTIGINIDAE)
- genethlia, Diplodonta genethlia J.C. Melvill, 1898 - (UNGULINIDAE)
- genetivum, Xanthomelon genetivum T. Iredale, 1938 - syn of: Xanthomelon spheroidea (E.J. Le Guillou, 1845) - (CAMAENIDAE)
- genetivum lubricum, Xanthomelon genetivum lubricum T. Iredale, 1938 - syn of: Xanthomelon spheroidea (E.J. Le Guillou, 1845) - (CAMAENIDAE)
- genevensis, Murex genevensis Pictet & C. Roux, 1849 † - syn of: Cretaceomurex genevensis (Pictet & C. Roux, 1849 †) - (MURICIDAE) (FOSSIL)
- genevensis, Cretaceomurex genevensis (Pictet & C. Roux, 1849 †) - (SPINILOMATIDAE) (FOSSIL)
- genevievae, Diozoptyxis genevievae Dzhalilov, 1977 † - (DIOZOPTYXIDAE) (FOSSIL)
- genevievae, Fissurellidea genevievae P. Dautzenberg, 1929 - (FISSURELLIDAE)
- genevievensis, Naticopsis genevievensis (F.B. Meek & A.H. Worthen, 1867 †) - (DELPHINULOPSIDAE) (FOSSIL)
- genezarethanus, Unio genezarethanus É.A.A. Locard, 1883 - syn of: Unio terminalis J.R. Bourguignat, 1852 - (UNIONIDAE)
- genezarethensis, Cecilioides genezarethensis L. Forcart, 1981 - (FERUSSACIIDAE)
- genezerethana, Cristataria genezerethana (H.B. Tristram, 1865) - (CLAUSILIIDAE)
- genicularis, Oecotraustes genicularis L. Waagen, 1869 † - (OPPELIIDAE) (FOSSIL)
- geniculata, Acrilloscala geniculata (G.B. Brocchi, 1814 †) - (EPITONIIDAE) (FOSSIL)
- geniculata, Scalaria geniculata G.B. Brocchi, 1814 † - (EPITONIIDAE) (FOSSIL)
- geniculata, Amaea geniculata (G.B. Brocchi, 1814 †) - (EPITONIIDAE) (FOSSIL)
- geniculata, Acrilloscala geniculata Auct. non G.B. Brocchi, 1814 - syn of: Acrilloscala lamyi (M.E.A. de Boury, 1909) - (EPITONIIDAE)
- geniculata, Melanopsis geniculata Š. Brusina, 1874 † - (MELANOPSIDAE) (FOSSIL)
- geniculata, Hijitrigonia geniculata Kobayashi & Mori 1955 † - (MYOPHORELLIDAE) (FOSSIL)
- geniculata, Nassa geniculata A. Adams, 1852 - syn of: Nassarius cinctellus (A.A. Gould, 1850) - (NASSARIIDAE)
- geniculata, Lithasia geniculata (S.S. Haldeman, 1840) - (PLEUROCERIDAE)
- geniculata enodata, Melanopsis geniculata enodata Š. Brusina, 1897 † - syn of: Melanopsis enodata Š. Brusina, 1897 † - (MELANOPSIDAE) (FOSSIL)
- geniculata fuliginosa, Lithasia geniculata fuliginosa I. Lea, 1841 - (PLEUROCERIDAE)
- geniculata pinguis, Lithasia geniculata pinguis I. Lea, 1852 - (PLEUROCERIDAE)
- geniculata venusta, Lithasia geniculata venusta I. Lea, 1841 - (PLEUROCERIDAE)
- geniculatum, Lavaloceras geniculatum Flower, 1952 † - (WESTONOCERATIDAE) (FOSSIL)
- geniculatus, Deshayesites geniculatus Casey † - (DESHAYESITIDAE) (FOSSIL)
- geniculatus, Gyraulus geniculatus (C.L.F. von Sandberger, 1875) - (PLANORBIDAE)
- geniculiforme, Campeloma geniculiforme H.A. Pilsbry, 1916 - (VIVIPARIDAE)
- geniculosa, Galeodea geniculosa J. Marwick, 1942 † - (CASSIDAE) (FOSSIL)
- geniculosa, Altispecula geniculosa (C. Hedley, 1911) - (NEWTONIELLIDAE)
- geniculosus, Cerithiopsis geniculosus C. Hedley, 1911 - syn of: Altispecula geniculosa (C. Hedley, 1911) - (CERITHIOPSIDAE)
- geniculum, Campeloma geniculum T.A. Conrad, 1834 - (VIVIPARIDAE)
- geniculus, Priscofusus geniculus (T.A. Conrad, 1849 †) - (FASCIOLARIIDAE) (FOSSIL)
- genilda, Spirotropis genilda (W.H. Dall, 1908) - (DRILLIIDAE)
- genilda, Mangilia genilda W.H. Dall, 1908 - syn of: Spirotropis genilda (W.H. Dall, 1908) - (MANGELIIDAE)
- genilda, Turbonilla genilda W.H. Dall & P. Bartsch, 1909 - (PYRAMIDELLIDAE)
- genithecata, Elsothera genithecata J. Stanisic, 1990 - (CHAROPIDAE)
- genitiva, Strophiops genitiva C.J. Maynard & W.F. Clapp, 1920 - (CERIONIDAE)
- genitiva, Coronia genitiva (T.L. Casey, 1904 †) - (TURRIDAE) (FOSSIL)
- Genitoconia, Genus Genitoconia L. Salvini-Plawιn, 1967 (GYMNOMENIIDAE)
- Genkaimurex, Genus Genkaimurex J.T. Kuroda, 1953 (MURICIDAE)
- Gennaeosinum, Genus Gennaeosinum T. Iredale, 1929 (NATICIDAE)
- gennarii, Tacheocampylaea gennarii M. Paulucci, 1882 - syn of: Tacheocampylaea carotii M. Paulucci, 1882 - (HELICIDAE)
- gennesi, Clypeomorus gennesi H. Fischer & L. Vignal, 1901 - syn of: Clypeomorus petrosa isselii (A. Pagenstecher, 1877) - (CERITHIIDAE)
- gennesi, Marginella gennesi H. Fischer, 1901 - (MARGINELLIDAE)
- gennevauxi, Filholia gennevauxi (Roman, 1924) † - (FILHOLIIDAE) (FOSSIL)
- genoanus, Conus genoanus C. Linnaeus, 1758 - syn of: Genuanoconus genuanus (C. Linnaeus, 1758) - (CONIDAE)
- Genota, Genus Genota H. Adams & A. Adams, 1853 (BORSONIIDAE)
- genotae, Genotina genotae J.L. Vera-Peláez, 2004 - (MANGELIIDAE)
- Genotia, syn of: Genus Genota H. Adams & A. Adams, 1853 (BORSONIIDAE)
- Genotina, Genus Genotina J.L. Vera-Pelαez, 2004 (MANGELIIDAE)
- genouillyi, Chrysallida genouillyi E. Saurin, 1962 - (PYRAMIDELLIDAE)
- genovae, Cuthona genovae (C.H. O'Donoghue, 1929) - (FIONIDAE)
- gentatuana, Belalora gentatuana (S. Nomura & H. Niino, 1940) - (MANGELIIDAE)
- genthii, Unio genthii I. Lea, 1857 - syn of: Villosa constricta (T.A. Conrad, 1838) - (UNIONIDAE)
- genticus, Fusinus genticus (T. Iredale, 1936) - (FASCIOLARIIDAE)
- genticus, Fusinus genticus T. Iredale, 1936 - syn of: Fusinus genticus (T. Iredale, 1936) - (FASCIOLARIIDAE)
- gentii, Epiceltites gentii Arthaber, 1911 † - (COLUMBITIDAE) (FOSSIL)
- gentile, Cerithium gentile C.É. Bayle, 1880 - syn of: Cerithium zonatum (W. Wood, 1828) - (CERITHIIDAE)
- gentile, Extropharciceras gentile Bockwinkel, Becker & Ebbighausen, 2015 † - (PHARCICERATIDAE) (FOSSIL)
- gentilei, Renea gentilei C. Pollonera, 1889 - (ACICULIDAE)
- gentilei, Helix gentilei C. Pollonera, 1890 - syn of: Cingulifera cingulatum (S.E. Studer, 1820) - (HELICIDAE)
- gentili, Anodontia gentili A.E.M. Cossmann, 1904 † - (LUCINIDAE) (FOSSIL)
- gentiliana, Corbicula gentiliana P.M. Heude, 1887 - syn of: Corbicula fluminea (O.F. Müller, 1774) - (CYRENIDAE)
- gentilii, Hoplitocrioceras gentilii Giovine, 1950 † - (NEOCOMITIDAE) (FOSSIL)
- gentilii, Rasatomaria gentilii Pieroni & A. Nützel, 2014 † - (PLEUROTOMARIIDAE) (FOSSIL)
- gentilis, Amastra conica gentilis C.M. Cooke, 1917 - (AMASTRIDAE)
- gentilis, Conus gentilis P.F. Röding, 1798 - syn of: Darioconus pennaceus (I. von Born, 1778) - (CONIDAE)
- gentilis, Zhgentiana gentilis (K.E.I. von Eichwald, 1851 †) - (KELLIELLIDAE) (FOSSIL)
- gentilis, Ferrissia gentilis R.M. Lanzer, 1991 - (PLANORBIDAE)
- gentilis, Eopleurotoma gentilis (Sowerby in G. Dixon, 1850 †) - (TURRIDAE) (FOSSIL)
- gentilis, Unio gentilis P. Hesse, 1911 - syn of: Unio pictorum (C. Linnaeus, 1758) - (UNIONIDAE)
- gentilomiana, Eulima gentilomiana A. Issel, 1869 - syn of: Eulima gentiluomiana A. Issel, 1869 - (EULIMIDAE)
- gentiluomiana, Eulima gentiluomiana A. Issel, 1869 - (EULIMIDAE)
- gentilus, Fusinus gentilus (T. Iredale, 1936) - syn of: Fusinus genticus (T. Iredale, 1936) - (FASCIOLARIIDAE)
- gentoni, Calycoceras gentoni (Brongnart, 1822 †) - (ACANTHOCERATIDAE) (FOSSIL)
- gentoni, Gentoniceras gentoni (A. Brongniart, 1822 †) - (ACANTHOCERATIDAE) (FOSSIL)
- gentoni, Chlamys gentoni (C.F. Fontannes †) - (PECTINIDAE) (FOSSIL)
- Gentoniceras, Subgenus Calycoceras (Gentoniceras) Thomel, 1972 (ACANTHOCERATIDAE) (FOSSIL)
- genuana, Natica genuana L.A. Reeve, 1855 - syn of: Tectonatica tecta (H.E. Anton, 1838) - (NATICIDAE)
- genuana, Nerita genuana L.A. Reeve, 1855 - syn of: Nerita funiculata K.T. Menke, 1851 - (NERITIDAE)
- Genuanoconus, Genus Genuanoconus J.K. Tucker & M.J. Tenorio, 2009 (CONIDAE)
- genuanus, Genuanoconus genuanus (C. Linnaeus, 1758) - (CONIDAE)
- genuanus foscaclaudiae, Genuanoconus genuanus foscaclaudiae A. Assi, 2010 - (CONIDAE)
- genuanus papilio, Conus genuanus papilio C. Linnaeus, 1767 - syn of: Genuanoconus genuanus (C. Linnaeus, 1758) - (CONIDAE)
- Genuclymenia, Genus Genuclymenia Wedekind , 1908 (CYMACLYMENIIDAE) (FOSSIL)
- genuensis, Cernuella genuensis C. Pollonera, 1893 - syn of: Cernuella virgata (E.M. Da Costa, 1778) - (HYGROMIIDAE)
- genuflecta, Lopha genuflecta Arkell, 1933 † - (OSTREIDAE) (FOSSIL)
- genuflexus, Pararcestes genuflexus Mojsisovics, 1875 † - (ARCESTIDAE) (FOSSIL)
- genuiflexum, Grimsbyoceras genuiflexum Foerste, 1934 † - (ACLEISTOCERATIDAE) (FOSSIL)
- genuina, Margarites genuina A.T. von Middendorff, 1849 - syn of: Margarites costalis (A.A. Gould, 1841) - (MARGARITIDAE)
- genuinum, Tritonium genuinum A.T. von Middendorff, 1849 - syn of: Buccinum cyaneum J.G. Bruguière, 1792 - (BUCCINIDAE)
- genuinus, Conus genuinus P.F. Röding, 1798 - syn of: Miliariconus taeniatus (C.H. Hwass in J.G. Bruguière, 1792) - (CONIDAE)
- genulabris, Rhynchotrochus genulabris (O.F. von Möllendorff, 1895) - (CAMAENIDAE)
- genulobata, Siekluckia genulobata (Sobolew, 1914 †) - (CYMACLYMENIIDAE) (FOSSIL)
- genulobatum, Tornoceras genulobatum Sobolew, 1914 † - syn of: Protornoceras planilobum Sobolew, 1914 † - (TORNOCERATIDAE) (FOSSIL)
- genulobatum planum, Tornoceras genulobatum planum Sobolew, 1914 † - syn of: Protornoceras planilobum Sobolew, 1914 † - (TORNOCERATIDAE) (FOSSIL)
- genundewa, Acanthoclymenia genundewa (A.H. Clarke, 1898 †) - (ACANTHOCLYMENIIDAE) (FOSSIL)
- genundewa, Beloceras genundewa (A.H. Clarke, 1879 †) - (BELOCERATIDAE) (FOSSIL)
- genundewa, Gephyroceras genundewa A.H. Clarke, 1879 † - syn of: Beloceras genundewa (A.H. Clarke, 1879 †) - (GEPHUROCERATIDAE) (FOSSIL)
- genundewa, Glyptotomaria genundewa (A.H. Clarke, 1904 †) - (GOSSELETINIDAE) (FOSSIL)
- genundewa, Pleurotomaria genundewa A.H. Clarke, 1904 † - syn of: Glyptotomaria genundewa (A.H. Clarke, 1904 †) - (PLEUROTOMARIIDAE) (FOSSIL)
- Genus, Genus Genus Beyrich, 1845 (CARDIIDAE) (FOSSIL)
- Genuspira, Genus Genuspira Tyler , 1965 (GOSSELETINIDAE) (FOSSIL)
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