- hasegawai, Coronadoa hasegawai D.L. Geiger & T. Sasaki, 2009 - (SCISSURELLIDAE)
- Haselburgites, Genus Haselburgites Buckman, 1920 † (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- hasemani, Diplodon hasemani A.E. Ortmann, 1921 - syn of: Rhipidodonta hylaea (A.V.M.D. D'Orbigny, 1835) - (HYRIIDAE)
- hasemani, Anodontites hasemani A.E. Ortmann, 1921 - syn of: Anodontites trigona (J.B. von Spix & J.A. Wagner, 1827) - (MYCETOPODIDAE)
- hashimoto, Geloina hashimoto S. Kanno, 1978 † - (CYRENIDAE) (FOSSIL)
- hasibuani, Plesiotrochus hasibuani S. Reich & Wesselingh, 2014 † - (PLESIOTROCHIDAE) (FOSSIL)
- hasimotoi, Turbonilla hasimotoi S. Nomura, 1937 - (PYRAMIDELLIDAE)
- haskelli, Purpurocardia haskelli (Fleming, 1950 †) - (CARDITIDAE) (FOSSIL)
- hasletti, Solenosteira hasletti Anderson, 1929 † - syn of: Solenosteira falconensis N.E. Weisbord, 1929 † - (BUCCINIDAE) (FOSSIL)
- hasletti, Lutraria hasletti F.M. Anderson, 1929 - syn of: Raeta undulata (A.A. Gould, 1851) - (MACTRIDAE)
- hassani, Ptychocerithium hassani Abbass, 1967 † - (CERITHIIDAE) (FOSSIL)
- hassani, Torquesia hassani Abbass, 1962 † - (TURRITELLIDAE) (FOSSIL)
- hassanica, Pseudopotomida hassanica I.M. Moskvicheva & Y.I. Starobogatov, 1973 - syn of: Inversidens pantoensis (M. von Neumayr, 1899) - (UNIONIDAE)
- hassanicus, Acroloxus hassanicus N.D. Kruglov & Y.I. Starobogatov, 1991 - (ACROLOXIDAE)
- hasseltii, Dolabella hasseltii A.E.J. Férussac - syn of: Dolabella auricularia (J. Lightfoot, 1786) - (APLYSIIDAE)
- hassenensis, Thaumatoptyx hassenensis (J.T. Kuroda, 1941) - (CLAUSILIIDAE)
- hassiaca, Chondrina hassiaca L. Pfeiffer, 1841 - syn of: Chondrina avenacea (J.G. Bruguière, 1792) - (CHONDRINIDAE)
- hassiaca, Triptychia hassiaca (O. Böttger, 1877 †) - (FILHOLIIDAE) (FOSSIL)
- hassiaca, Melanopsis hassiaca C.L.F. von Sandberger, 1873 † - (MELANOPSIDAE) (FOSSIL)
- hassiaca, Neritina hassiaca W.A. Wenz, 1919 † - syn of: Neritina subangularis (C.L.F. von Sandberger, 1860 †) - (NERITIDAE) (FOSSIL)
- hassiacus, Palaeomastus hassiacus (W.A. Wenz, 1919 †) - (ENIDAE) (FOSSIL)
- hassiacus, Napaeus hassiacus W.A. Wenz, 1919 † - syn of: Palaeomastus hassiacus (W.A. Wenz, 1919 †) - (ENIDAE) (FOSSIL)
- hassiae, Unio hassiae F. Haas, 1908 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- hassichebbiense, Plagiostomoceras hassichebbiense Klug, Kroeger & al., 2008 † - (SPHAERORTHOCERATIDAE) (FOSSIL)
- hassler, Calliostoma hassler W.J. Clench & C.G. Aguayo, 1939 - (CALLIOSTOMATIDAE)
- hassoni, Lobotornoceras hassoni House, 1978 † - (TORNOCERATIDAE) (FOSSIL)
- hasta, Ancillista hasta (E.C. Von Martens, 1902) - (ANCILLARIIDAE)
- hasta, Cameroceras hasta I. Balashov, 1962 † - syn of: Rossicoceras hasta (I. Balashov, 1962 †) - (ENDOCERATIDAE) (FOSSIL)
- hasta, Heilprinia hasta E.J. Petuch, 1994 † - (FASCIOLARIIDAE) (FOSSIL)
- hasta, Koloonella hasta (C.F. Laseron, 1951) - (MURCHISONELLIDAE)
- hasta, Dissona hasta C.N. Cate & M. Azuma in C.N. Cate, 1973 - syn of: Pellasimnia improcera (M. Azuma & C.N. Cate, 1971) - (OVULIDAE)
- hasta, Homoctenowakia hasta Alberti, 1997 † - (PARANOWAKIIDAE) (FOSSIL)
- hasta, Rossicoceras hasta (I. Balashov, 1962 †) - (PROTEROCAMEROCERATIDAE) (FOSSIL)
- hastarius, Plicifusus hastarius R. Tiba, 1980 - (BUCCINIDAE)
- hastasia, Lithophaga hastasia A.A. Olsson, 1961 - (MYTILIDAE)
- hastata, Anoptychia hastata J. Szabo, 1983 † - (ANOPTYCHIIDAE) (FOSSIL)
- hastata, Belemnopsis hastata (H.M.D. de Blainville, 1808 †) - (BELEMNOPSEIDAE) (FOSSIL)
- hastata, Mitrella hastata M. Lussi, 2002 - (COLUMBELLIDAE)
- hastata, Styliola hastata Meyer, 1886 † - syn of: Creseis spina A.E. Reuss, 1867 † - (CRESEIDAE) (FOSSIL)
- hastata, Melanella hastata (G.B. I Sowerby, 1834) - (EULIMIDAE)
- hastata, Eulima hastata (C.B. Adams, 1864) - (EULIMIDAE)
- hastata, Melanopsis hastata M. von Neumayr, 1875 † - (MELANOPSIDAE) (FOSSIL)
- hastata, Mitra hastata G.B. II Sowerby, 1874 - syn of: Vexillum castum (H. Adams, 1872) - (MITRIDAE)
- hastata, Semimodiola hastata (G.P. Deshayes, 1830 †) - (MYTILIDAE) (FOSSIL)
- hastata, Chlamys hastata (G.B. II Sowerby, 1842) - (PECTINIDAE)
- hastata, Chlamys hastata I.M. Oldroyd, 1920 - syn of: Chlamys hastata pudgetensis I.M. Oldroyd, 1920 - (PECTINIDAE)
- hastata, Pleurocera uncialis hastata J.G. Anthony, 1854 - (PLEUROCERIDAE)
- hastata, Pyramidella hastata (C.B. Adams, 1854) - (PYRAMIDELLIDAE)
- hastata, Hastula hastata (J.F. Gmelin, 1791) - (TEREBRIDAE)
- hastata, Terebra hastata J.F. Gmelin, 1791 - syn of: Hastula hastata (J.F. Gmelin, 1791) - (TEREBRIDAE)
- hastata, Remnita hastata N.F. Sohl, 1964 † - (TURRIDAE) (FOSSIL)
- hastata hericius, Chlamys hastata hericius (A.A. Gould, 1850) - (PECTINIDAE)
- hastata pudgetensis, Chlamys hastata pudgetensis I.M. Oldroyd, 1920 - (PECTINIDAE)
- hastatum, Vexillum hastatum (D.L.G. Karsten, 1849 †) - (COSTELLARIIDAE) (FOSSIL)
- hastatum, Eoderoceras hastatum (A.T. Young & Bird, 1828 †) - (EODEROCERATIDAE) (FOSSIL)
- hastatum, Hastula hastatum J.F. Gmelin, 1791 - syn of: Hastula hastata (J.F. Gmelin, 1791) - (TEREBRIDAE)
- hastatus, Belemnites hastatus Denys de Montfort , 1808 † - syn of: Hibolithes hastatus (Denys de Montfort , 1808 †) - (BELEMNITELLIDAE) (FOSSIL)
- hastatus, Hibolites hastatus (P.D. Montfort, 1808 †) - (BELEMNOPSEIDAE) (FOSSIL)
- hastatus, Somareoides hastatus (Skwarko, 1967 †) - (KALENTERIDAE) (FOSSIL)
- hastatus, Hibolithes hastatus (Denys de Montfort , 1808 †) - (MESOHIBOLITHIDAE) (FOSSIL)
- hastiformis, Trachyteuthis hastiformis (Rüppel, 1828 †) - (TRACHYTEUTHIDIDAE) (FOSSIL)
- hastile, Helicostyla hastile Böhm, 1895 † - syn of: Euthystylus hastile (Böhm, 1895 †) - (BRADYBAENIDAE) (FOSSIL)
- hastile, Euthystylus hastile (Böhm, 1895 †) - (EULIMIDAE) (FOSSIL)
- hastilis, Lenticoceltites hastilis Qin, 1986 † - (ANDERSSONOCERATIDAE) (FOSSIL)
- hastilis, Antillophos hastilis K. Fraussen & G.T. Poppe, 2005 - (NASSARIIDAE)
- hastingsii, Pecten hastingsii J.C. Melvill, 1888 - syn of: Cryptopecten nux (L.A. Reeve, 1853) - (PECTINIDAE)
- Hastites, Genus Hastites Schlotheim, 1820 † (HASTITIDAE) (FOSSIL)
- HASTITIDAE Naef, 1922 † - Family (CEPHALOPODA-COLEOIDEA [Subclass]-BELEMNITIDA [Order]) (FOSSIL)
- hastula, Chiroteuthoides hastula S.S. Berry, 1920 - (CHIROTEUTHIDAE)
- hastula, Notocytharella hastula H.A. Pilsbry & H.N. Lowe, 1932 - syn of: Notocytharella striosa (C.B. Adams, 1852) - (MANGELIIDAE)
- hastula, Aspella hastula (L.A. Reeve, 1844) - (MURICIDAE)
- hastula, Babella hastula E. Saurin, 1962 - (PYRAMIDELLIDAE)
- hastula, Ranella hastula L.A. Reeve, 1844 - syn of: Aspella hastula (L.A. Reeve, 1844) - (RANELLIDAE)
- Hastula, Genus Hastula H. Adams & A. Adams, 1853 (TEREBRIDAE)
- hastula, Stenomelania hastula (I. Lea, 1850) - (THIARIDAE)
- hastula, Gemmula hastula (L.A. Reeve, 1843) - (TURRIDAE)
- hastula, Turritella hastula L.A. Reeve, 1849 - (TURRITELLIDAE)
- Hastulina, syn of: Genus Hastula H. Adams & A. Adams, 1853 (TEREBRIDAE)
- Hastulopsis, Genus Hastulopsis K. Oyama, 1961 (TEREBRIDAE)
- hastulus, Enixotrophon hastulus (B.A. Marshall & R. Houart, 2011) - (MURICIDAE)
- haswelli, Filodrillia haswelli (C. Hedley, 1907) - (BORSONIIDAE)
- haswelli, Microsveltia haswelli (T.A. Garrard, 1975) - (CANCELLARIIDAE)
- haswelli, Volvarina haswelli (C.F. Laseron, 1948) - (MARGINELLIDAE)
- haswelli, Marginella haswelli C.F. Laseron, 1948 - syn of: Volvarina haswelli (C.F. Laseron, 1948) - (MARGINELLIDAE)
- Haswellia, Genus Haswellia Lamont, 1978 † (EUOMPHALIDAE) (FOSSIL)
- haszprunari, Muellerpalia haszprunari T.A. Neubauer, M. Harzhauser, A. Kroh, E. Georgopoulou & O. Mandic, - (HYDROBIIDAE) (FOSSIL)
- haszprunari octonaria, Muellerpalia haszprunari octonaria (Š. Brusina, 1902 †) - (HYDROBIIDAE) (FOSSIL)
- haszprunari unicincta, Muellerpalia haszprunari unicincta (Lörenthey, 1906 †) - (HYDROBIIDAE) (FOSSIL)
- Haszprunariella, Genus Haszprunariella Kiel & Bandel, 2001 (MISURINELLIDAE) (FOSSIL)
- hatae, Silenticeras hatae McLearn, 1930 † - (TRACHYCERATIDAE) (FOSSIL)
- hataei, Anomia hataei Tashiro, 1976 † - (ANOMIIDAE) (FOSSIL)
- hatagica, Kugitangia hatagica A.A. Schileyko, Pazilov & Abdulazizova, 2017 - (BRADYBAENIDAE)
- hatai, Boninena hatai T. Habe, 1973 - (ENIDAE)
- hataiana, Tornatellinops hataiana (H.A. Pilsbry & C.M. Cooke, 1915) - (ACHATINELLIDAE)
- hataianus, Pyrgiscus hataianus (S. Nomura, 1937) - (PYRAMIDELLIDAE)
- Hataiarca, Subgenus Anadara (Hataiarca) H. Noda, 1966 (ARCIDAE)
- Hataiella, Genus Hataiella Kotaka , 1959 † (TURRITELLIDAE) (FOSSIL)
- hataii, Aviculopecten hataii Murata, 1964 † - (AVICULOPECTINIDAE) (FOSSIL)
- hataii, Calliotropis hataii H.A. Rehder & H.S. Ladd, 1973 - (CALLIOTROPIDAE)
- hataii, Serripes hataii H. Noda, 1962 † - (CARDIIDAE) (FOSSIL)
- hataii, Ciliatocardium hataii (I. Hayasaka, 1956 †) - (CARDIIDAE) (FOSSIL)
- hataii, Emarginula hataii T. Habe, 1953 - (FISSURELLIDAE)
- hataii, Leptochondria hataii Murata, 1973 † - (LEIOPECTINIDAE) (FOSSIL)
- hataii, Hippochaeta hataii H. Noda & Furuichi, 1972 † - (MALLEIDAE) (FOSSIL)
- hataii, Crassispira hataii F.S. MacNeil, 1960 † - (PSEUDOMELATOMIDAE) (FOSSIL)
- hataii, Thracia hataii Kamada, 1955 † - (THRACIIDAE) (FOSSIL)
- hataii, Bolma hataii F.S. MacNeil, 1960 † - (TURBINIDAE) (FOSSIL)
- hatairana, Parvedentulina hatairana K.C. Emberton, 2002 - (STREPTAXIDAE)
- hataishinkishii, Syrnola hataishinkishii S. Nomura, 1938 - (PYRAMIDELLIDAE)
- hataisinkishii, Styloptygma hataisinkishii S. Nomura, 1938 - (PYRAMIDELLIDAE)
- Hataiyoldia, Genus Hataiyoldia Kamada, 1962 † (SAREPTIDAE) (FOSSIL)
- hatakedai, Aegista hatakedai J.T. Kuroda & T. Habe, 1951 - (BRADYBAENIDAE)
- hatakedai kawamurai, Aegista hatakedai kawamurai J.T. Kuroda & T. Habe, 1951 - (BRADYBAENIDAE)
- Hatasia, Subgenus Pholadidea (Hatasia) J.E. Gray, 1851 (PHOLADIDAE)
- Hatayin, Genus Hatayin Karacabey-Oztemur & Selcuk, 1983 † (HIPPURITIDA (UNASSIGNED)) (FOSSIL)
- hatcheplata, Venericor hatcheplata (Gardner & E. Bowles, 1939 †) - (CARDITIDAE) (FOSSIL)
- hatcheri, Chilina fulgurata hatcheri H.A. Pilsbry, 1911 - (CHILINIDAE)
- hatcheri, Strobeliella hatcheri H.A. Pilsbry, 1911 - syn of: Strobelitatea hatcheri (H.A. Pilsbry, 1911) - (CLAUSILIIDAE)
- hatcheri, Littoridina hatcheri H.A. Pilsbry, 1911 - syn of: Strobelitatea hatcheri (H.A. Pilsbry, 1911) - (COCHLIOPIDAE)
- hatcheri, Heleobia hatcheri H.A. Pilsbry, 1911 - syn of: Strobelitatea hatcheri (H.A. Pilsbry, 1911) - (COCHLIOPIDAE)
- hatcheri, Varicorbula hatcheri (A.E. Ortmann, 1900 †) - (CORBULIDAE) (FOSSIL)
- hatcheri, Sphenia hatcheri H.A. Pilsbry, 1899 - (MYIDAE)
- hatcheri, Hatchericeras hatcheri H.A. Leanza, 1970 † - syn of: Hatchericeras patagonense Stanton, 1901 † - (NEOCOMITIDAE) (FOSSIL)
- hatcheri, Crassostrea hatcheri H.F.A. von Ihering, 1899 † - (OSTREIDAE) (FOSSIL)
- hatcheri, Struthiolaria hatcheri A.E. Ortmann, 1899 † - (STRUTHIOLARIIDAE) (FOSSIL)
- hatcheri, Strobelitatea hatcheri (H.A. Pilsbry, 1911) - (TATEIDAE)
- Hatchericeras, Genus Hatchericeras Stanton , 1901 † (NEOCOMITIDAE) (FOSSIL)
- hatchetana, Oreohelix hatchetana H.A. Pilsbry, 1915 - (OREOHELICIDAE)
- hatchetigbeensis, Arca hatchetigbeensis G.F. Harris, 1897 † - (ARCIDAE) (FOSSIL)
- hatchetigbeensis, Schedocardia hatchetigbeensis (T.H. Aldrich, 1886 †) - (CARDIIDAE) (FOSSIL)
- hatchetigbeensis, Pelecyora hatchetigbeensis (T.H. Aldrich, 1886 †) - (VENERIDAE) (FOSSIL)
- hatchongi, Macrochlamys hatchongi (J.J.M. de Morgan, 1885) - (ARIOPHANTIDAE)
- hathawayana, Goniatites hathawayana McChesney, 1860 † - syn of: Girtyoceras hathawayanum (McChesney, 1860 †) - (GONIATITIDAE) (FOSSIL)
- hathawayanum, Girtyoceras hathawayanum (McChesney, 1860 †) - (GIRTYOCERATIDAE) (FOSSIL)
- hathewayi, Hyolithes hathewayi Mathew, 1899 † - (HYOLITHIDAE) (FOSSIL)
- hatienensis, Murchisonella hatienensis (E. Saurin, 1962) - (MURCHISONELLIDAE)
- hatimi, Globularia hatimi Abbass, 1972 † - (AMPULLINIDAE) (FOSSIL)
- Hatina, syn of: Genus Serpulorbis M. Sassi, 1827 (VERMETIDAE)
- hatirensis, Nerinella hatirensis Reiner, 1968 † - (NERINELLIDAE) (FOSSIL)
- hatoensis, Cerion uva hatoensis H.B. Baker, 1924 - (CERIONIDAE)
- hatoensis, Tudora rupis hatoensis P.W. Hummelinck, 1940 - (POMATIIDAE)
- hatoviejonis, Limopsis hatoviejonis C.J. Maury, 1917 † - (LIMOPSIDAE) (FOSSIL)
- hatoviejonis, Pecten hatoviejonis C.J. Maury, 1917 † - syn of: Argopecten thetidis (Sowerby, 1850 †) - (PECTINIDAE) (FOSSIL)
- hatschekii, Acrochordiceras hatschekii Diener, 1907 † - (ACROCHORDICERATIDAE) (FOSSIL)
- hattai, Octopus hattai M. Sasaki, 1929 - (OCTOPODIDAE)
- hattenbergeri, Clavatula hattenbergeri F. Nolf & J. Verstraeten, 2008 - (CLAVATULIDAE)
- hattenbergeri, Turbonilla hattenbergeri A. Peñas & E. Rolán, 1997 - (PYRAMIDELLIDAE)
- hattenbergeri, Pseudoliotia hattenbergeri E. Rolán & F. Rubio, 2002 - (TORNIDAE)
- hattenbergeriana, Afroturbonilla hattenbergeriana A. Peñas, E. Rolán & C.F.C. Schander, 1999 - (PYRAMIDELLIDAE)
- hatterasensis, Inodrillia hatterasensis P. Bartsch, 1943 - (HORAICLAVIDAE)
- hattiana, Vitrea hattiana (F. Riedel, 1970) - (PRISTILOMATIDAE)
- hattianus, Oxychilus hattianus F. Riedel, 1970 - (OXYCHILIDAE)
- hattmanni, Unio hattmanni J.R. Bourguignat, 1889 - syn of: Unio arcuatus N.R. Bouchard-Chantereaux, 1838 - (UNIONIDAE)
- hattonensis, Mikro hattonensis L. Hoffman, B. van Heugten & M.S.S. Lavaleye, 2010 - (SKENEIDAE)
- hattorii, Haliotis rufescens hattorii P. Bartsch, 1940 - (HALIOTIDAE)
- Hatumia, Genus Hatumia A. Puente & A. Ruiz, 2006 (TRISSEXODONTIDAE)
- hauchecornei, Crassatellopsis hauchecornei Beushausen, 1895 † - (CRASSATELLOPSIDAE) (FOSSIL)
- hauchecornei, Tamaragonia hauchecornei (M. Schmidt, 1905 †) - (IOTRIGONIIDAE) (FOSSIL)
- hauchecornei, Similipecten hauchecornei (A. von Koenen, 1884 †) - (PROPEAMUSSIIDAE) (FOSSIL)
- hauchecornei, Trigonia hauchecornei M. Schmidt, 1905 † - syn of: Tamaragonia hauchecornei (M. Schmidt, 1905 †) - (TRIGONIIDAE) (FOSSIL)
- hauchecornei, Anatropites hauchecornei Mojsisovics, 1893 † - (TROPITIDAE) (FOSSIL)
- hauchecornei, Vertigo hauchecornei Klebs, 1886 † - (VERTIGINIDAE) (FOSSIL)
- hauchecornei concentrica, Crassatellopsis hauchecornei concentrica Spriestersbach, 1942 † - (CRASSATELLOPSIDAE) (FOSSIL)
- haudcarinatus, Turbo haudcarinatus Münster, 1841 † - (TURBINIDAE) (FOSSIL)
- haudecarinata, Natica haudecarinata Münster, 1841 † - syn of: Laubopsis haudecarinata (Münster, 1841 †) - (NATICIDAE) (FOSSIL)
- haudecarinata, Laubopsis haudecarinata (Münster, 1841 †) - (TRICOLNATICOPSIDAE) (FOSSIL)
- haudmuticus, Murex haudmuticus A.E.M. Cossmann & M.A. Peyrot, 1923 † - (MURICIDAE) (FOSSIL)
- haueri, Acrochordiceras haueri Arthaber, 1911 † - (ACROCHORDICERATIDAE) (FOSSIL)
- haueri, Epadrianites haueri (C. Gemmellaro, 1888 †) - (ADRIANITIDAE) (FOSSIL)
- haueri, Dictyoconites haueri (Mojsisovics, 1871 †) - (AULACOCERATIDAE) (FOSSIL)
- haueri, Echinophoria haueri (R. Hoernes & M. Auinger, 1884 †) - (CASSIDAE) (FOSSIL)
- haueri, Chama haueri Zittel † - (CHAMIDAE) (FOSSIL)
- haueri, Alopia canescens haueri E.A. Bielz, 1859 - (CLAUSILIIDAE)
- haueri, Trypanostylus haueri Giebel, 1856 † - (COELOSTYLINIDAE) (FOSSIL)
- haueri, Gradiella haueri (Stoppani, 1857 †) - (COELOSTYLINIDAE) (FOSSIL)
- haueri, Anachis haueri (M. Hörnes & M. Auinger, 1880) - (COLUMBELLIDAE)
- haueri, Conus haueri Hoernes, 1851 † - (CONIDAE) (FOSSIL)
- haueri, Zonarina haueri (O.G. Michelotti, 1847 †) - (CYPRAEIDAE) (FOSSIL)
- haueri, Gomphoceras haueri Barrande, 1865 † - syn of: Mandaloceras haueri (Barrande, 1865 †) - (DIESTOCERATIDAE) (FOSSIL)
- haueri, Goniatites haueri Münster, 1840 † - syn of: Discoclymenia haueri (Münster, 1840 †) - (GONIATITIDAE) (FOSSIL)
- haueri, Tropigymnites haueri Tozer, 1994 † - (GYMNITIDAE) (FOSSIL)
- haueri, Hamulina haueri (Uhlig, 1883 †) - (HAMULINIDAE) (FOSSIL)
- haueri, Phyllocheilus haueri (Zekeli, 1852 †) - (HARPAGODIDAE) (FOSSIL)
- haueri, Pseudodianella haueri (M. von Neumayr, 1869 †) - (HYDROBIIDAE) (FOSSIL)
- haueri, Loxonema haueri Klipstein, 1843 † - (LOXONEMATIDAE) (FOSSIL)
- haueri, Adnethiceras haueri Wiedmann, 1970 † - (LYTOCERATIDAE) (FOSSIL)
- haueri, Mandaloceras haueri (Barrande, 1865 †) - (MANDALOCERATIDAE) (FOSSIL)
- haueri, Melanopsis haueri Handmann, 1882 † - (MELANOPSIDAE) (FOSSIL)
- haueri, Monotis haueri E.A.L. Kittl, 1912 † - (MONOTIDAE) (FOSSIL)
- haueri, Richardsonoceras haueri (Barrande, 1866 †) - (ONCOCERATIDAE) (FOSSIL)
- haueri, Segmentina haueri F. Stoliczka, 1862 † - (PLANORBIDAE) (FOSSIL)
- haueri, Pleurotomaria haueri R. Hoernes, 1855 † - (PLEUROTOMARIIDAE) (FOSSIL)
- haueri, Discoclymenia haueri (Münster, 1840 †) - (POSTTORNOCERATIDAE) (FOSSIL)
- haueri, Claraia aurita haueri (Tommasi, 1895 †) - (PTERINOPECTINIDAE) (FOSSIL)
- haueri, Sulcogladius haueri (Dreger, 1892 † †) - (ROSTELLARIIDAE) (FOSSIL)
- haueri, Pachypoma haueri E.A.L. Kittl, 1891 † - (TURBINIDAE) (FOSSIL)
- haueri, Athleta haueri R. Hoernes, 1856 † - (VOLUTIDAE) (FOSSIL)
- haueri banovaci, Melanopsis haueri banovaci Š. Brusina, 1902 † - (MELANOPSIDAE) (FOSSIL)
- haueri markusevecensis, Melanopsis haueri markusevecensis W.A. Wenz, 1930 † - (MELANOPSIDAE) (FOSSIL)
- haueri ripanjensis, Melanopsis haueri ripanjensis T.A. Neubauer, M. Harzhauser & al., 2014 † - (MELANOPSIDAE) (FOSSIL)
- haueri serbica, Melanopsis haueri serbica Š. Brusina, 1902 † - syn of: Melanopsis haueri ripanjensis T.A. Neubauer, M. Harzhauser & al., 2014 † - (MELANOPSIDAE) (FOSSIL)
- haueriana, Prozonarina haueriana L. Dolin & P. Lozouet, 2004 † - (CYPRAEIDAE) (FOSSIL)
- hauerianus, Ceratites hauerianus (de Koninck, 1863 †) - (CERATITIDAE) (FOSSIL)
- Hauericeras, Genus Hauericeras de Grossouvre, 1894 † (DESMOCERATIDAE) (FOSSIL)
- Hauerites, Genus Hauerites Mojsisovics , 1893 † (TIBETITIDAE) (FOSSIL)
- hauffei, Corrosella hauffei D. Delicado & M.A. Ramos, 2012 - (HYDROBIIDAE)
- hauffeni, Iglica hauffeni (Š. Brusina, 1886) - (HYDROBIIDAE)
- hauffeni, Spelaeodiscus hauffeni (A. Schmidt, 1855) - (SPELAEODISCIDAE)
- Hauffenia, Genus Hauffenia C. Pollonera, 1898 (HYDROBIIDAE)
- haughi, Pseudocalycoceras haughi Pervinquiere, 1907 † - (ACANTHOCERATIDAE) (FOSSIL)
- haughti, Cimomia haughti (A.A. Olsson, 1928 †) - (HERCOGLOSSIDAE) (FOSSIL)
- haughti, Phos haughti E.S. Marks, 1951 † - (NASSARIIDAE) (FOSSIL)
- haughti, Eutrephoceras haughti A.A. Olsson, 1928 † - syn of: Cimomia haughti (A.A. Olsson, 1928 †) - (NAUTILIDAE) (FOSSIL)
- haughtoni, Toxoceratoides haughtoni Klinger & J. Kennedy, 1977 † - (ANCYLOCERATIDAE) (FOSSIL)
- haughtoni, Chelyconus haughtoni King, 1953 † - (CONIDAE) (FOSSIL)
- haughtoni, Rhiostoma haughtoni W.H. Benson, 1860 - (CYCLOPHORIDAE)
- haughtoni, Trigonephrus haughtoni M. Connolly - (DORCASIIDAE)
- haughtoni, Paraimerites haughtoni Klinger, Kakabadze & J. Kennedy, 1984 † - (HETEROCERATIDAE) (FOSSIL)
- haughtoni, Mayesella haughtoni (Rennie, 1936 †) - (IOTRIGONIIDAE) (FOSSIL)
- haughtoni, Spiraxis haughtoni (W.H. Benson, 1863) - (SPIRAXIDAE)
- Haughtonia, syn of: Genus Rhyssotopsis C.M.F. Ancey, 1887 (ARIOPHANTIDAE)
- haugi, Pseudocalycoceras haugi Pervinquiere, 1907 † - syn of: Pseudocalycoceras haughi Pervinquiere, 1907 † - (ACANTHOCERATIDAE) (FOSSIL)
- haugi, Pseudocalycoceras haugi Pervinquiere, 1907 † - syn of: Pseudocalycoceras haughi Pervinquiere, 1907 † - (ACANTHOCERATIDAE) (FOSSIL)
- haugi, Dictyoconites haugi Mojsisovics, 1902 † - (AULACOCERATIDAE) (FOSSIL)
- haugi, Belemnites haugi Kilian, 1889 † - syn of: Duvalia haugi (Kilian, 1889 †) - (BELEMNITELLIDAE) (FOSSIL)
- haugi, Melchiorites haugi (Kilian, 1910 †) - (DESMOCERATIDAE) (FOSSIL)
- haugi, Puzosia haugi Seunes, 1892 † - syn of: Anabrahmaites vishnu (E. Forbes, 1846 †) - (DESMOCERATIDAE) (FOSSIL)
- haugi, Duvalia haugi (Kilian, 1889 †) - (DUVALIIDAE) (FOSSIL)
- haugi, Lissoceras haugi Sturani, 1966 † - (HAPLOCERATIDAE) (FOSSIL)
- haugi, Heteroceras haugi Karakasch, 1907 † - (HETEROCERATIDAE) (FOSSIL)
- haugi, Homoceras haugi (Ruzhencev & Bogoslovskaya, 1978 †) - (HOMOCERATIDAE) (FOSSIL)
- haugi, Gonionotites haugi C. Gemmellaro, 1904 † - (JUVAVITIDAE) (FOSSIL)
- haugi, Melanopsis haugi Popescu-Voitesti, 1910 † - (MELANOPSIDAE) (FOSSIL)
- haugi, Aconeceras haugi (Sarasin, 1893 †) - (OPPELIIDAE) (FOSSIL)
- haugi, Popanoceras haugi A. Hyatt & Smith, 1905 † - (PARAPOPANOCERATIDAE) (FOSSIL)
- haugi, Orthogarantiana haugi Pavia, 1973 † - (PARKINSONIIDAE) (FOSSIL)
- haugi, Neopopanoceras haugi (A. Hyatt & Smith, 1905 †) - (PROCARNITIDAE) (FOSSIL)
- haugi, Scaphites haugi de Grossouvre, 1894 † - (SCAPHITIDAE) (FOSSIL)
- haugi, Linguatornoceras haugi (Frech, 1902 †) - (TORNOCERATIDAE) (FOSSIL)
- Haugia, Genus Haugia Buckman, 1898 † (PHYMATOCERATIDAE) (FOSSIL)
- Haugiceras, Genus Haugiceras Cossmann, 1900 † (PRIONOCERATIDAE) (FOSSIL)
- Haugiella, Genus Haugiella Gabilly, 1974 † (PHYMATOCERATIDAE) (FOSSIL)
- haugrandis, Turbonilla haugrandis J. Marwick, 1931 † - (PYRAMIDELLIDAE) (FOSSIL)
- haullevillei, Clathurella haullevillei P. Dautzenberg, 1912 - syn of: Bactrocythara haullevillei (P. Dautzenberg, 1912) - (CLATHURELLIDAE)
- haullevillei, Bactrocythara haullevillei (P. Dautzenberg, 1912) - (MANGELIIDAE)
- haullevillei, Turbonilla haullevillei P. Dautzenberg, 1912 - (PYRAMIDELLIDAE)
- haullevillei albida, Bactrocythara haullevillei albida (P. Dautzenberg, 1912) - (MANGELIIDAE)
- Haumea, Genus Haumea W.H. Dall, P. Bartsch & H.A. Rehder, 1938 (PECTINIDAE)
- haumuria, Paracomitas haumuria A.G. Beu, 1979 - (PSEUDOMELATOMIDAE)
- Haumurigonia, Genus Haumurigonia M.R. Cooper, 2015 † (PTEROTRIGONIIDAE) (FOSSIL)
- hauniense, Parvicardium hauniense (J.D. Petersen & H.D. Russell, 1971) - (CARDIIDAE)
- hauniense, Metacerithium hauniense (A. von Koenen, 1885 †) - (METACERITHIIDAE) (FOSSIL)
- hauniensis, Cerithiopsis hauniensis J.P.J. Ravn, 1939 † - (CERITHIOPSIDAE) (FOSSIL)
- hauniensis, Crassatella hauniensis J.P.J. Ravn, 1939 † - (CRASSATELLIDAE) (FOSSIL)
- hauniensis, Cirsotrema hauniensis Schnetler, 2001 † - (EPITONIIDAE) (FOSSIL)
- hauniensis, Clavella hauniensis J.P.J. Ravn, 1939 † - (FASCIOLARIIDAE) (FOSSIL)
- hauniensis, Alvania hauniensis J.P.J. Ravn, 1939 † - (RISSOIDAE) (FOSSIL)
- hauniensis, Solariella hauniensis Schnetler, 2001 † - (SOLARIELLIDAE) (FOSSIL)
- haupti, Pteronychia haupti Pojeta & Gilbert-Tomlinson, 1977 † - (AMBONYCHIIDAE) (FOSSIL)
- haupti, Philippiella haupti (Lambert, 1944) † - (STEINMANELLIDAE) (FOSSIL)
- haupuensis, Godwinia haupuensis C.M. Cooke, 1921 - (OXYCHILIDAE)
- hauraki, Calliostoma hauraki R.K. Dell, 1950 - syn of: Calliostoma waikanae (W.R.B. Oliver, 1926) - (CALLIOSTOMATIDAE)
- Haurakia, Subgenus Pusillina (Haurakia) T. Iredale, 1915 (RISSOIDAE)
- haurakiensis, Notoplax mariae haurakiensis E.A. Ashby, 1926 - (ACANTHOCHITONIDAE)
- haurakiensis, Calliostoma haurakiensis R.K. Dell, 1950 - syn of: Calliostoma waikanae (W.R.B. Oliver, 1926) - (CALLIOSTOMATIDAE)
- haurakiensis, Climocella haurakiensis J.F. Goulstone, 1996 - (CHAROPIDAE)
- haurakiensis, Lorica haurakiensis M.K. Mestayer, 1921 - (LORICIDAE)
- haurakiensis, Odostomia haurakiensis C.R. Laws, 1939 - (PYRAMIDELLIDAE)
- haurakiensis, Tonna haurakiensis C. Hedley, 1919 - syn of: Tonna tankervillii (S.C.T. Hanley, 1860) - (TONNIDAE)
- haurakiensis, Alcithoe fusus haurakiensis (J.R.C. Quoy & J.P. Gaimard, 1833) - (VOLUTIDAE)
- Haurakiopsis, syn of: Subgenus Pusillina (Haurakia) T. Iredale, 1915 (RISSOIDAE)
- haurangiensis, Myrtea haurangiensis P. Vella, 1954 † - (LUCINIDAE) (FOSSIL)
- Haurokoa, Genus Haurokoa C. A. Fleming, 1955 † (RANELLIDAE) (FOSSIL)
- Haurturua, Subgenus Splendrillia (Haurturua) A. Powell, 1942 (DRILLIIDAE)
- hausdorfi, Acicula hausdorfi H.D. Boeters, E. Gittenberger & P. Subai, 1989 - (ACICULIDAE)
- hausdorfi, Iverakia hausdorfi P. Glöer & V.M. Pešic, 2014 - (HYDROBIIDAE)
- hausdorfi, Retinella hausdorfi F. Riedel, 1990 - (ZONITIDAE)
- Hausdorfia, Subgenus Orcula (Hausdorfia) Páll-Gergely & Irikov, 2013 (ORCULIDAE)
- hauseri, Pagodulina hauseri E. Gittenberger, 1978 - (ORCULIDAE)
- hauslabii, Melania hauslabii Klipstein, 1843 † - syn of: Euchrysalis fusiformis (Münster, 1841 †) - (THIARIDAE) (FOSSIL)
- hausmani, Daedalochila hausmani B.D. Jackson, 1948 - (POLYGYRIDAE)
- hausmanni, Neocryptaulax hausmanni (R.W. Dunker, 1843 †) - (CRYPTAULACIDAE) (FOSSIL)
- hausmanni, Humiliworthenia hausmanni (G.A. Goldfuss, 1841 †) - (LOPHOSPIRIDAE) (FOSSIL)
- hausmanni, Liebea hausmanni Sowerby, 1829 † - syn of: Liebea squamosa (Sowerby, 1829 †) - (MYALINIDAE) (FOSSIL)
- hausmanni, Mytilus hausmanni G.A. Goldfuss, 1837 † - syn of: Liebea squamosa (Sowerby, 1829 †) - (MYTILIDAE) (FOSSIL)
- hausmanni, Palliolum hausmanni (G.A. Goldfuss, 1835 †) - (PECTINIDAE) (FOSSIL)
- hausmanni, Ensis hausmanni (G.A. Goldfuss, 1841 †) - (PHARIDAE) (FOSSIL)
- hausmanni, Potamides hausmanni R.W. Dunker, 1843 † - syn of: Neocryptaulax hausmanni (R.W. Dunker, 1843 †) - (POTAMIDIDAE) (FOSSIL)
- haussknechti, Inchoatia haussknechti (O. Böttger, 1886) - (CLAUSILIIDAE)
- haussknechti, Monacha haussknechti (O. Böttger, 1886) - (HYGROMIIDAE)
- haussknechti alticola, Inchoatia haussknechti alticola (H. Nordsieck, 1974) - (CLAUSILIIDAE)
- haussknechti hiltrudae, Inchoatia haussknechti hiltrudae H. Nordsieck, 1974 - (CLAUSILIIDAE)
- haussknechti mouzakiensis, Inchoatia haussknechti mouzakiensis (H. Nordsieck, 2015) - (CLAUSILIIDAE)
- haussknechti orina, Inchoatia haussknechti orina (C.A. Westerlund, 1894) - (CLAUSILIIDAE)
- haussknechti refuga, Inchoatia haussknechti refuga (C.A. Westerlund, 1894) - (CLAUSILIIDAE)
- haussknechti semilaevis, Inchoatia haussknechti semilaevis (O. Böttger, 1889) - (CLAUSILIIDAE)
- Haustator, syn of: Genus Turritella J.B.P.A. Lamarck, 1799 (TURRITELLIDAE)
- Haustellaria, syn of: Genus Haustellum H.C.F. Schumacher, 1817 (MURICIDAE)
- Haustellodoris, syn of: Genus Dendrodoris C.G. Ehrenberg, 1831 (DENDRODORIDIDAE)
- Haustellotyphis, Subgenus Typhis (Haustellotyphis) F.P. Jousseaume, 1880 (MURICIDAE)
- haustellum, Cerithium haustellum T.A. de M. Monterosato in Crema, 1903 - syn of: Cerithium protractum Ant. Bivona-Bernardi in And. Bivona-Bernardi, 1838 - (CERITHIIDAE)
- haustellum, Cerithium vulgatum haustellum T.A. de M. Monterosato, 1903 - (CERITHIIDAE)
- Haustellum, Genus Haustellum H.C.F. Schumacher, 1817 (MURICIDAE)
- haustellum, Haustellum haustellum (C. Linnaeus, 1758) - (MURICIDAE)
- haustellum fallax, Haustellum haustellum fallax E.A. Smith, 1901 - syn of: Haustellum fallax (E.A. Smith, 1901) - (MURICIDAE)
- haustellum kurodai, Haustellum haustellum kurodai T. Shikama, 1964 - syn of: Haustellum kurodai T. Shikama, 1964 - (MURICIDAE)
- haustellum longicaudus, Murex haustellum longicaudus F.C. Baker, 1891 - syn of: Haustellum longicaudum (F.C. Baker, 1891) - (MURICIDAE)
- haustorium, Buccinum haustorium J.F. Gmelin, 1791 - syn of: Haustrum haustorium (J.F. Gmelin, 1791) - (BUCCINIDAE)
- haustorium, Haustrum haustorium (J.F. Gmelin, 1791) - (MURICIDAE)
- haustrellum, Succinea haustrellum H.A. Rehder, 1942 - (SUCCINEIDAE)
- haustrum, Pomacea haustrum L.A. Reeve, 1857 - syn of: Pomacea maculata haustrum (L.A. Reeve, 1857) - (AMPULLARIIDAE)
- haustrum, Pomacea maculata haustrum (L.A. Reeve, 1857) - (AMPULLARIIDAE)
- haustrum, Argonauta haustrum L.W. Dillwyn, 1817 - syn of: Argonauta argo C. Linnaeus, 1758 - (ARGONAUTIDAE)
- haustrum, Argonauta haustrum W. Wood, 1811 - syn of: Argonauta argo C. Linnaeus, 1758 - (ARGONAUTIDAE)
- Haustrum, Genus Haustrum G. Perry, 1811 (MURICIDAE)
- haustrum, Haustrum haustrum T. Martyn, 1784 - syn of: Haustrum haustorium (J.F. Gmelin, 1791) - (MURICIDAE)
- haustrum, Melo haustrum J. Lightfoot, 1786 - syn of: Melo amphora (J. Lightfoot, 1786) - (VOLUTIDAE)
- hauthali, Pachydiscus hauthali (Paulcke, 1907 †) - (DESMOCERATIDAE) (FOSSIL)
- hauthali, Holcodiscus hauthali Paulcke, 1907 † - (HOLCODISCIDAE) (FOSSIL)
- hauthali, Hoplitoplacenticeras plasticus hauthali Paulcke, 1907 † - (PLACENTICERATIDAE) (FOSSIL)
- hauthali, Gymnarus hauthali (R.O. Wilckens, 1905 †) - (PUGNELLIDAE) (FOSSIL)
- hauti, Pupoides hauti H.B. Tristram, 1891 - syn of: Pupoides coenopictus (F.W. Hutton, 1834) - (PUPILLIDAE)
- hautmanni, Achatina schweinfurthi hautmanni E.C. Von Martens, 1865 - (ACHATINIDAE)
- hautmanni, Flemingites hautmanni Brühwiler & Bucher, 2012 † - (FLEMINGITIDAE) (FOSSIL)
- hautotaraensis, Neoguraleus hautotaraensis P. Vella, 1954 † - (MANGELIIDAE) (FOSSIL)
- hauttecoeuri, Coelatura hauttecoeuri (J.R. Bourguignat, 1883) - (UNIONIDAE)
- hauttecoeuri kyogae, Coelatura hauttecoeuri kyogae G. Mandahl-Barth, 1954 - (UNIONIDAE)
- Hauttecoeuria, syn of: Genus Tanganyicia J.C.H. Crosse, 1881 (PALUDOMIDAE)
- Hautura, Genus Hautura † (NEOGASTROPODA (UNASSIGNED)) (FOSSIL)
- Hauturua, Genus Hauturua A. Powell, 1942 (DRILLIIDAE)
- hautzendorfensis, Macrogastra voesendorfensis hautzendorfensis H. Nordsieck, 2014 † - (CLAUSILIIDAE) (FOSSIL)
- hauxwelli, Plekocheilus hauxwelli J.C.H. Crosse, 1872 - (AMPHIBULIMIDAE)
- hauxwelli, Cochliopina hauxwelli T.R. Nuttall, 1990 † - (COCHLIOPIDAE) (FOSSIL)
- hauxwelli, Dyris hauxwelli T.R. Nuttall, 1990 † - (COCHLIOPIDAE) (FOSSIL)
- havanensis, Mesembrinus multilineatus havanensis M.L. Jaume & P.J. Borro, 1941 - (BULIMULIDAE)
- havanensis, Zachrysia auricoma havanensis H.A. Pilsbry, 1894 - (CAMAENIDAE)
- havanensis, Purpuriconus havanensis (C.G. Aguayo & I. Pérez Farfante, 1947) - (CONIDAE)
- havanensis, Drillia havanensis (W.H. Dall, 1881) - (DRILLIIDAE)
- havanensis, Pterynotus havanensis E.H. Vokes, 1970 - syn of: Timbellus phaneus (W.H. Dall, 1889) - (MURICIDAE)
- havanensis, Biomphalaria havanensis (L. Pfeiffer, 1839) - (PLANORBIDAE)
- havanensis, Ancylus havanensis L. Pfeiffer, 1839 - syn of: Gundlachia radiata (L. Guilding, 1828) - (PLANORBIDAE)
- havanensis, Miralda havanensis (H.A. Pilsbry & C.G. Aguayo, 1933) - (PYRAMIDELLIDAE)
- havanensis, Odontosagda havanensis E.G. Vanatta, 1920 - (SAGDIDAE)
- havanensis, Pleurotoma havanensis W.H. Dall, 1881 - syn of: Drillia havanensis (W.H. Dall, 1881) - (TURRIDAE)
- havanensis, Microceramus havanensis C. de la Torre & P. Bartsch, 1972 - (UROCOPTIDAE)
- havannensis, Cystiscus havannensis A. Wakefield & T. McCleery, 2006 - (CYSTISCIDAE)
- Haviyipaludina, syn of: Genus Viviparus P.D. Montfort, 1810 (VIVIPARIDAE)
- havliceki, Bellerophon havliceki Horný, 1963 † - (BELLEROPHONTIDAE) (FOSSIL)
- havliceki, Australonema havliceki Frýda & K. Bandel, 1997 † - (ORIOSTOMATIDAE) (FOSSIL)
- Havlicekiela, Genus Havlicekiela Frýda, 1999 † (SOLENISCIDAE) (FOSSIL)
- Havorbis, syn of: Subgenus Afrogyrus (Hovorbis) D.S. Brown & G. Mandahl-Barth, 1979 (PLANORBIDAE)
- hawaia, Barbatia hawaia W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (ARCIDAE)
- hawaia, Lithophaga hawaia W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Rhomboidella obesa K.W. Ockelmann, 1983 - (MYTILIDAE)
- hawaiana, Meiocardia hawaiana W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Meiocardia samarangiae F.R. Bernard, Y.Y. Cai & F. Morton, 1993 - (GLOSSIDAE)
- hawaiana, Limaria hawaiana (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (LIMIDAE)
- Hawaiarca, Genus Hawaiarca W.H. Dall, P. Bartsch & H.A. Rehder, 1938 (ARCIDAE)
- hawaiensis, Acteocina hawaiensis H.A. Pilsbry, 1921 - syn of: Truncacteocina hawaiensis (H.A. Pilsbry, 1921) - (ACTEOCINIDAE)
- hawaiensis, Barbatia hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Acar plicata (L.W. Dillwyn, 1817) - (ARCIDAE)
- hawaiensis, Vasticardium hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1939 - (CARDIIDAE)
- hawaiensis, Cardita hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (CARDITIDAE)
- hawaiensis, Bittium hawaiensis H.A. Pilsbry & E.G. Vanatta, 1905 - syn of: Ittibittium parcum (A.A. Gould, 1861) - (CERITHIIDAE)
- hawaiensis, Cerithium hawaiensis H.A. Pilsbry & E.G. Vanatta, 1905 - syn of: Ittibittium parcum (A.A. Gould, 1861) - (CERITHIIDAE)
- hawaiensis, Arcinella hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Cardita hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (CHAMIDAE)
- hawaiensis, Carditella hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (CONDYLOCARDIIDAE)
- hawaiensis, Cuspidaria hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (CUSPIDARIIDAE)
- hawaiensis, Truncacteocina hawaiensis (H.A. Pilsbry, 1921) - (CYLICHNIDAE)
- hawaiensis, Gastrochaena hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Gastrochaena cuneiformis L. Spengler, 1783 - (GASTROCHAENIDAE)
- hawaiensis, Hiatella hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Hiatella arctica (C. Linnaeus, 1767) - (HIATELLIDAE)
- hawaiensis, Kellia hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Kellia hawaiiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (KELLIIDAE)
- hawaiensis, Euanodontia hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (LUCINIDAE)
- hawaiensis, Loripinus hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Euanodontia hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (LUCINIDAE)
- hawaiensis, Lymnaea hawaiensis H.A. Pilsbry, 1904 - (LYMNAEIDAE)
- hawaiensis, Botula hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (MYTILIDAE)
- hawaiensis, Nucula hawaiensis H.A. Pilsbry, 1921 - (NUCULIDAE)
- hawaiensis, Pascahinnites coruscans hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (PECTINIDAE)
- hawaiensis, Martesia hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Martesia striata (C. Linnaeus, 1758) - (PHOLADIDAE)
- hawaiensis, Pinna hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Pinna muricata C. Linnaeus, 1758 - (PINNIDAE)
- hawaiensis, Pupoidopsis hawaiensis (C.M. Cooke & H.A. Pilsbry, 1920) - (PUPILLIDAE)
- hawaiensis, Lonoa hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (SEMELIDAE)
- hawaiensis, Spondylus hawaiensis (W.H. Dall, P. Bartsch & H.A. Rehder, 1938) - (SPONDYLIDAE)
- hawaiensis, Euprotomus hawaiensis (H.A. Pilsbry, 1917) - (STROMBIDAE)
- hawaiensis, Angulus hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Tellina ovalis (G.B. I Sowerby, 1825) - (TELLINIDAE)
- hawaiensis, Lyrodus hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Lyrodus pedicellatus (J.L.A. Quatrefages, 1849) - (TEREDINIDAE)
- hawaiensis, Venus hawaiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - syn of: Globivenus toreuma (A.A. Gould, 1850) - (VENERIDAE)
- Hawaiia, Genus Hawaiia G.P.L.K. Gude, 1911 (PRISTILOMATIDAE)
- hawaiiana, Pleurotomella hawaiiana W.H. Dall, 1895 - (RAPHITOMIDAE)
- hawaiiense, Chaetoderma hawaiiense H. Heath, 1911 - (CHAETODERMATIDAE)
- hawaiiensis, Tornatellaria abbreviata hawaiiensis H.A. Pilsbry & C.M. Cooke, 1916 - (ACHATINELLIDAE)
- hawaiiensis, Amastra hawaiiensis A. Hyatt & H.A. Pilsbry, 1911 - (AMASTRIDAE)
- hawaiiensis, Barbatia hawaiiensis J.M. Ostergaard, 1928 - syn of: Barbatia oahua W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (ARCIDAE)
- hawaiiensis, Rhinoclavis fasciata hawaiiensis S.W. Tinker, 1952 ex Dall MS - (CERITHIIDAE)
- hawaiiensis, Conus hawaiiensis P. Bartsch & Rehder Kaicher, 1956 - syn of: Tesselliconus suturatus (L.A. Reeve, 1844) - (CONIDAE)
- hawaiiensis, Mauritia maculifera hawaiiensis E.L. Heiman, 2005 - (CYPRAEIDAE)
- hawaiiensis, Erosaria helvola hawaiiensis (J.C. Melvill, 1888) - (CYPRAEIDAE)
- hawaiiensis, Doris hawaiiensis (E.A. Kay & A.T. Young, 1969) - (DORIDIDAE)
- hawaiiensis, Bessomia hawaiiensis A. Warén, 1980 - (EULIMIDAE)
- hawaiiensis, Thyca hawaiiensis A. Warén, 1980 - (EULIMIDAE)
- hawaiiensis, Pelseneeria hawaiiensis A. Warén, B.L. Burch & T.A. Burch, 1984 - (EULIMIDAE)
- hawaiiensis, Trochostilifer hawaiiensis A. Warén, B.L. Burch & T.A. Burch, 1984 - (EULIMIDAE)
- hawaiiensis, Vitreolina hawaiiensis A. Warén, B.L. Burch & T.A. Burch, 1984 - (EULIMIDAE)
- hawaiiensis, Scalenostoma hawaiiensis H.A. Pilsbry, 1920 - syn of: Scalenostoma subulatum (W.J. Broderip, 1832) - (EULIMIDAE)
- hawaiiensis, Emarginula hawaiiensis W.H. Dall, 1895 - (FISSURELLIDAE)
- hawaiiensis, Helicina hawaiiensis H.A. Pilsbry & C.M. Cooke, 1908 - (HELICINIDAE)
- hawaiiensis, Kellia hawaiiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (KELLIIDAE)
- hawaiiensis, Lasaea hawaiiensis W.H. Dall, P. Bartsch & H.A. Rehder, 1938 - (LASAEIDAE)
- hawaiiensis, Echinolittorina hawaiiensis (J.P. Rosewater & D. Kadolsky, 1981) - (LITTORINIDAE)
- hawaiiensis, Nodilittorina hawaiiensis J.P. Rosewater & D. Kadolsky, 1981 - syn of: Echinolittorina hawaiiensis (J.P. Rosewater & D. Kadolsky, 1981) - (LITTORINIDAE)
- hawaiiensis, Pillucina hawaiiensis (E.A. Smith, 1885) - (LUCINIDAE)
- hawaiiensis, Mitra nubila hawaiiensis E.A. Kay, 1979 - (MITRIDAE)
- hawaiiensis, Koloonella hawaiiensis E.A. Kay, 1979 - (MURCHISONELLIDAE)
- hawaiiensis, Scabrotrophon hawaiiensis R. Houart & R.B. Moffitt, 2010 - (MURICIDAE)
- hawaiiensis, Perna hawaiiensis W.H. Pease, 1871 - syn of: Isognomon californicum (T.A. Conrad, 1837) - (MYTILIDAE)
- hawaiiensis, Neritilia hawaiiensis E.A. Kay, 1979 - (NERITILIIDAE)
- hawaiiensis, Octopus hawaiiensis J.F.T. Eydoux & L.F.A. Souleyet, 1852 - (OCTOPODIDAE)
- hawaiiensis, Nototodarus hawaiiensis (S.S. Berry, 1912) - (OMMASTREPHIDAE)
- hawaiiensis, Microliotia hawaiiensis T. Kase, 1998 - (PICKWORTHIIDAE)
- hawaiiensis, Vitrea hawaiiensis C.M.F. Ancey - syn of: Nesovitrea hawaiiensis (C.M.F. Ancey, 1904) - (PRISTILOMATIDAE)
- hawaiiensis, Proneomenia hawaiiensis H. Heath, 1905 - (PRONEOMENIIDAE)
- hawaiiensis, Isognomon hawaiiensis W.H. Pease, 1871 - syn of: Isognomon californicum (T.A. Conrad, 1837) - (PTERIIDAE)
- hawaiiensis, Pupoides hawaiiensis H.A. Pilsbry & C.M. Cooke, 1921 - (PUPILLIDAE)
- hawaiiensis, Sinezona hawaiiensis D.L. Geiger & J.H. McLean, 2010 - (SCISSURELLIDAE)
- hawaiiensis, Heteroteuthis hawaiiensis (S.S. Berry, 1909) - (SEPIOLIDAE)
- hawaiiensis, Stephanoteuthis hawaiiensis S.S. Berry, 1909 - syn of: Heteroteuthis hawaiiensis (S.S. Berry, 1909) - (SEPIOLIDAE)
- hawaiiensis, Bankia hawaiiensis C.H. Edmondson, 1942 - syn of: Bankia bipalmulata (J.B.P.A. Lamarck, 1801) - (TEREDINIDAE)
- hawaiiensis, Tonna hawaiiensis C.G. Vos, 2007 - (TONNIDAE)
- hawaiiensis, Marionia hawaiiensis (W.H. Pease, 1860) - (TRITONIIDAE)
- hawaiiensis, Vanikoro hawaiiensis H.A. Pilsbry, 1920 - (VANIKORIDAE)
- hawaiiensis, Lyropupa hawaiiensis C.M.F. Ancey, 1904 - (VERTIGINIDAE)
- hawaiiensis, Nesovitrea hawaiiensis (C.M.F. Ancey, 1904) - (ZONITIDAE)
- Hawaiistrombus, syn of: Genus Canarium H.C.F. Schumacher, 1817 (STROMBIDAE)
- hawarensis, Carditella hawarensis (H. Claus, 1863) - (CONDYLOCARDIIDAE)
- hawera, Bathytoma hawera (C.R. Laws, 1940 †) - (BORSONIIDAE) (FOSSIL)
- hawera, Calliostoma hawera P.G. Oliver, 1926 † - (CALLIOSTOMATIDAE) (FOSSIL)
- hawera, Waikura hawera C.R. Laws, 1941 † - (PYRAMIDELLIDAE) (FOSSIL)
- hawera, Pterolabrella hawera (C.R. Laws, 1940 †) - (TORNIDAE) (FOSSIL)
- haweraensis, Penion haweraensis (Powell, 1931 †) - (BUCCINIDAE) (FOSSIL)
- haweraensis, Scalptia haweraensis (C.R. Laws, 1940 †) - (CANCELLARIIDAE) (FOSSIL)
- haweraensis, Emarginula haweraensis Powell, 1931 † - (FISSURELLIDAE) (FOSSIL)
- haweraensis, Natica haweraensis J. Marwick, 1924 † - syn of: Taniella planisuturalis (J. Marwick, 1924 †) - (NATICIDAE) (FOSSIL)
- haweraensis, Alcithoe haweraensis J. Marwick, 1926 † - (VOLUTIDAE) (FOSSIL)
- hawkerana, Sinumelon hawkerana G.A. Solem, 1992 - (CAMAENIDAE)
- hawkinsi, Kazakhoceras hawkinsi (Moore, 1930 †) - (BERKHOCERATIDAE) (FOSSIL)
- hawkinsi, Oxyloma hawkinsi (W. Baird, 1863) - (SUCCINEIDAE)
- Hawletrochus, Genus Hawletrochus Frýda & Bandel, 1997 † (ELASMONEMATIDAE) (FOSSIL)
- hawleyi, Nassarius hawleyi T. Iredale, 1936 - syn of: Nassarius splendidulus R.W. Dunker, 1846 - (NASSARIIDAE)
- hawleyi, Gemmula hawleyi (T. Iredale, 1931) - (TURRIDAE)
- hawni, Monotis hawni F.B. Meek & Hayden, 1858 † - syn of: Pseudomonotis hawni (F.B. Meek & Hayden, 1858 †) - (MONOTIDAE) (FOSSIL)
- hawni, Pecten hawni H.B. Geinitz, 1866 † - syn of: Acanthopecten carboniferus (Stevens, 1858 †) - (PECTINIDAE) (FOSSIL)
- hawni, Physella gyrina hawni I. Lea, 1864 - (PHYSIDAE)
- hawni, Pseudomonotis hawni (F.B. Meek & Hayden, 1858 †) - (PSEUDOMONOTIDAE) (FOSSIL)
- hawnii, Physa hawnii I. Lea, 1864 - syn of: Physella gyrina hawni I. Lea, 1864 - (PHYSIDAE)
- haworthi, Capulus haworthi Beede, 1907 † - syn of: Lepetopsis haworthi (Beede, 1907 †) - (CAPULIDAE) (FOSSIL)
- haworthi, Trepospira haworthi Beede, 1907 † - syn of: Cyclobathmus haworthi (Beede, 1907 †) - (EOTOMARIIDAE) (FOSSIL)
- haworthi, Lepetopsis haworthi (Beede, 1907 †) - (LEPETOPSIDAE) (FOSSIL)
- haworthi, Cyclobathmus haworthi (Beede, 1907 †) - (MICRODOMATIDAE) (FOSSIL)
- hawskerense, Pleuroceras hawskerense (A.T. Young & Bird, 1828 †) - (AMALTHEIDAE) (FOSSIL)
- Hawthorneachiton, Genus Hawthorneachiton Kluessendorf, 1987 † (PALEOLORICATA (UNASSIGNED)) (FOSSIL)
- hawthornei, Melapium hawthornei B.F. Kensley & Pether, 1986 † - (STREPSIDURIDAE) (FOSSIL)
- hawthornense, Mandaloceras hawthornense Foerste † - (MANDALOCERATIDAE) (FOSSIL)
- hayae, Acaenoplax hayae Sutton & al., 2001 † - (MOLLUSCA INCERTAE SEDIS) (FOSSIL)
- hayamanum, Calliostoma hayamanum (J.T. Kuroda & T. Habe, 1971) - (CALLIOSTOMATIDAE)
- Hayamia, Genus Hayamia Kase, 1980 † (NERITOPSIDAE) (FOSSIL)
- Hayamiella, Genus Hayamiella Kase, 1984 † (NERITOPSIDAE) (FOSSIL)
- hayamii, Latiala hayamii (T. Kase, 1984 †) - (APORRHAIDAE) (FOSSIL)
- hayamii, Permoperna hayamii Nakazawa & Newell, 1968 † - syn of: Permoperna trapezoidalis (Kayser, 1883 †) - (BAKEVELLIIDAE) (FOSSIL)
- hayamii, Chlamydella hayamii Paulay & Preece 2000 † - (CYCLOCHLAMYDIDAE) (FOSSIL)
- hayasakai, Aviculopecten hayasakai (Murata, 1964 †) - (AVICULOPECTINIDAE) (FOSSIL)
- hayasakai, Diplommatina hayasakai J.T. Kuroda, 1956 - (DIPLOMMATINIDAE)
- hayasakai, Etheripecten hayasakai Murata, 1964 † - syn of: Aviculopecten hayasakai (Murata, 1964 †) - (HETEROPECTINIDAE) (FOSSIL)
- hayasakai, Costataenia hayasakai A. Nützel & Nakazawa, 2012 † - (MURCHISONIIDAE) (FOSSIL)
- hayasakai, Turbonilla hayasakai S. Nomura, 1938 - (PYRAMIDELLIDAE)
- hayasakai, Bassina hayasakai T. Kotaka, 1977 - syn of: Placamen lamellatum (P.F. Röding, 1798) - (VENERIDAE)
- Hayasakapecten, Genus Hayasakapecten Nakazawa & Newell, 1968 † (PTERIIDA (UNASSIGNED)) (FOSSIL)
- hayashi, Amalda hayashi T. Ninomiya, 1988 - syn of: Amalda rubiginosa (W.J. Swainson, 1823) - (ANCILLARIIDAE)
- hayashi, Eosipho hayashi (T. Shikama, 1971) - (BUCCINIDAE)
- hayashii, Gyriscus hayashii T. Shikama, 1970 - syn of: Heliacus asteleformis (A.W.B. Powell, 1965) - (ARCHITECTONICIDAE)
- hayashii, Heliacus hayashii T. Shikama, 1970 - syn of: Heliacus asteleformis (A.W.B. Powell, 1965) - (ARCHITECTONICIDAE)
- hayashii, Assiminea hayashii T. Habe, 1942 - syn of: Taiwanassiminea hayasii (T. Habe, 1942) - (ASSIMINEIDAE)
- hayashii, Calliostoma hayashii T. Shikama, 1977 - (CALLIOSTOMATIDAE)
- hayashii, Phaedusa hayashii J.T. Kuroda, 1941 - (CLAUSILIIDAE)
- hayashii, Epitonium hayashii (T. Habe, 1961) - (EPITONIIDAE)
- hayashii, Hyaloscala hayashii T. Habe, 1961 - syn of: Epitonium hayashii (T. Habe, 1961) - (EPITONIIDAE)
- hayashii, Granulifusus hayashii T. Habe, 1961 - (FASCIOLARIIDAE)
- hayashii, Enotepteron hayashii I. Hamatani, 2009 - (GASTROPTERIDAE)
- hayashii, Nebularia hayashii (T. Kira, 1959) - (MITRIDAE)
- hayashii, Latiaxis hayashii T. Shikama, 1966 - (MURICIDAE)
- hayashii, Nassarius hayashii T. Habe, 1964 - syn of: Nassarius subtranslucidus (E.A. Smith, 1903) - (NASSARIIDAE)
- hayashii, Zeuxis hayashii T. Habe, 1961 - syn of: Nassarius subtranslucidus (E.A. Smith, 1903) - (NASSARIIDAE)
- hayashii, Naticarius hayashii T. Shikama & M. Horikoshi, 1963 - syn of: Naticarius excellens (M. Azuma, 1961) - (NATICIDAE)
- hayashii, Neverita didyma hayashii (M. Azuma, 1961) - (NATICIDAE)
- hayashii, Pseudophiline hayashii (T. Habe, 1976) - (PHILINORBIDAE)
- hayashii, Philinorbis hayashii T. Habe, 1976 - syn of: Pseudophiline hayashii (T. Habe, 1976) - (PHILINORBIDAE)
- hayashii, Poromya hayashii T. Habe, 1958 - (POROMYIDAE)
- hayashii, Comitas hayashii (T. Shikama, 1977) - (PSEUDOMELATOMIDAE)
- hayashii, Dosinia hayashii (T. Habe, 1976) - (VENERIDAE)
- hayashii, Pliocardia hayashii (T. Habe, 1976) - (VESICOMYIDAE)
- hayashii, Psephaea kaneko hayashii T. Habe & K. Itô, 1965 - (VOLUTIDAE)
- hayasii, Taiwanassiminea hayasii (T. Habe, 1942) - (ASSIMINEIDAE)
- hayasii, Assiminea hayasii T. Habe, 1942 - syn of: Taiwanassiminea hayasii (T. Habe, 1942) - (ASSIMINEIDAE)
- hayasii, Pseudophaedusa hayasii (J.T. Kuroda, 1941) - (CLAUSILIIDAE)
- hayasii chihpenensis, Pseudophaedusa hayasii chihpenensis C.K. Chang, 1986 - (CLAUSILIIDAE)
- haycocki, Mitra haycocki W.H. Dall & P. Bartsch, 1911 - syn of: Mitromorpha haycocki (W.H. Dall & P. Bartsch, 1911) - (MITRIDAE)
- haycocki, Mitromorpha haycocki (W.H. Dall & P. Bartsch, 1911) - (MITROMORPHIDAE)
- haycocki, Mitrolumna haycocki W.H. Dall & P. Bartsch, 1911 - syn of: Mitromorpha haycocki (W.H. Dall & P. Bartsch, 1911) - (MITROMORPHIDAE)
- haycocki, Turbonilla haycocki W.H. Dall & P. Bartsch, 1911 - (PYRAMIDELLIDAE)
- haycocki, Argyrodonax haycocki W.H. Dall, 1911 - (SEMELIDAE)
- haydeni, Anchura haydeni White, 1878 † - (APORRHAIDAE) (FOSSIL)
- haydeni, Turricula haydeni Cox, 1930 † - (CLAVATULIDAE) (FOSSIL)
- haydeni, Ancistrosyrinx haydeni W.H. Dall, 1881 † - syn of: Ancistrosyrinx dalli A.A. Olsson, 1922 † - (COCHLESPIRIDAE) (FOSSIL)
- haydeni, Krafftoceras haydeni Diener, 1903 † - syn of: Cyclolobus walkeri Diener, 1903 † - (CYCLOLOBIDAE) (FOSSIL)
- haydeni, Dagnoceras haydeni Smith, 1932 † - syn of: Meekoceras haydeni (Smith, 1932 †) - (DINARITIDAE) (FOSSIL)
- haydeni, Etheripecten haydeni Nakazawa, 1981 † - (HETEROPECTINIDAE) (FOSSIL)
- haydeni, Meekoceras haydeni (Smith, 1932 †) - (MEEKOCERATIDAE) (FOSSIL)
- haydeni, Oreohelix haydeni (W.M. Gabb, 1869) - (OREOHELICIDAE)
- haydeni, Flemingostrea haydeni A.E.M. Cossmann & G. Pissarro, 1927 † - (OSTREIDAE) (FOSSIL)
- haydeni, Proptychites haydeni (Krafft, 1909 †) - (PROPTYCHITIDAE) (FOSSIL)
- haydeni, Scaphites warreni haydeni Cobban, 1951 † - (SCAPHITIDAE) (FOSSIL)
- haydeni, Oxyloma haydeni (W.G. Binney, 1858) - (SUCCINEIDAE)
- haydeni, Pleurotoma haydeni E.W. Vredenburg, 1925 † - (TURRIDAE) (FOSSIL)
- haydeni betheli, Oreohelix haydeni betheli H.A. Pilsbry & T.D.A. Cockerell, 1913 - (OREOHELICIDAE)
- haydeni kanabensis, Oxyloma haydeni kanabensis (H.A. Pilsbry, 1948) - (SUCCINEIDAE)
- haydeni oquirrhensis, Oreohelix haydeni oquirrhensis (H. Hemphill, 1886) - (OREOHELICIDAE)
- Haydenia, Genus Haydenia Tyron, 1884 † (CAENOGASTROPODA (UNASSIGNED)) (FOSSIL)
- haydeniana, Pleuromya haydeniana Girty, 1927 † - (PLEUROMYIDAE) (FOSSIL)
- Haydenoceras, Genus Haydenoceras Flower, 1949 † (BARRANDOCERATIDAE) (FOSSIL)
- hayeki, Doris hayeki J.A. Ortea, 1998 - (DORIDIDAE)
- hayesae, Mitra hayesae G.W. Nowell-Usticke, 1959 - syn of: Atlantilux exigua (C.B. Adams, 1845) - (MITRIDAE)
- hayesae, Natica hayesae G.W. Nowell-Usticke, 1959 - syn of: Stigmaulax cayennensis (C.A. Récluz, 1850) - (NATICIDAE)
- hayesi, Bruceina hayesi (D.G. Herbert, 1995) - (CALLIOSTOMATIDAE)
- hayesi, Ceratites hayesi McLearn, 1948 † - syn of: Tetsaoceras hayesi (McLearn, 1948 †) - (CERATITIDAE) (FOSSIL)
- hayesi, Mitrella hayesi M. Lussi, 2002 - (COLUMBELLIDAE)
- hayesi, Conus hayesi Arnold, 1909 † - (CONIDAE) (FOSSIL)
- hayesi, Conus hayesi W. Korn, 2000 - syn of: Sciteconus brianhayesi (W. Korn, 2001) - (CONIDAE)
- hayesi, Austromitra hayesi H. Turner, 1999 - (COSTELLARIIDAE)
- hayesi, Splendrillia hayesi R.N. Kilburn, 1998 - (DRILLIIDAE)
- hayesi, Fusinus hayesi M.A. Snyder, 1996 - (FASCIOLARIIDAE)
- hayesi, Tetsaoceras hayesi (McLearn, 1948 †) - (LONGOBARDITIDAE) (FOSSIL)
- hayesi, Marginella hayesi L. Bozzetti, 1993 - (MARGINELLIDAE)
- hayesi, Vaughtia hayesi (F.Jr. Lorenz, 1995) - (MURICIDAE)
- hayesi, Coralliophila hayesi C. Smriglio & P. Mariottini, 2002 - (MURICIDAE)
- hayesi, Miniaceoliva hayesi D.M. Sargent & E.J. Petuch, 2012 - (OLIVIDAE)
- hayesi, Naudedrillia hayesi R.N. Kilburn, 2005 - (PSEUDOMELATOMIDAE)
- hayesi, Daphnella hayesi G.W. Nowell-Usticke, 1959 - (RAPHITOMIDAE)
- hayesi, Sirenites hayesi (Smith, 1927 †) - (TRACHYCERATIDAE) (FOSSIL)
- hayesiana, Clathurella hayesiana G.F. Angas, 1871 - syn of: Asperdaphne hayesiana (G.F. Angas, 1871) - (CLATHURELLIDAE)
- hayesiana, Asperdaphne hayesiana (G.F. Angas, 1871) - (RAPHITOMIDAE)
- hayesii, Clinocardium hayesii W. Stimpson, 1864 - syn of: Ciliatocardium ciliatum (O. Fabricius, 1780) - (CARDIIDAE)
- hayesorum, Mitrella hayesorum Duerr, 2008 † - (COLUMBELLIDAE) (FOSSIL)
- haygarthi, Trachycystis haygarthi (J.C. Melvill & J.H. Ponsonby, 1899) - (CHAROPIDAE)
- hayi, Metacoceras hayi A. Hyatt, 1891 † - (TAINOCERATIDAE) (FOSSIL)
- hayii, Pedinogyra hayii (E. Griffith & E. Pidgeon, 1833) - (CARYODIDAE)
- hayii allani, Pedinogyra hayii allani T. Iredale, 1937 - (CARYODIDAE)
- haylocki, Crassinella haylocki H.A. Pilsbry & A.A. Olsson, 1941 - syn of: Crassinella varians (Carpenter, 1857) - (CRASSATELLIDAE)
- haynaldiana, Helix haynaldiana J. Hazay, 1880 - syn of: Helix pomatia C. Linnaeus, 1758 - (HELICIDAE)
- haynesi, Aclyvolva haynesi G.B. III Sowerby, 1889 - syn of: Pellasimnia angasi (L.A. Reeve, 1865) - (OVULIDAE)
- haynesi, Phenacovolva haynesi G.B. III Sowerby, 1889 - syn of: Pellasimnia angasi (L.A. Reeve, 1865) - (OVULIDAE)
- haynesi, Pellasimnia haynesi G.B. III Sowerby, 1889 - syn of: Pellasimnia angasi (L.A. Reeve, 1865) - (OVULIDAE)
- haynesi, Ovula haynesi G.B. III Sowerby, 1889 - syn of: Pellasimnia angasi (L.A. Reeve, 1865) - (OVULIDAE)
- haynesi, Volva haynesi G.B. III Sowerby, 1889 - syn of: Pellasimnia angasi (L.A. Reeve, 1865) - (OVULIDAE)
- haynesi, Solenotellina haynesi H.B. Preston, 1914 - syn of: Hiatula alba (J.B.P.A. Lamarck, 1818) - (PSAMMOBIIDAE)
- haynesi, Gari haynesi H.B. Preston, 1914 - syn of: Hiatula alba (J.B.P.A. Lamarck, 1818) - (PSAMMOBIIDAE)
- haynesi, Rectoclymenia haynesi House, 1962 † - (RECTOCLYMENIIDAE) (FOSSIL)
- haynesi, Carswellena haynesi (H.B. Preston, 1914) - (TURBINIDAE)
- hayniana, Vanuxemia hayniana Safford † - (CYRTODONTIDAE) (FOSSIL)
- hayseldeni, Partulina semicarinata hayseldeni D.D. Baldwin, 1896 - (ACHATINELLIDAE)
- haysiana, Elimia haysiana (I. Lea, 1843) - (PLEUROCERIDAE)
- haysiana, Dysnomia haysiana (I. Lea, 1834) - (UNIONIDAE)
- haytensis, Pyruconus haytensis (G.B. II Sowerby, 1850 †) - (CONIDAE) (FOSSIL)
- haytensis, Dentalium haytensis W.M. Gabb, 1873 † - (DENTALIIDAE) (FOSSIL)
- haytensis, Terebra haytensis W.H. Dall, 1895 † - (TEREBRIDAE) (FOSSIL)
- hazardi, Boreotrophon hazardi J.H. McLean, 1996 - (MURICIDAE)
- hazarica, Subzebrinus hazarica (G.P.L.K. Gude, 1914) - (ENIDAE)
- Hazaya, syn of: Genus Vidovicia Š. Brusina, 1904 (HELICIDAE)
- hazayana, Anodonta hazayana G. Servain, 1881 - syn of: Anodonta cygnea (C. Linnaeus, 1758) - (UNIONIDAE)
- hazayi, Paludina hazayi C.A. Westerlund, 1886 - syn of: Viviparus acerosus J.R. Bourguignat, 1862 - (VIVIPARIDAE)
- hazayi contracta, Melanopsis hazayi contracta Š. Brusina, 1903 † - syn of: Microcolpia parreyssii sikorai (Š. Brusina, 1903 †) - (MELANOPSIDAE) (FOSSIL)
- hazayi elongata, Melanopsis hazayi elongata Š. Brusina, 1903 † - syn of: Microcolpia parreyssii sikorai (Š. Brusina, 1903 †) - (MELANOPSIDAE) (FOSSIL)
- hazayi megatyla, Melanopsis hazayi megatyla Š. Brusina, 1903 † - syn of: Microcolpia parreyssii sikorai (Š. Brusina, 1903 †) - (MELANOPSIDAE) (FOSSIL)
- hazelae, Coelostemma hazelae H.A. Pilsbry, 1953 - (UROCOPTIDAE)
- hazelhurstianus, Unio hazelhurstianus I. Lea, 1858 - syn of: Elliptio lanceolata I. Lea, 1827 - (UNIONIDAE)
- hazeli, Dinocardium robustum hazeli Ward & B.W. Blackwelder, 1987 - (CARDIIDAE)
- hazeli, Cyrtodonta hazeli Pojeta & Gilbert-Tomlinson, 1977 † - (CYRTODONTIDAE) (FOSSIL)
- hazelwoodi, Allodiscus hazelwoodi B.A. Marshall & G.M. Barker, 2008 - (CHAROPIDAE)
- hazelwoodi, Chaureopa hazelwoodi F.M. Climo, 1985 - (CHAROPIDAE)
- hazelwoodi, Cytora hazelwoodi B.A. Marshall & G.M. Barker, 2007 - (LIAREIDAE)
- haziersensis, Mitrella haziersensis (J. Drivas & M. Jay, 1990) - (COLUMBELLIDAE)
- hazinorum, Conasprelloides hazinorum E.J. Petuch & B.W. Myers, 2014 - (CONIDAE)
- Hazuregyra, Genus Hazuregyra T. Shikama, 1962 (SOLARIELLIDAE)
- hazzardi, Acanthoceras hazzardi L.W. Stephenson, 1952 † - syn of: Acanthoceras amphibolum C.C. Morrow, 1935 † - (ACANTHOCERATIDAE) (FOSSIL)
- hazzardi, Allocrioceras hazzardi A.T. Young, 1963 † - (ANISOCERATIDAE) (FOSSIL)
- hazzardi, Pachydiscus hazzardi Jones, 1963 † - (DESMOCERATIDAE) (FOSSIL)
- headillus, Bembexia headillus A.H. Clarke, 1909 † - (EOTOMARIIDAE) (FOSSIL)
- headonensis, Cochlicopa headonensis R.B. Newton & G.F. Harris, 1894 † - (COCHLICOPIDAE) (FOSSIL)
- headonensis, Nucula headonensis Morris † - (NUCULIDAE) (FOSSIL)
- healdi, Psiloteredo healdi (P. Bartsch, 1931) - (TEREDINIDAE)
- Healeya, Genus Healeya Hautmann, 2001 † (KALENTERIDAE) (FOSSIL)
- healeyi, Cypraea healeyi T.H. Aldrich, 1923 † - syn of: Sulcocypraea healeyi (T.H. Aldrich, 1923 †) - (CYPRAEIDAE) (FOSSIL)
- healeyi, Sulcocypraea healeyi (T.H. Aldrich, 1923 †) - (EOCYPRAEIDAE) (FOSSIL)
- healeyi, Eulima healeyi (A.M. Strong & L.G. Hertlein, 1939) - (EULIMIDAE)
- healeyi, Patinopecten healeyi R. Arnold, 1906 † - (PECTINIDAE) (FOSSIL)
- healeyi, Pseudocypraea healeyi (T.H. Aldrich, 1923 †) - (PEDICULARIIDAE) (FOSSIL)
- healyi, Glyptoactis healyi (C.A. Fleming, 1950 †) - (CARDITIDAE) (FOSSIL)
- healyi, Dentalium healyi G. Steiner & A. Kabat, 2004 - (DENTALIIDAE)
- healyi, Oenopota healyi W.H. Dall, 1919 - (MANGELIIDAE)
- healyi, Margarites healyi W.H. Dall, 1919 - (MARGARITIDAE)
- healyi, Amplicolpus healyi J. Marwick, 1971 † - (TURRITELLIDAE) (FOSSIL)
- healyi, Atamarcia healyi (J. Marwick, 1948 †) - (VENERIDAE) (FOSSIL)
- healyi, Hyphantosoma healyi (K.L. Lamprell & J. Stanisic, 1996) - (VENERIDAE)
- heaphyi, Teredo heaphyi C.A. von Zittel, 1865 † - (TEREDINIDAE) (FOSSIL)
- heardensis, Laevilitorina heardensis R.K. Dell, 1964 - (LITTORINIDAE)
- heardi, Corbicula heardi R.A.M. Brandt, 1974 - (CYRENIDAE)
- heardi, Utterbackiana heardi W.J. Gordon & W.R. Hoeh, 1995 - (UNIONIDAE)
- hearni, Parapuzosia hearni Anderson, 1958 † - (DESMOCERATIDAE) (FOSSIL)
- hearni, Turritella hearni Merriam, 1941 † - (TURRITELLIDAE) (FOSSIL)
- hearstorum, Philine hearstorum Gonzales & T.M. Gosliner, 2014 - syn of: Philinorbis hearstorum (Gonzales & T.M. Gosliner, 2014) - (PHILINIDAE)
- hearstorum, Philinorbis hearstorum (Gonzales & T.M. Gosliner, 2014) - (PHILINORBIDAE)
- heatherae, Monostiolum heatherae E.J. Petuch, 1994 † - (BUCCINIDAE) (FOSSIL)
- heatherae, Goniobranchus heatherae (T.M. Gosliner, 1994) - (CHROMODORIDIDAE)
- heatheraikenae, Parachondria heatheraikenae Watters, 2016 - (POMATIIDAE)
- heathi, Japetella heathi (S.S. Berry, 1911) - (BOLITAENIDAE)
- heathi, Geitodoris heathi (F.M. MacFarland, 1905) - (DISCODORIDIDAE)
- heathi, Discodoris heathi F.M. MacFarland, 1905 - syn of: Geitodoris heathi (F.M. MacFarland, 1905) - (DISCODORIDIDAE)
- heathi, Dendrochiton heathi S.S. Berry, 1918 - syn of: Dendrochiton flectens (P.P. Carpenter, 1864) - (LEPIDOCHITONIDAE)
- heathi, Lepidopleurus heathi S.S. Berry, 1919 - syn of: Leptochiton nexus P.P. Carpenter, 1864 - (LEPTOCHITONIDAE)
- heathi, Doryssa heathi (F.C. Baker, 1914) - (PACHYCHILIDAE)
- heathi, Odostomia heathi A.G. Smith & W.J. Gordon, 1948 - (PYRAMIDELLIDAE)
- heathi, Anamenia heathi E.H.J. Leloup, 1947 - syn of: Anamenia gorgonophila (A. Kowalevsky, 1880) - (STROPHOMENIIDAE)
- Heathia, Genus Heathia K.H.J. Thiele, 1913 (DONDERSIIDAE)
- heathiana, Stenoplax heathiana (S.S. Berry, 1946) - (ISCHNOCHITONIDAE)
- heathiana, Stenoradsia heathiana S.S. Berry, 1946 - syn of: Stenoplax heathiana (S.S. Berry, 1946) - (ISCHNOCHITONIDAE)
- heathii, Mopalia heathii H.A. Pilsbry, 1898 - (MOPALIIDAE)
- Heathilla, syn of: Genus Fluminicola W. Stimpson, 1865 (LITHOGLYPHIDAE)
- Heathimenia, syn of: Genus Neomenia S.A.T. Tullberg, 1875 (NEOMENIIDAE)
- heati, Helicina heati L. Pfeiffer, 1856 - (HELICINIDAE)
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