Anemina globosula (P.M. Heude, 1878) Poyang Lake, Jiangxi, China59 mm
Unionelloides globulosus (FOSSIL) (D. Mongin, 1963 †) Niger76 mm
Nephronaias goascoranensis (I. Lea, 1858) Honduras
Coelatura gommeryi (FOSSIL) Musalizi, 2017 † Uganda
Lamprotula gottschei (E.C. Von Martens, 1894) North Korea, Pyongsong
Parreysia gowhattensis (W. Theobald, 1873) India, Gowhatty
Unio grabaui (FOSSIL) Martinson, 1956 † Niger, Agadez37,5 mm
Simpsonella gracilis (I. Lea, 1850) Philippines, Panay Island
Rhabdotophorus gracilis (FOSSIL) H.D. Russell, 1935 † Canada, Alberta, Division No. 2
Micronaias granadensis (I. Lea, 1868) Nicaragua
Anodonta grandis T. Say, 1829 Arkansas98,4 mm
Anodonta grandis corpulenta J.G. Cooper, 1834 Ohio, Warren County
Anodonta grandis simpsoniana I. Lea, 1861 Kansas
Contradens gratiosus (R.A. Philippi, 1845) Cambodia
Lanceolaria grayana (I. Lea, 1834) Poyang Lake, Jiangxi, China107 mm
Lanceolaria grayana fruhstorferi P. Dautzenberg, 1900 Poyang Lake, Jiangxi, China
Ptychobranchus greenii (T.A. Conrad, 1834) Alabama
Psorula guatemalensis (C.T. Simpson, 1900) Guatemala
Nephronaias gundlachi (R.W. Dunker, 1858) Cuba
Lampsilis haddletoni E.W. Athearn, 1964 Florida, Choctawhatchee River
Pseudodon hageni (B. Strubell, 1897) Malaysia, Perak
Chamberlainia hainesiana (I. Lea, 1856) Thailand
Unio hamili (FOSSIL) McLearn, 1929 †
Pleurobema hanleyianum I. Lea, 1852 Alabama, Cahaba River
Nephritica haricotti (L.S. Frierson, 1927) Guatemala
Utterbackiana hartfieldorum (G.C. Williams, A. Bogan& J.T. Garner, 2009) Florida
Pleurobema hartmanianum (I. Lea, 1860) Alabama
Coelatura hauttecoeuri (J.R. Bourguignat, 1883) Lake Victoria31 mm
Coelatura hauttecoeuri kyogae G. Mandahl-Barth, 1954 Lake Victoria27 mm
Dysnomia haysiana (I. Lea, 1834) Tennessee, Nashville
Utterbackiana heardi W.J. Gordon & W.R. Hoeh,1995 Florida, Apalachicola River
Elliptio hepatica (I. Lea, 1859) South Carolina
Nephronaias hermanni (F. Haas, 1929) Mexico, Tabasco
Psoronaias herrerae (W.B. Marshall, 1923) Tamaulipas, Mexico
Alasmidonta heterodon (I. Lea, 1830) Massachussetts