Subgenus (Anodonta) J. B. P. A. de Lamarck, 1799

(3-5-4-0-4-9-3-16-2-0-0-0-0)

beringiana A. T. Middendorff, 1851
(3-5-4-0-4-9-3-16-2-1-0-0-0)
Yukon Floater
Ref. Amer. Fish. Soc., 1988 p 28

californiensis I. Lea, 1852
(3-5-4-0-4-9-3-16-2-2-0-0-0)
California Floater
Ref. Amer. Fish. Soc., 1988 p 28

cataracta T. Say, 1817
(3-5-4-0-4-9-3-16-2-3-0-0-0)

cataracta T. Say, 1817
(3-5-4-0-4-9-3-16-2-3-1-0-0)
Eastern Floater
Ref. Amer. Fish. Soc., 1988 p 28

fragilis J. B. P. A. de Lamarck, 1819
(3-5-4-0-4-9-3-16-2-3-2-0-0)
Newfoundland Floater
Ref. Amer. Fish. Soc., 1988 p 28

marginata T. Say, 1817
(3-5-4-0-4-9-3-16-2-3-3-0-0)
Gaspe Floater
Ref. Amer. Fish. Soc., 1988 p 28

couperiana I. Lea, 1840
(3-5-4-0-4-9-3-16-2-4-0-0-0)
Barrel Floater
Ref. Amer. Fish. Soc., 1988 p 28

gibbosa T. Say, 1824
(3-5-4-0-4-9-3-16-2-5-0-0-0)
Inflated Floater
Ref. Amer. Fish. Soc., 1988 p 28

grandis T. Say, 1829
(3-5-4-0-4-9-3-16-2-6-0-0-0)
Giant Floater
Ref. Amer. Fish. Soc., 1988 p 28

imbecillis T. Say, 1829
(3-5-4-0-4-9-3-16-2-7-0-0-0)
Paper Pondshell
Ref. Amer. Fish. Soc., 1988 p 28

implicata T. Say, 1829
(3-5-4-0-4-9-3-16-2-8-0-0-0)
Alewife Floater
Ref. Amer. Fish. Soc., 1988 p 28

kennerlyi I. Lea, 1860
(3-5-4-0-4-9-3-16-2-9-0-0-0)
Western Floater
Ref. Amer. Fish. Soc., 1988 p 28

nuttaliana I. Lea, 1838
(3-5-4-0-4-9-3-16-2-10-0-0-0)
Winged Floater
Ref. Amer. Fish. Soc., 1988 p 28

oregonensis I. Lea, 1838
(3-5-4-0-4-9-3-16-2-11-0-0-0)
Oregon Floater
Ref. Amer. Fish. Soc., 1988 p 28

peggyae R. I. Johnson, 1965
(3-5-4-0-4-9-3-16-2-12-0-0-0)
Florida Floater
Ref. Amer. Fish. Soc., 1988 p 28

suborbiculata T. Say, 1831
(3-5-4-0-4-9-3-16-2-13-0-0-0)
Flat Floater
Ref. Amer. Fish. Soc., 1988 p 28