Genus Sphaerium G. A. Scopoli, 1777

(3-4-4-0-9-4-0-4-0-0-0-0-0)
Ref. Amer. Fish. Soc., 1988 p 34

corneum (C. v. Linne, 1758)
(3-4-4-0-9-4-0-4-0-1-0-0-0)
European Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

fabale (T. Prime, 1852)
(3-4-4-0-9-4-0-4-0-2-0-0-0)
River Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

nitidum C. A. Westerlund, 1876
(3-4-4-0-9-4-0-4-0-3-0-0-0)
Arctic Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

occidentale (J. Lewis, 1856)
(3-4-4-0-9-4-0-4-0-4-0-0-0)
Herrington Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

patella (A. A. Gould, 1850)
(3-4-4-0-9-4-0-4-0-5-0-0-0)
Rocky Mountain Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

rhomboideum (T. Say, 1822)
(3-4-4-0-9-4-0-4-0-6-0-0-0)
Rhomboid Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

simile (T. Say, 1817)
(3-4-4-0-9-4-0-4-0-7-0-0-0)
Grooved Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34

striatinum (J. B. P. A. de Lamarck, 1818)
(3-4-4-0-9-4-0-4-0-8-0-0-0)
Striated Fingernailclam
Ref. Amer. Fish. Soc., 1988 p 34