Sphaerium
Sphaerium (Anglice: fingernail clam) est aquae dulcis genus magnitudinis minimae molluscorum bivalvium familiae Sphaeriidarum.

Nonnulla huius generis species, sicut Sphaerium corneum, super plantas aquatiles scandere possunt, pede longo validoque adhibentes.

Species 
 subgenus Sphaerium Scopoli, 1777
 Sphaerium corneum (Linnaeus, 1758)
 subgenus Nucleocyclas Alimov & Starobogatov, 1968
 Sphaerium nucleus (Studer, 1820)
 Sphaerium ovale (A. Férussac, 1807)
 subgenus Parasphaerium Alimov & Starobogatov, 1968
 Sphaerium nitidum Clessin, 1876
 subgenus Amesoda Rafinesque, 1820
 Sphaerium rivicola (Lamarck, 1818)
 subgenus Cyrenastrum Bourguignat, 1854
 Sphaerium solidum (Normand, 1844)
 without subgenus
 Sphaerium asiaticum (Martens, 1864)
 Sphaerium bequaerti (Dautzenberg & Germain, 1914)
 Sphaerium cornuta
 Sphaerium novaezelandiae Deshayes, 1854
 Sphaerium stuhlmanni Martens, 1897

Notae

Nexus externi 
 http://www.biolib.cz/en/taxon/id3011
 http://webs.lander.edu/rsfox/invertebrates/sphaerium.html

Sphaeriidae
Taxa Scopoli
Taxa 1777
Genera animalium