MUSSELpdb
Taxonomy
Species & Genus Richness of
freshwater mussels
by Taxonomy
Species & Genus Richness of
freshwater bivalves
by Family
Geography
Species Richness & Endemism of
freshwater mussels
by Geography
Data last updated
Wed 04 February 2026
Bivalvia | Sphaeriida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium nitidum
nominal species Cyclas tenuis Prime, 1852
Cyclas tenuis Prime, 1852 = Sphaerium nitidum
Prime, 1852. Proc. Boston Soc. Nat. Hist. 4: 161.
Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 285.
Prime, 1865. Smithsonian Misc. Coll. (145): 47, fig. 44.
Taxonomic Opinions
+ Sphaerium (s.s.) nitidum Westerlund, 1876 — Burch, 1975
+ Sphærium occidentale Prime — Prime, 1895
= Sphærium tenue Prime — Prime, 1870
= Sphærium tenue Prime — Prime, 1865
= Cyclas tenuis Nobis — Prime, 1853
