The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

Search the database pages:

Bivalvia | Sphaerioida | Sphaerioidea | Sphaeriidae | Sphaeriinae | Sphaerium rhomboideum

nominal species Cyclas elegans Adams, 1840

Adams, 1840, Proc. Boston Soc. Nat. Hist. 3(3): pl. 3, fig. 11.

= Sphaerium rhomboideum

Taxonomic Opinions

+ Sphaerium (s.s.) rhomboideum (Say, 1822) — Burch, 1975
+ Sphærium rhomboideum Say — Prime, 1895
+ Sphærium rhomboideum Say — Prime, 1870
+ Sphærium rhomboideum Say — Prime, 1865
= Sphærium elegans Adams — Deshayes, 1854
+ Cyclas rhomboidea Say — Prime, 1853
= Cyclas elegans Adams — Hanley, 1843

Page updated: 08:18:19 Tue 01 Jul 2025