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!
Bivalvia | ... | Sphaeriidae | Sphaeriinae | Sphaerium securis nominal species Cyclas sphaerica Prime, 1853 ‘Anthony’ Prime, 1853. Proc. Boston Soc. Nat. Hist. 4: 275 [as ‘sphærica’].
 ‘Anthony’ Prime, 1865. Smithsonian Misc. Coll. (145): 50, fig. 49. = Sphaerium securis Taxonomic Opinions+ Musculium securis (Prime, 1852) — Burch, 1975 + Sphaerium (Musculium) securis (Prime, 1851) — Clarke, 1973 + Sphaerium securis (Prime, 1851) — Herrington, 1962 + Sphærium securis Prime — Prime, 1895 = Sphærium sphæricum Anthony — Prime, 1870 = Sphærium sphæricum Anthony — Prime, 1865 = Cyclas sphærica Anthony, Mss. — Prime, 1853
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