nominal species Cyclas perezii Prime, 1870
‘Villa, in litt.’ Prime, 1870, Amer. J. Conch. 5: 155. [nomen nudum]
= Sphaerium lacustre Taxonomic Opinions
+ Sphaerium lacustre (Müller, 1774) — (He & Zhuang, 2013)
+ Sphærium lacustre Férrussac — (Prime, 1895)
+ Sphærium lacustre Férussac — (Prime, 1870)
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