nominal species Sphaerium transversale Westerlund, 1898
Westerlund, 1898, Acta Soc. Fenn. Fauna Flora 13: ??.
= Sphaerium asiaticum Taxonomic Opinions
+ Sphaerium asiaticum (Martens, 1864) — (Fauna Europaea, 2012)
= Amesoda transversalis (Westerlund, 1898) — (Kantor et al., 2010)
= Amesoda (Asiocyclas) transversale (Westerlund, 1898) — (Starobogatov et al., 2004)
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