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!
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Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus nominal species Unio batavus var. pusillus Rossmässler, 1844 Rossmässler, 1844. Icon. Land- und Süssw.-Moll. 2 (6): ??.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio pusillus Lea, 1840) = Unio crassus Taxonomic Opinions+ Unio amnicus (Z.) Rssm. — Westerlund, 1890 + Unio batavus var. crassus Retz. — Clessin, 1877 + Unio (Lymnium) batavus var. L nanus Lam. — Moquin-Tandon, 1855
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