Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | 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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