Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio requieni Rossmässler, 1844
‘Mich.’ Rossmässler, 1844, Icon. Land- und Süssw.-Moll. 2 (6): 29, pl. 57, fig. 757-761.
(misidentified reference to Unio requienii Michaud, 1831)
= Unio crassus Taxonomic Opinions
= Unio (sec. Lymnium) batavus var. requieni Rossmässler, 1844 — Simpson, 1914
+ Unio (sec. Lymnium) batavus (Maton & Rackett, 1807) — Simpson, 1900
+ Unio meretricis ‘Bgt.’ Loc. 1882 — Westerlund, 1890
+ Unio subtilis Drouët — Drouët, 1889
+ Margaron (Unio) pictorum (Retz.) — Lea, 1870
+ Unio requienii Michaud — Küster, 1855
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