Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio batavus distinguendus C. Boettger, 1912
C. Boettger, 1912, Arch. Naturg. 78: 305, pl. 1, fig. 7.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807)
= Unio crassus Taxonomic Opinions
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940
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