Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio pseudocrassus Haas, 1909
Haas, 1909, Beitr. Kenntn. Mittleleurop. Najadeen, Beilage zu... 41: 29.
= Unio crassus Taxonomic Opinions
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940
= Unio batavus pseudocrassus Haas — Kobelt & Haas, 1910
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