Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio lancelevei Locard, 1893
Locard, 1893, Bull. Soc. Sci. Nat. Elbeuf 12: 1.
Locard, 1893, Coqu. Eau Douce Saumâtre France: 170.
Type(s): SYNTYPE MNHN_22305, le Seine au nord d. Rouen.
= Unio crassus Taxonomic Opinions
+ Unio crassus Philipsson in Retzius, 1788 — Lopes-Lima et al., 2024
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940
+ Unio batavus var. baraceus de Joannis — Germain, 1931
= Unio (Groupe de l’U. batavus) lancelevei Locard — Locard, 1893
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