Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio ampullaceus Locard, 1893
Locard, 1893, Coqu. Eau Douce Saumâtre France: 174.
(homonym of Unio ampullaceus Lea, 1866)
Type(s): LECTOTYPE MNHN_22098, Le Mans (Sarthe).
= 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 Maton et Rackett — Germain, 1931
= Unio (Batavusiana) ampullaceus Locard, 1890 [sic] — Germain, 1904
= Unio (Groupe de l’U. batavus) ampullaceus Nov. sp. — Locard, 1893
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