Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio materniacus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 143 [37], 203 [97].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 168, fig. 182.
Type(s): LECTOTYPE MNHN_22347, la Somme à Abbeville.
= 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
- OMITTED — Simpson, 1914
= Unio materniacus Loc., 1889 — Rochebrune, 1903
= Unio (Groupe de l’U. batavus) materniacus Locard — Locard, 1893
= Unio materniacus Locard, 1889 — Westerlund, 1890
= Unio (Batavusiana) materniacus Locard, Nov. sp. — Locard, 1889
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