Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio catalaunicus Locard, 1889
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 133 [27], 192 [86].
‘Coutagne’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 160.
Type(s): LECTOTYPE MNHN_22171, La Marne, à Charenton (Seine).
= 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 crassus var. piscinalis Ziegler — Germain, 1931
= Unio (Groupe de l’U. fusculus) catalaunicus Coutagne — Locard, 1893
= Unio catalaunicus (Cout.) Locard, 1889 — Westerlund, 1890
= Unio (Fusculusiana) catalaunicus Coutagne, Nov. sp. — Locard, 1889
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