Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio berthelini Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 290, 359.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 137 [31].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 163.
Type(s): IDIOTYPE MNHN_22132, 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 mancus var. amnicus form riparius Pfeiffer — Germain, 1931
= Unio (Groupe de l’U. amnicus) berthelini Bourguignat — Locard, 1893
= Unio berthelini (Bgt.) Locard, 1882 — Westerlund, 1890
= Unio (Amnicusiana) berthelini Bourguignat in Locard — Locard, 1889
= Unio (Amniciana) berthelini Bourg. — Servain, 1888
= Unio (Groupe de l’U. fusculus) berthelini Bourguignat, 1879, Mss. — Locard, 1882
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