Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio arenarum Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 289, 358.
Bourguignat in Locard, 1889, Contr. Faune Malacol. Franc. 13: 144 [38].
Bourguignat in Locard, 1893, Coqu. Eau Douce Saumâtre France: 171.
Type(s): IDIOTYPE MNHN_22110, Basse Indre (Loire-Inf.).
= 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 (Batavusiana) arenarum Bourguignat in Locard, 1882 — Germain, 1904
= Unio (Groupe de l’U. batavus) arenarum Bourguignat — Locard, 1893
= Unio batavus var. arenarum Bgt. (Loc.), 1882 — Westerlund, 1890
= Unio (Batavusiana) arenarum Bourguignat in Locard — Locard, 1889
= Unio (Bataviana) arenarum Bourg. — Servain, 1888
= Unio (Groupe de l’U. Batavus) arenarum Bourguignat, 1881, Mss. — Locard, 1882
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