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Data last updated
Mon 1 Dec 2025
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Bivalvia
| ... | Unionoidea
| Unionidae
| Unioninae
| Unionini
| Unio crassus
nominal species Unio arenarum Locard, 1882
 Unio arenarum Locard, 1882 = Unio crassus
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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