Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio bouchardi Locard, 1889
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 149 [43].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 180.
(new name for Unio arcuata Bouchard-Chantereaux, 1838)
Type(s): LECTOTYPE FIGURED SPECIMEN, ditches of Saint-Omer, fed by the Aa.
= Unio crassus Taxonomic Opinions
+ Unio crassus Philipsson in Retzius, 1788 — Lopes-Lima et al., 2024
+ Unio mancus moquinianus Dupuy, 1843 — Prie, 2012
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969
+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940
+ Unio consentaneus var. moquini — Germain, 1931
= Unio (Groupe de l’U. ater) bouchardi Bourguignat — Locard, 1893
+ Unio arcuatus — Westerlund, 1890
= Unio (Ateriana) bouchardi Bourguignat, Nov. sp. — Locard, 1889
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