The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves)

FM(U)otW(aolcb) is the web version of the MUSSEL Project Database. Follow the links to browse the data or use the custom Google search field. Either way, you win!

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Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus

nominal species Unio occidentalis Locard, 1889

‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 149 [43], 220 [114].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 180.
‘Bourguignat’ Locard, 1899, Conchyliol. Portug.: 220.
(homonym of Unio occidentalis Conrad, 1836)
Type(s): LECTOTYPE MNHN_22424, Balbigny (Loire).

= 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 consentaneus (Ziegler) Rossmässler — Germain, 1931
- OMITTED — Simpson, 1914
= Unio (groupe de l’U. ater) occidentalis Bourguignat in Locard, 1889 — Locard, 1899
= Unio (Groupe de l’U. ater) occidentalis Bourguignat — Locard, 1893
= Unio occidentalis (Bgt.) Loc., 1889 — Westerlund, 1890
= Unio (Ateriana) occidentalis Bourguignat, Nov. sp. — Locard, 1889

Page updated: 08:29:57 Tue 01 Jul 2025