| Page last updated
Wed 1 October 2025 |
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!
Search the database pages:
Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio occidentalis Locard, 1889 = 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 + — 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
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‘Bourguignat’ 
