| Page last updatedWed 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! 
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 Bivalvia | ... | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio suborbicularis var. minor Locard, 1889 Locard, 1889. Contr. Faune Malacol. Franc. 13: 127 [21]. [nomen nudum]Westerlund, 1890. Fauna Paläarct. Binnenconch. 2(7): 84. [nomen nudum]
= Unio crassus Taxonomic Opinions+ Unio lagnysicus [sic] (Bgt.) Locard, 1882 — Westerlund, 1890 + Unio (Nanusiana) lagnysicus [sic] Bourguignat in Locard — Locard, 1889 |