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Page last updated
Thu 3 September 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 | ... | Unionidae | Unioninae | Unionini | Unionina | Unio nanus

nominal species Unio macrorhynchus Locard, 1882

Bourguignat in Locard, 1882. Prodr. Malac. Franç. 1: 292, 361.
‘Bourguignat’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 132 [26].
‘Bourguignat’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 158, fig. 172.
Type(s): LECTOTYPE MNHN_22326 (by Graf, 2011: 486), lac du Bourget.

= Unio nanus

Taxonomic Opinions

+ Unio nanus Lamarck, 1819 — Lopes-Lima et al., 2024

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1969

+ Unio crassus batavus (Maton & Rackett, 1807) — Haas, 1940

= Unio mancus var. macrorhynchus Bourguignat — Germain, 1931

= Unio (Groupe de l’U. macrorhynchus) macrorhynchus Bourguignat — Locard, 1893

= Unio macrorhynchus (Bgt.) Locard, 1882 — Westerlund, 1890

= Unio (Sandriana) macrorhynchus Bourguignat in Locard — Locard, 1889

= Unio (Groupe de l’U. sandrii) macrorhynchus Bourguignat, 1879, Mss. — Locard, 1882
 
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