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!
Bivalvia | ... | Unioninae | Unionini | Unio mancus nominal species Unio frayssianus Locard, 1889  Bourguignat in Locard, 1889. Contr. Faune Malacol. Franc. 13: 155 [49], 227 [121].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 189.
Type(s): SYNTYPES MNHN_22226, Étang de Meyranne (Bouches-du-Rhône).
= Unio mancus Taxonomic Opinions+ Unio mancus requienii Michaud, 1831 — Prie, 2012 + Unio elongatulus requienii Michaud, 1831 — Haas, 1969 + Unio elongatulus requienii Michaud, 1831 — Haas, 1940 + Unio requieni Michaud — Germain, 1931 = Unio (Groupe de l’U. gallicus) frayssianus Coutagne — Locard, 1893 = Unio frayssianus (Cout.) Loc. — Westerlund, 1890 = Unio (Gallicusiana) frayssianus Coutagne, Nov. sp. — Locard, 1889
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