Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio nanus nominal species Unio euthymeanus Locard, 1889
Locard, 1889, Contr. Faune Malacol. Franc. 13: 166 [60], 245 [139].
Locard, 1893, Coqu. Eau Douce Saumâtre France: 203.
Type(s): LECTOTYPE MNHN_22202, La Saône à Collonges (Rhône).
= 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 batavus Maton et Rackett — Germain, 1931
= Unio (Groupe de l’U. tumens) euthymeanus Locard — Locard, 1893
= Unio euthymeanus Locard, 1889 — Westerlund, 1890
= Unio (Vinceleusiana) euthymeanus Locard, Mss. — Locard, 1889
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