Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio nanus nominal species Unio socardianus Locard, 1882
Bourguignat in Locard, 1882, Prodr. Malac. Franç. 1: 286, 355.
‘Bourguignat’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 134 [28].
‘Bourguignat’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 161.
= 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 crassus Philippson — Germain, 1931
- OMITTED — Simpson, 1914
= Unio (Groupe de l’U. feliciani) socardianus Bourguignat — Locard, 1893
- NO OPINION — Westerlund, 1890
= Unio (Socardiana) socardianus Bourguignat in Locard — Locard, 1889
= Unio (Crassiana) socardianus Bourguignat — Servain, 1882
= Unio (Groupe de l’U. crassus) socardianus Bourguignat, 1879, Mss. — Locard, 1882
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