Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio nanus

Coutagne in Locard, 1882. Prodr. Malac. Franç. 1: 285, 355.
‘Coutagne’ Locard, 1889. Contr. Faune Malacol. Franc. 13: 128 [22].
‘Coutagne’ Locard, 1893. Coqu. Eau Douce Saumâtre France: 155, fig. 169.
Type(s): SYNTYPE MNHN_22363, Saulcy-sur-Meurthe (Vosges) [written on shell].
+ 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. amnicus Ziegler — Germain, 1931
+ — Simpson, 1914
= Unio (Melasiana) melas Coutagne — Germain, 1904
= Unio (Groupe de l’U. melas) melas Coutagne — Locard, 1893
+ — Westerlund, 1890
= Unio (Melasiana) melas Coutagne — Locard, 1889
= Unio (Groupe de l’U. crassus) melas Coutagne, 1881, Mss. — Locard, 1882