Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio delphinus nominal species Unio sousanus Locard, 1889
Drouët, 1857, Étud. Naïades. France, Unio: pl. 7, fig. 3 [as ‘Unio requienii var. acruata’].
de Joannis, 1859, Ann. Soc. Linn. Maine-et-Loire 3: 291, pl. 11, fig. 2 [as ‘Unio requienii var. acruatus’].
‘Castro’ Locard, 1889, Contr. Faune Malacol. Franc. 13: 165 [59].
‘Castro’ Locard, 1893, Coqu. Eau Douce Saumâtre France: 197, fig. 211 [as ‘souzanus’].
‘Castro’ Locard, 1899, Conchyliol. Portug.: 258.
Type(s): LECTOTYPE MNHN_22545, le Rhône, à Valence (Drôme).
= Unio delphinus Taxonomic Opinions
+ Unio mancus requienii Michaud, 1831 — Prie, 2012
+ Unio delphinus Spengler, 1793 — Araujo et al., 2009
+ Unio elongatulus requienii Michaud, 1831 — Haas, 1969
+ Unio elongatulus requienii Michaud, 1831 — Haas, 1940
+ Unio requieni Michaud — Germain, 1931
= Unio (Cyrtusiana) souzanus [sic] Castro in Locard, 1889 — Germain, 1904
= Unio (groupe de l’U. cyrtus) sousanus Castro in Locard, 1889 — Locard, 1899
= Unio (Groupe de l’U. gestroianus) souzanus [sic] Castro — Locard, 1893
+ Unio arcuatus — Westerlund, 1890
= Unio (Cyrtusiana) sousanus Castro, Nov. sp. — Locard, 1889
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