Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio delphinus nominal species Unio gravatus Drouët, 1893
Drouët, 1893, Unionidae de l’Espagne: 49.
= Unio delphinus Taxonomic Opinions
+ Unio delphinus Spengler, 1793 — Araujo et al., 2009
+ Unio pictorum delphinus Spengler, 1793 — Haas, 1969
+ Unio pictorum delphinus Spengler, 1793 — Haas, 1940
= Unio gravatus Drouët — Kobelt, 1903
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