Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio delphinus
da Silva e Castro, 1885. Bull. Soc. Malac. France 2: 292.
+ Unio delphinus Spengler, 1793 — Araujo et al., 2009
+ Unio pictorum mucidus Morelet, 1845 — Haas, 1969
+ Unio pictorum mucidus Morelet, 1845 — Haas, 1940
= Unio (groupe de l’U. mucidus) simoesi Castro, 1885 — Locard, 1899
= Unio simoesi Silva, 1885 — Westerlund, 1890
= Unio (Mucidusiana) simoesi Castro — Locard, 1889
= Unio simoesi — da Silva e Castro, 1885