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nominal species Unio euchasmus Castro in Locard, 1899

Unio euchasmus Castro in Locard, 1899 = Unio delphinus

Castro in Locard, 1899. Conchyliol. Portug.: 249.

= Unio delphinus

Taxonomic Opinions

+ 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. hispanus) euchasmus Castro, Nova spec. in collect. Bourg. — Locard, 1899