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nominal species Unio allenianus Castro in Locard, 1899

Unio allenianus Castro in Locard, 1899 = Unio delphinus

Castro in Locard, 1899. Conchyliol. Portug.: 255.

Taxonomic Opinions

+ Unio delphinus Spengler, 1793 — Araujo et al., 2009: 45.

+ Unio pictorum mucidus Morelet, 1845 — Haas, 1969: 29.

+ Unio pictorum mucidus Morelet, 1845 — Haas, 1940: 123.

= Unio (groupe de l’U. rostrata) allenianus Castro, Nova spec. in collect. Bourg. — Locard, 1899: 255.