Bivalvia | ... | Unionidae | Unioninae | Unionini | Unionina | Unio crassus

nominal species Unio diagonalis Drouët, 1881

Unio diagonalis Drouët, 1881 = Unio crassus

(intro'd as syn of Unio batavus var. squamosus Charpentier, 1837)
‘Held’ Drouët, 1881. J. de Conch. 29: 27.

Taxonomic Opinions

+ Unio squamosus Charpentier — Drouët, 1889: 72.

+ Unio squamosus Charpentier, 1837 — Drouët, 1881: 27.