Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio batavus var. elongatus Held, 1836
Held, 1836, Isis (Oken) 1836: 306.
(intro'd as intra-sp. of Mya batava Maton & Rackett, 1807; homonym of Unio elongata Lamarck, 1819)
= Unio crassus Taxonomic Opinions
+ Unio crassus cytherea Küster, 1833 — Haas, 1969
+ Unio crassus cytherea Küster, 1833 — Haas, 1940
|