Unionoida | Unionoidea | Unionidae | Unioninae | Unionini | Unio crassus nominal species Unio batavus forma elongata Clessin, 1910
Clessin, 1910, Nachr. Bl. Dtsch. Malak. Ges. 42: 66.
(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
= Unio consentaneus elongatus Clessin — Kobelt & Haas, 1910
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