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nominal species Unio tumidus var. okae Kobelt & Haas, 1910

Unio tumidus var. okae Kobelt & Haas, 1910 = Unio tumidus

Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 58, index, pl. 480, figs. 2565-2566.
(renamed Unio tumidus var. kobeltianus Zhadin, 1938; homonym of Unio crassus var. okae Kobelt & Haas, 1910; intro'd as intra-sp. of Unio tumidus Philipsson in Retzius, 1788)

Taxonomic Opinions

+ Unio tumidus borysthenensis Kobelt, 1879 — Haas, 1969: 22.

+ Unio (s.s.) tumidus var. kobeltianus Zhadin, 1938 — Zhadin, 1938: 82.