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nominal species Unio tumidus var. natermanni Honigmann, 1914

Unio tumidus var. natermanni Honigmann, 1914 = Unio tumidus

(intro'd as intra-sp. of Unio tumidus Philipsson in Retzius, 1788)
Honigmann, 1914. Abh. Ber. Mus. Magdeburg 2: 7.
SYNTYPE SMF 654, Neajlov River, Comana, Romania.

Taxonomic Opinions

+ Unio tumidus Philipsson, 1788 — Nagel, 2025: 132.

syntype SMF 654/1 — Romania, “Aus dem Flusse Neajlov bei Comana” [44°10.5’N 026°08.5’E] (ex C. Natermann and H.L. Honigmann i.1914, leg. A. Montandon)

syntypes SMF 655/3

syntype SMF 3449/1 (coll. K. Hashagen)

syntype SMF 3699/1 (coll. H. von Ihering)

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

+ Unio tumidus borysthenensis Kobelt, 1879 — Haas, 1940: 129.