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nominal species Unio voltzii var. ursannensis Kobelt & Haas, 1910

Unio voltzii var. ursannensis Kobelt & Haas, 1910 = Unio mancus

(intro'd as intra-sp. of Unio (? requienii var.) voltzii Kobelt & Haas, 1910)
Kobelt & Haas, 1910. Icon. Land- und Süssw.-Moll. 17: 35, pl. 467, fig. 2518.
LECTOTYPE SMF 10701 (by Zilch, 1967: 69), Doubs River, St. Ursanne, Switzerland.

Taxonomic Opinions

+ Unio mancus Lamarck, 1819 — Nagel, 2025: 156, fig. 150.

lectotype SMF 10710/1 (by Zilch, 1967: 69) — Switzerland, “St. Ursanne am Doubs” [47°22’N 007°09.5’E] (coll. W. Kobelt, leg. D. Geyer viii.1908)

paralectotypes SMF 16723/20

+ Unio mancus bourgeticus Bourguignat in Locard, 1882 — Prie, 2012: 434.

+ Unio elongatulus bourgeticus Bourguignat — Haas, 1969: 34.

+ Unio elongatulus bourgeticus Bourguignat in Locard, 1882 — Haas, 1940: 125.

= Unio voltzii var. ursannensis n. sp. — Kobelt & Haas, 1910: 35, pl. 467, figs. 2518.