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nominal species Unio (limosus) annulatus Kobelt, 1912

Unio (limosus) annulatus Kobelt, 1912 = Unio pictorum

(intro'd as intra-sp. of Unio limosus Nilsson, 1822)
Kobelt, 1912. Icon. Land- und Süssw.-Moll. 18: 28, pl. 492, fig. 2828.
HOLOTYPE SMF 10690, Ilek River, at Bestamak, Kazakhstan.

Taxonomic Opinions

+ Unio pictorum (Linnaeus, 1758) — Nagel, 2025: 88, fig. 5.

holotype SMF 10680/1 — Kazakhstan, “Ilek-Fluss bei Bisch-Tamak, West-Sibirien (südostlich von Orenberg)” [Bestamak, 50°03’N 057°21’E] (coll. O. Boettger ex Museum St. Petersburg 1890)

+ Unio pictorum (Linnaeus, 1758) — He & Zhuang, 2013: 123.

= Unio annulatus Kobelt, 1912 — Kantor et al., 2010: 329.

+ Unio pictorum schrenkianus Clessin — Haas, 1969: 25.

+ Unio pictorum schrenckianus [sic] Clessin, 1880 — Haas, 1940: 122.

= Unio (s.s.) pictorum var. annulatus Kobelt, 1912 — Zhadin, 1938: 78, sp. 1e.