193. Chondrostoma regium (Heckel, 1843)

Common name. King nase

Taxonomy. Original description: Chondochilus regius Heckel, 1843a: 1077 (87) [Orontes and Tigris rivers; syntypes: NMW 52532-35 (2, 2, 2, 1) Kueik (Qweik River) near Aleppo, 52536-38 (2, 1, 2) Tigris near Mosul] .

Revisions. Elvira (1987: 127); Küçük et al. (2023).

Illustrations. Heckel (1843b: pl. 9, fig. 3) as Chondochilus regius, Küçük et al. (2023: 9, fig. 6d).

Distribution in Iran. —Distribution in River Basin: Tigris, Zohreh, Esfahan.―Distribution in Ecoregions: 441-Lower Tigris & Euphrates, 442-Upper Tigris & Euphrates, 449- Esfahan.

Status in Iran. [Native].—Nazok, Dom Siyah.—Listed in previous checklists from Iran by Esmaeili et al. (2017 a, 2018); Jouladeh-Roudbar et al. (2020) and Eagderi et al. (2022).—Iran material: ZM-CBSU.

Conservation. —IUCN: LC.