Oxynoemacheilus bergianus (Derjavin, 1934)

Taxonomy. Original description: Nemachilus bergianus Derjavin, 1934: 109, fig. 8 [Kisum village, Shah-rud River, Safid Rud basin, Iran; holotype (unique): ZIN 25433].— Iraq synonyms: Nemacheilus bergianus Derjavin, 1934; Orthrias bergianus (Derjavin, 1934); Barbatula erdali Erk’akan, Nalbant & Özeren, 2007; Oxynoemacheilus erdali (Erk’akan, Nalbant & Özeren, 2007).—Revisions: None.—Illustration: Sayyadzadeh et al. (2016), Freyhof et al. (2022).

Status in Iraq. First record from Iraq by Freyhof et al. (2022).—Iraq material: None.

Distribution and habitat. Distribution in Iraq: Tigris river basin.—General distribution: Eurasia: Caspian Sea, Urmia, Tigris-Euphrates, and Namak Lake basins.—Habitat: This species inhabits fast-flowing streams and rivers with gravel or rocky substrates. Freshwater.

Economic importance. No commercial importance.

Conservation. Conservation Status in Iraq: Unknown.—IUCN: LC (IUCN, 2023).—Threats: ABS, CON, HAB.— Moderate sensitivity to human activities.—Keystone species.—Decline status: Decreasing.—Moderate priority for conservation action.