9. Cyprinion acinaces Banister & Clarke, 1977 ―Arabian Lotak― Endemic

Taxonomy. Original description: Cyprinion acinaces Banister & Clarke, 1977:123, fig. 13; Pls. 2, 5, 6 [ Qasam area, Wadi Hadramut, southern Yemen; Holotype: BMNH 1976.4.7.1 ]. Synonyms: Cyprinion acinaces hijazi Krupp, 1983 .

Status in the Arabian Peninsula. Recorded from Yemen in original description by Banister & Clarke (1977); confirmed by Alkahem & Behnke (1983); Krupp (1983); Krupp (1985); Borkenhagen & Krupp (2013), Hamidan & Shobrak (2019), and Freyhof et al. (2020).

General distribution. Western Saudi Arabia and Yemen. Habitat: freshwater.

Distribution in the Arabian Peninsula. Yemen: Wadi Ḩaḑramawt drainage; Saudi Arabia: Wadis Hediyah, Sulayma, Ain al-Hammah and Wadis near Jaddah, (Freyhof et al. 2020).

Economic importance. Locally consumed, but of no commercial importance.

Conservation. Least Concern (LC).