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).

Published as part of Esmaeili, Hamid Reza & Hamidan, Neshat, 2023, Inland fishes of the Arabian Peninsula: Review and a revised checklist, pp. 201-226 in Zootaxa 5330 (2) on page 208, DOI: 10.11646/zootaxa.5330.2.2, http://zenodo.org/record/8249316