regius, Chondochilus Heckel [J. J.] 1843:1077 [87] [Ichthyologie [von Syrien]. In Russegger v. 1 (pt 2); ref. 2066] Orontes and Tigris rivers. Syntypes: NMW 52532-35 (2, 2, 2, 1) Kueik [Quwik river] near Aleppo, 52536-38 (2, 1, 2) Tigris near Mosul. Illustrated by Heckel 1843, Pl. 9 (fig. 3) [ref. 2067]. On p. 87 of separate [ref. 2067]. •Valid as Chondrostoma regium (Heckel 1843) -- (Elvira 1987:127 [ref. 6743], Coad 1991:16 [ref. 15702], Elvira 1991:149 [ref. 20036], Coad 1995:16 [ref. 23608], Coad 1996:71 [ref. 25297], Bogutskaya 1997:151 [ref. 23277], Bogutskaya 1997:170 [ref. 23566], Coad 1998:102 [ref. 23869], Robalo et al. 2007:370 [ref. 28878], Fricke et al. 2007:38 [ref. 29533], Coad 2010:161 [ref. 36620], Esmaeili et al. 2010:369 [ref. 33391], Perea et al. 2010:14 [ref. 31802], Jouladeh-Roudbar et al. 2015:869 [ref. 34062], Çiçek et al. 2015:146 [ref. 35151], Küçük et al. 2017:802 [ref. 35091], Esmaeili et al. 2017:43 [ref. 35254], Eagderi et al. 2017:130 [ref. 35624], Esmaeili et al. 2018:24 [ref. 36089], Al-Moussawi & Afrasiab 2019:36 [ref. 37204], Çiçek et al. 2020:251 [ref. 37644], Çiftci et al. 2020:214 [ref. 37725], Jouladeh-Roudbar et al. 2020:137 [ref. 37983], Bayhan 2021:246 [ref. 40683], Al-Faisal et al. 2022:1405 [ref. 39565], Çiçek et al. 2023:21 [ref. 40616], Çiçek et al. 2023:397 [ref. 40625], Küçük et al. 2023:3 [ref. 39929], Saad et al. 2023:29 [ref. 40501], Çiçek et al. 2024:230 [ref. 40789]). Current status: Valid as Chondrostoma regium (Heckel 1843). Leuciscidae: Leuciscinae. Distribution: Asia Minor, Middle East: Euphrates and Tigris River systems (Turkey, Syria, Iraq and Iran). Habitat: freshwater.