rhadinaeus, Nemachilus Regan [C. T.] 1906:8 [Journal & Proceedings of the Asiatic Society of Bengal (New Series) v. 2 (no. 1) (art. 2); ref. 15704] Helmand River basin, Seistan. Syntypes: BMNH 1905.11.29.28-29 (2); ZSI F1240/1 (1). Type catalog: Menon & Yazdani 1968:120 [ref. 20743]. Original genus is correctly Nemacheilus. •Valid as Nemacheilus rhadinaeus Regan 1906 -- (Coad 1981:15 [ref. 22348] as Noemacheilus rhadineus, Coad 1995:23 [ref. 23608], Coad 1996:71 [ref. 25297] as rhadineus, Coad 1998:103 [ref. 23869]). •Valid as Paracobitis rhadinaeus (Regan 1906) -- (Bănărescu & Nalbant 1995:443 [ref. 23187], Nalbant & Bianco 1998:115 [ref. 23810], Prokofiev 2009:888 [ref. 30604], Esmaeili et al. 2010:373 [ref. 33391], Mousavi-Sabet et al. 2015:340 [ref. 33744], Jouladeh-Roudbar et al. 2015:886 [ref. 34062], Esmaeili et al. 2017:69 [ref. 35254], Esmaeili et al. 2018:49 [ref. 36089]). •Valid as Paracobitis rhadinaea (Regan 1906) -- (Kottelat 2012:100 [ref. 32367], Freyhof et al. 2014:21 [ref. 33505], Mousavi-Sabet et al. 2019:386 [ref. 36466], Sayyadzadeh et al. 2019:8 [ref. 36900], Jouladeh-Roudbar et al. 2020:186 [ref. 37983], Çiçek et al. 2023:11 [ref. 40326], Çiçek et al. 2024:96 [ref. 40789]). Current status: Valid as Paracobitis rhadinaea (Regan 1906). Nemacheilidae. Distribution: Middle East and South Asia: Helmand River, Sistan basin (Iran, Afghanistan). Habitat: freshwater.