rhenanus, Cottus Freyhof [J.], Kottelat [M.] & Nolte [A.] 2005:148, Figs. 21-22 [Ichthyological Exploration of Freshwaters v. 16 (no. 2); ref. 28259] Upper reaches of stream Wahnbach at Neunkirchen, 50°51'N, 7°20'E, Germany. Holotype: ZMB 33589. Paratypes: CMK 17844 (20), FSFJ 503 (40), ZMB 33590 (20). Plus non-type material. •Valid as Cottus rhenanus Freyhof, Kottelat & Nolte 2005 -- (Kottelat & Freyhof 2007:516 [ref. 29996], Goto et al. 2014:[11] [ref. 33456], Sideleva et al. 2015:33 [ref. 35276], Sideleva et al. 2018:9 [ref. 36393]). Current status: Valid as Cottus rhenanus Freyhof, Kottelat & Nolte 2005. Cottidae. Distribution: Europe. Habitat: freshwater.