maculicervix, Rhinogobius Chen [I-S.] & Kottelat [M.] 2000:82, Figs. 1-4 [Ichthyological Exploration of Freshwaters v. 11 (no. 1); ref. 24446] Nam Youan at ford south of Ban Muang Mon, 21°19'28"N, 101°10'19"E, Louang Namtha Province, Mekong basin, Laos. Holotype: ZRC 45294. Paratypes: CMK 14313 (13), 14341 (33); LARRI uncat. (8); ZRC 45295 (7). •Valid as Pseudorhinogobius maculicervix (Chen & Kottelat 2000) -- (Endruweit 2024:137 [ref. 41040]). •Valid as Rhinogobius maculicervix Chen & Kottelat 2000 -- (Kottelat 2001:157 [ref. 25780], Chen et al. 2008:341 [ref. 29895], Kottelat 2013:425 [ref. 32989], Huang et al. 2016:[8] [ref. 34339], Takahashi & Okazaki 2017:[2] [ref. 35171], Suzuki et al. 2017:82 [ref. 35202], Endruweit 2018:307 [ref. 36165], Fu et al. 2021:9573 [ref. 39347], Parenti 2021:360 [ref. 38603]). Current status: Valid as Rhinogobius maculicervix Chen & Kottelat 2000. Oxudercidae: Gobionellinae. Distribution: Southeast Asia: middle and upper Mekong River basin (Laos and Yunnan/China). Habitat: freshwater.