atromaculatus, Gnathopogon Nichols [J. T.] & Pope [C. H.] 1927:351 [Bulletin of the American Museum of Natural History v. 54 (art. 2); ref. 5747] Nodoa, Hainan Island, China. Holotype: AMNH 8442. Paratypes: AMNH 11007 (122), ?MCZ 32641 [ex AMNH] (2), ZMA 115792 [ex AMNH] (3). Type catalog: Nijssen et al. 1982:28 [ref. 19236]. •Valid as Gnathopogon atromaculatus Nichols & Pope 1927 -- (Lu et al. 1977:492 [ref. 2850]). •Synonym of Gnathopogon wolterstorffi (Regan 1908) -- (Yu in Kuang et al. 1986:98 [ref. 26639]). •Synonym of Squalidus wolterstorffi (Regan 1908) -- (Jin in Pan et al. 1991:203 [ref. 23876]). •Valid as Squalidus atromaculatus (Nichols & Pope 1927) -- (Zheng et al. 1989:134 [ref. 21202], Zhu 1995:80 [ref. 25213], Yue in Chen et al. 1998:318 [ref. 23878], Kottelat 2001:43 [ref. 25482], Kottelat 2001:81 [ref. 25780], Kottelat 2013:164 [ref. 32989], Zhang et al. 2016:80 [ref. 34477]). Current status: Valid as Squalidus atromaculatus (Nichols & Pope 1927). Gobionidae. Distribution: Southeast Asia: southern China, including Hainan (China). IUCN (2012): Least Concern. Habitat: freshwater.