petschiliensis, Gobius Rendahl [H.] 1924:20 [Arkiv för Zoologi v. 16 (no. 2); ref. 15467] Shan-Hai-Kuan and Pei-Tai-Ho, Hebei [Hubai] Province, China. Syntypes: NRM 10621 (4), 10623 (2). •Synonym of Gymnogobius macrognathos (Bleeker 1860) -- (Berg 1949:1073 [ref. 20662] as macrognathus). •Valid as Gymnogobius petschiliensis (Rendahl 1924) -- (Stevenson 2002:296 [ref. 26489], Hagiwara 2003:38 [ref. 27188], Vasil'eva 2003:S46 [ref. 28444], Kim et al. 2004:56 [ref. 27747], Bogutskaya & Naseka 2004:223 [ref. 28183], Yonezawa et al. 2010:254 [ref. 30902], Motomura et al. 2010:214 [ref. 31256], Matsui et al. 2014:10 [ref. 33344], Parin et al. 2014:488 [ref. 33547], Dyldin & Orlov 2017:190 [ref. 35257], Sonoyama et al. 2020:104 [ref. 37637], Dyldin et al. 2021:36 [ref. 38804], Ito et al. 2021:[9] [ref. 38897], Parenti 2021:298 [ref. 38603]). Current status: Valid as Gymnogobius petschiliensis (Rendahl 1924). Oxudercidae: Gobionellinae. Distribution: East Asia: Japan, Korea, China, Russia. Habitat: freshwater, brackish.