hainanensis, Hypseleotris Chen [W.] in Chen & Zheng 1985:76 [English p. 79], Fig. 2 [Journal of Science and Medicine of Jinan University No. 1; ref. 21325] Pond, Qiongzhong Xian, Hainan Island, China. Holotype: IHB 76V 9321. Paratypes: IHB 76V 9332 (1). Author is Chen in English translation. •Valid as Hypseleotris hainanensis Chen 1985 -- (Wu in Pan et al. 1991:440 [ref. 23876], Zhu 1995:175 [ref. 25213]). •Valid as Neodontobutis hainanensis (Chen 1985) -- (Chen et al. 2002:230 [ref. 26719], Thacker & Unmack 2005:2 [ref. 28186] with author as Chen & Zheng, Iwata 2011:70 [ref. 31725], Zhang et al. 2016:197 [ref. 34477], Parenti 2021:433 [ref. 38603], Zhou et al. 2022:122 [ref. 39247]). Current status: Valid as Neodontobutis hainanensis (Chen 1985). Odontobutidae. Distribution: East Asia: Hainan Island and Pearl River basin (southern China). Habitat: freshwater.