FAMILY Odontobutidae Hoese & Gill, 1993 - freshwater sleeper gobies Notes: Odontobutidae Hoese & Gill, 1993:434 [ref. 32171] Odontobutis [Odontobutididae is an incorrect spelling; original stem Odontobut- confirmed by Kottelat & Freyhof 2009:85 [ref. 30320], by Gill & Hoese 2011:67 [ref. 31121] and by Kottelat 2011b:66 [ref. 31660]] GENUS Microdous Li et al., 2018 - freshwater sleeper gobies [=Microdous Li [H.-J.], He [Y.], Jiang [J.-M.], Liu [Z.-Z.] & Li [C.-H.], 2018:8] Notes: [Molecular Phylogenetics and Evolution v. 121; ref. 35731] Masc. Philypnus chalmersi Nichols & Pope 1927. Type by original designation (and monotypic). •Valid as Microdous Li, He, Jiang, Liu & Li, 2018. Current status: Valid as Microdous Li, He, Jiang, Liu & Li, 2018. Odontobutidae. Species Microdous chalmersi (Nichols & Pope, 1927) - Chalmer's freshwater sleeper goby [=Philypnus chalmersi Nichols [J. T.] & Pope [C. H.], 1927:390, Fig. 50] Notes: [Bulletin of the American Museum of Natural History v. 54 (art. 2); ref. 5747] Nodoa, Hainan Island, China. Current status: Valid as Microdous chalmersi (Nichols & Pope, 1927). Odontobutidae. Distribution: Hainan Island, Guangdong and Guangxi, southern China to northern Vietnam. Habitat: freshwater. GENUS Micropercops Fowler & Bean, 1920 - freshwater sleeper gobies [=Micropercops Fowler [H. W.] & Bean [B. A.], 1920:318] Notes: [ref. 1472]. Masc. Micropercops dabryi Fowler & Bean, 1920. Type by original designation (also monotypic). •Valid as Micropercops Fowler & Bean, 1920 -- (Birdsong et al. 1988:183 [ref. 7303], Reshetnikov 1998:124 [ref. 23570], Chen et al. 2002:232 [ref. 26719], Bogutskaya & Naseka 2004:212 [ref. 28183], Iwata 2011:67 [ref. 31725], Kottelat 2013:387 [ref. 32989]). Current status: Valid as Micropercops Fowler & Bean, 1920. Odontobutidae. Species Micropercops borealis Nichols, 1930 - Tsinan freshwater sleeper goby [=Micropercops dabryi borealis Nichols [J. T.], 1930:3, Fig. 2] Notes: [American Museum Novitates No. 402; ref. 16111] Tsinan, Shantung Province, China. Current status: Valid as Micropercops borealis Nichols, 1930. Odontobutidae. Distribution: China. Habitat: freshwater. Species Micropercops cinctus (Dabry de Thiersant, 1872) - Kiang-si freshwater sleeper goby [=Philypnus cinctus Dabry de Thiersant [P.], 1872:179, Pl. 37 (fig. 3)] Notes: [La pisciculture et la pêche en Chine; ref. 12507] Mountain streams in Kiang-si, China. Current status: Valid as Micropercops cinctus (Dabry de Thiersant, 1872). Odontobutidae. Distribution: China and Russia. Habitat: freshwater. Species Micropercops dabryi Fowler & Bean, 1920 - Soochow freshwater sleeper goby [=Micropercops dabryi Fowler [H. W.] & Bean [B. A.], 1920:319, Fig. 2] Notes: [Proceedings of the United States National Museum v. 58 (no. 2338); ref. 1472] Soochow, China. Current status: Valid as Micropercops dabryi Fowler & Bean, 1920. Odontobutidae. Distribution: China. Habitat: freshwater. Species Micropercops hotayensis Mai, 1978 - Ho Tay freshwater sleeper goby [=Micropercops hotayensis Mai [D. Y.], 1978:313, Fig. 138] Notes: [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Ho Tay, northern Vietnam. Current status: Valid as Micropercops hotayensis Mai, 1978. Odontobutidae. Distribution: Vietnam. Habitat: freshwater. Species Micropercops swinhonis (Gunther, 1873) - Shanghai freshwater sleeper goby [=Eleotris swinhonis Günther [A.], 1873:242] Notes: [Annals and Magazine of Natural History (Series 4) v. 12 (no. 69) (art. 31); ref. 2004] Shanghai, China. Current status: Valid as Micropercops swinhonis (Günther, 1873). Odontobutidae. Distribution: China. Habitat: freshwater. GENUS Neodontobutis Chen et al., 2002 - freshwater sleeper gobies [=Neodontobutis Chen [I-S.], Kottelat [M.] & Wu [H.-L.], 2002:230] Notes: [ref. 26719]. Masc. Hypseleotris hainanensis Chen, 1985. Type by original designation. Misspelled once as Odontobitis on p. 230. Appeared first as a nomen nudum in Kottelat 2001:59 [ref. 25482] and Kottelat 2001:153 [ref. 25780]. Gender is feminine according to Gill & Hoese 2011:67 [ref. 31121] but masculine according to Kottelat 2011:67 [ref. 31660]. Spelled Neodontobitis on p. 320. •Valid as Neodontobutis Chen, Kottelat & Wu, 2002 -- (Iwata 2011:69 [ref. 31725], Nguyen & Nguyen 2011:12 [ref. 32048], Kottelat 2013:387 [ref. 32989]). Current status: Valid as Neodontobutis Chen, Kottelat & Wu, 2002. Odontobutidae. Species Neodontobutis aurarmus (Vidthayanon, 1995) - Nong Khai freshwater sleeper goby [=Odontobutis aurarmus Vidthayanon [C.], 1995:236, Figs. 1-5, 7] Notes: [Ichthyological Exploration of Freshwaters v. 6 (no. 3); ref. 21885] Kud Thing marsh, 18°19'N, 104°41'E, Nong Khai Province, Thailand, depth 1.5 meters. Current status: Valid as Neodontobutis aurarmus (Vidthayanon, 1995). Odontobutidae. Distribution: Mekong River basin, Thailand and Laos. Habitat: freshwater. Species Neodontobutis hainanensis (Chen, in Chen & Zheng, 1985) - Hainan freshwater sleeper goby [=Hypseleotris hainanensis Chen [W.], in Chen & Zheng, 1985:76 [English p. 79], Fig. 2, Philypnus macrolepis Wu [H.-L.] & Ni [Y.], 1986:263] Notes: [Journal Sci. Med. Jinan University No. 1; ref. 21325] Pond, Qiongzhong Xian, Hainan Island, China. Current status: Valid as Neodontobutis hainanensis (Chen, 1985). Odontobutidae. Distribution: Hanin Island and Pearl River, China. Habitat: freshwater. (macrolepis) [English p. 264], Fig. 150 [The freshwater and estuarine fishes of Hainan Island; ref. 20214] Changhua River, Qiongzhong, China. Current status: Synonym of Neodontobutis hainanensis (Chen, 1985). Odontobutidae. Habitat: freshwater. Species Neodontobutis macropectoralis (Mai, 1978) - Vietnamese freshwater sleeper goby [=Micropercops macropectoralis Mai [D. Y.], 1978:312, Fig. 137] Notes: [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Northern Vietnam. Current status: Valid as Neodontobutis macropectoralis (Mai, 1978). Odontobutidae. Distribution: Vietnam. Habitat: freshwater. Species Neodontobutis ngheanensis Nguyen & Nguyen, 2011 - Pumat freshwater sleeper goby [=Neodontobutis ngheanensis Nguyen [X. K.] & Nguyen [D. H.], 2011:Figs. 1-2] Notes: [Journal of Biology (Vietnam) v. 33 (no. 1); ref. 32048] Khe Khang stream, Pumat National Park, Nghe An province, Vietnam. Current status: Valid as Neodontobutis ngheanensis Nguyen & Nguyen, 2011. Odontobutidae. Distribution: Khe Khang stream, Pumat National Park, Nghe An province, Vietnam. Habitat: freshwater. Species Neodontobutis tonkinensis (Mai, 1978) - Tonkin freshwater sleeper goby [=Perccottus tonkinensis Mai [D. Y.], 1978:310, Fig. 136] Notes: [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Genus spelled *Percottus* in original. Mountain streams, northern Vietnam and Hainan Island, China. Current status: Valid as Neodontobutis tonkinensis (Mai, 1978). Odontobutidae. Distribution: China and Vietnam. Habitat: freshwater. GENUS Odontobutis Bleeker, 1874 - freshwater sleeper gobies [=Odontobutis Bleeker [P.], 1874:305] Notes: [ref. 437]. Masc. Eleotris obscura Temminck & Schlegel, 1845. Type by original designation (also monotypic). Kottelat & Freyhof 2009:85 [ref. 30320] provide information on the derivation of the family name Odontobutidae. Gender is feminine according to Gill & Hoese 2011:67 [ref. 31121], but it is masculine according to Kottelat 2011:67 [ref. 31660]. •Valid as Odontobutis Bleeker, 1874 -- (Akihito in Masuda et al. 1984:241 [ref. 6441], Iwata et al. 1985 [ref. 6724], Birdsong et al. 1988:202 [ref. 7303], Wu in Pan et al. 1991:437 [ref. 23876], Vidthayanon 1995:240 [ref. 21885], Iwata & Sakai 2002:104 [ref. 25892], Chen et al. 2002:232 [ref. 26719], Kottelat & Freyhof 2009:85 [ref. 30320], Iwata 2011:70 [ref. 31725], Kottelat 2013:388 [ref. 32989]). Current status: Valid as Odontobutis Bleeker, 1874. Odontobutidae. Species Odontobutis haifengensis Chen, in Chen & Zheng, 1985 - Haifeng freshwater sleeper goby [=Odontobutis haifengensis Chen [W.], in Chen & Zheng, 1985:74] Notes: [English p. 79], Fig. 1 [Journal Sci. Med. Jinan University No. 1; ref. 21325] Lianhua Shan, Haifeng Xian, Guangdong Province, China. Current status: Valid as Odontobutis haifengensis Chen, 1985. Odontobutidae. Distribution: Guangdong Province, China. Habitat: freshwater. Species Odontobutis hikimius Iwata & Sakai, 2002 - Hikimi freshwater sleeper goby [=Odontobutis hikimius Iwata [A.] & Sakai [H.], 2002:104, Figs. 1-2] Notes: [Copeia 2002 (no. 1); ref. 25892] Hikimi River, Hikimi-cho, Mino-gun, Shimane Prefecture Japan, 34°52'N, 131°48'E. Current status: Valid as Odontobutis hikimius Iwata & Sakai, 2002. Odontobutidae. Distribution: Japan. Habitat: freshwater. Species Odontobutis interruptus Iwata & Jeon, in Iwata et al., 1985 - Nagil freshwater sleeper goby [=Odontobutis obscura interrupta Iwata [A.] & Jeon [S.-R.], in Iwata, Jeon, Mizuno & Choi, 1985:380, Figs. 1 (E-F), 5A] Notes: [Japanese Journal of Ichthyology v. 31 (no. 4); ref. 6724] Nagil River, of Gum River system, Kumchong-gi, Sayang-myon, Chongyang-gun, Chungchongnam-do, Korea, 36°25'N, 126°50'E. Current status: Valid as Odontobutis interruptus Iwata & Jeon, 1985. Odontobutidae. Distribution: Korea. Habitat: freshwater. Species Odontobutis obscurus (Temminck & Schlegel, 1845) - dark sleeper goby [=Eleotris obscura Temminck [C. J.] & Schlegel [H.], 1845:149, Pl. 77 (figs. 1-3)] Notes: [Fauna Japonica Parts 7-9; ref. 4373] Rivers emptying into Nagasaki Bay, Japan. Current status: Valid as Odontobutis obscurus (Temminck & Schlegel, 1845). Odontobutidae. Distribution: China,