entmema, Tylognathus Fowler [H. W.] 1934:134, Figs. 101-102 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 86; ref. 1417] Silom Canal, Bangkok, Thailand. Holotype (unique): ANSP 59092. Type catalog: Monkolprasit 1969:14 [ref. 25088], Böhlke 1984:75 [ref. 13621]. •Mention in genus Henicorhynchus -- (Kottelat 1984:803 [ref. 11440]). •Synonym of Henicorhynchus caudimaculatus (Fowler 1934) -- (Rainboth 1996:111 [ref. 22772] as entema). •Synonym of Cirrhinus siamensis (Sauvage 1881) -- (Roberts 1997:196 [ref. 23550]). •Synonym of Henicorhynchus siamensis (Sauvage 1881) -- (Kottelat 2001:54 [ref. 25780]). •Synonym of Gymnostomus siamensis (Sauvage 1881) -- (Kottelat 2013:109 [ref. 32989]). •Valid as Henicorhynchus entmema (Fowler 1934) -- (Ciccotto & Page 2020:493 [ref. 37710], Taki et al. 2021:164 [ref. 39830]). Current status: Valid as Henicorhynchus entmema (Fowler 1934). Cyprinidae: Labeoninae. Distribution: Southeast Asia: Mekong River basin, Thailand, Laos, Cambodia and southern Vietnam. Habitat: freshwater.