macrostoma, Betta Regan [C. T.] 1910:778, Pl. 78 (fig. 3) [Proceedings of the Zoological Society of London 1909 (pt 4) (art. 2) (for 9 Nov. 1909); ref. 14593] Sarawak state, Borneo, East Malaysia. Holotype (unique): BMNH 1898.11.2.2. •Valid as Betta macrostoma Regan 1910 -- (Vierke 1986:92 [ref. 36452], Vierke 1988:131 [ref. 36453], Witte & Schmidt 1992:327 [ref. 14256], Kottelat et al. 1993:162 [ref. 23448], Kottelat & Lim 1996:248 [ref. 23210], Tan & Ng 2005:71 [ref. 28354], Kottelat 2013:451 [ref. 32989], Sulaiman et al. 2018:37 [ref. 35802]). Current status: Valid as Betta macrostoma Regan 1910. Osphronemidae: Macropodusinae. Distribution: Borneo. Habitat: freshwater.