unimaculatus, Parophiocephalus Popta [C. M. L.] 1905:184 [Notes from the Leyden Museum v. 25 (no. 4) (art. 15); ref. 3549] Howong R and Kajan River, Borneo, Indonesia. Lectotype: ZMA 114486. Syntypes: (52?) ZMA 114486 (1). Type catalog: Nijssen et al. 1982:105 [ref. 19236]. Lectotype selected by Hui & Ng 2005:92 [ref. 28354]. •Valid as Betta unimaculata (Popta 1905) -- (Vierke 1986:99 [ref. 36452], Vierke 1988:142 [ref. 36453], Witte & Schmidt 1992:327 [ref. 14256], Kottelat et al. 1993:163 [ref. 23448], Kottelat & Lim 1996:248 [ref. 23210], Tan & Ng 2005:45 [ref. 28354], Kottelat 2013:453 [ref. 32989]). Current status: Valid as Betta unimaculata (Popta 1905). Osphronemidae: Macropodusinae. Distribution: Borneo, Indonesia. Habitat: freshwater.