dayi, Polyacanthus cupanus var. Engmann [P.] 1909:476, Abb. 1 [Blätter für Aquarien- und Terrarienkunde v. 20 (no. 30); ref. 21423] Malacca [in error, probably Kerala, India]. Syntypes: BMNH 1908.10.26.2-3 (2). Köhler first published the name as a nomen nudum: Köhler 1908:395 [ref. 27528]. Also treated as a valid species by Steche 1914: pl. 7 [ref. 21424]. See Kottelat 1994:32 [ref. 21422] for discussion of availability and type locality. •Synonym of Macropodus cupanus (Valenciennes 1831) -- (Talwar & Jhingran 1991:1002 [ref. 20764]). •Valid as Pseudosphromenus dayi (Engmann 1909) -- (Vierke 1986:77 [ref. 36452], Vierke 1988:113 [ref. 36453], Kottelat 1994:32 [ref. 21422], Wakiyama et al. 1997:100 [ref. 25519], Menon 1999:301 [ref. 24904], Britz & Cambray 2001:280 [ref. 25647], Cherian et al. 2001:461 [ref. 26176], Kullander et al. 2015:575 [ref. 33900]). Current status: Valid as Pseudosphromenus dayi (Engmann 1909). Osphronemidae: Macropodusinae. Distribution: India. Habitat: freshwater.