gillii, Xiphophorus Kner [R.] 1863:224, "Fig. 9" (unpublished) [Sitzungsberichte der Königlich Bayerischen Akademie der Wissenschaften zu München 1863, v. 2; ref. 5002] Río Chagres, Panama. Holotype (unique): ZSM 176 [old collection] destroyed in WWII. Non-types: NMW 21608-09 (2). Type catalog: Neumann 2006:279 [ref. 28925]. Also appeared as new in Kner & Steindachner 1864:25, Pl. 4 (fig. 1) [ref. 2649]. •Synonym of Poecilia sphenops Valenciennes 1846 -- (Rosen & Bailey 1963:49 [ref. 7067]). •Valid as Poecilia gillii (Kner 1863) -- (Villa 1982:134 [ref. 36708], Bussing 1987:145 [ref. 22927], Rodriguez 1997:673 [ref. 23266], Bussing 1998:219 [ref. 24179], Meyer et al. 2002:49 [ref. 26721], Poeser 2003:48 [ref. 26769] as a valid subspecies, Poeser 2003:163 [ref. 26783], Poeser 2003:360 [ref. 27075], Lucinda in Reis et al. 2003:567 [ref. 27061], Lucinda & Reis 2005:45 [ref. 29205], Matamoros et al. 2009:14 [ref. 31241], Poeser 2011:420 [ref. 31550], McMahan et al. 2013:447 [ref. 32422], Angulo et al. 2013:996 [ref. 33194], Meyer 2015:223 [ref. 34698], Ho et al. 2016:Fig. 1 [ref. 34400] in subgenus Mollienesia, Palacios et al. 2016:232 [ref. 34629] in subgenus Mollienesia, DoNascimiento et al. 2017:102 [ref. 35633], Huber 2019:101 [ref. 36941], Angulo et al. 2020:6 [ref. 37425], Angulo et al. 2023:60 [ref. 40676] as cf. gillii, Valenzuela et al. 2023:96 [ref. 40815] as aff. gillii). Current status: Valid as Poecilia gillii (Kner 1863). Poeciliidae: Poeciliinae. Distribution: Central America, northwestern South America: Atlantic and Pacific drainages in Costa Rica, Panama and Colombia. Introduced in Ecuador. Habitat: freshwater.