isthmensis, Poeciliopsis Regan [C. T.] 1913:997, Pl. 100 (fig. 3-4); Fig.171b [Proceedings of the Zoological Society of London 1913 (pt 4) (art. 58); ref. 3653] Colón, (Atlantic) Panama. Syntypes: (14) BMNH 1913.1.22.14-15, 1913.3.6.11-20 (10). •Synonym of Phallichthys pitieri (Meek 1912) -- (Meyer 2015:173 [ref. 34698]). •Synonym of Phallichthys amates (Miller 1907) -- (Rosen & Bailey 1963:140 [ref. 7067], Lucinda in Reis et al. 2003:565 [ref. 27061], Huber 2019:85 [ref. 36941]). Current status: Synonym of Phallichthys amates (Miller 1907). Poeciliidae: Poeciliinae. Habitat: freshwater.