litoperas, Heterandria Rosen [D. E.] & Bailey [R. M.] in Rosen 1979:320, Figs. 4, 6, 9, 15, 21, 24 [Bulletin of the American Museum of Natural History v. 162 (art. 5); ref. 22796] Tributary of Río Cahabón, 1 kilometer north-northwest of Lanquín, Río Polochic system, Alta Verapaz, Guatemala. Holotype: AMNH 36328. Paratypes: AMNH 24489 (9), 24492 (33), 35003 (59), 36329-31 (2, 1, 16), 37666 (19); UMMZ 146106-07 (35), 190586 (2), 190753 (12), 197134 (38); USNM 114258 (3), 134585-86 (38, 152). Type catalog: Parenti et al. 1999:11 [ref. 24072]. •Valid as Heterandria litoperas Rosen & Bailey 1979 -- (Parenti et al. 1999:11 [ref. 24072], Lucinda in Reis et al. 2003:562 [ref. 27061], Lucinda & Reis 2005:40 [ref. 29205], McEachran & DeWitt 2008:52 [ref. 29720]). •Valid as Pseudoxiphophorus litoperas (Rosen & Bailey 1979) -- (Radda 1985:128 [ref. 31261], Morales-Cazan & Albert 2012:22 [ref. 31911], Meyer 2015:345 [ref. 34698], Huber 2019:138 [ref. 36941], Barrientos et al. 2023:274 [ref. 41235]). Current status: Valid as Pseudoxiphophorus litoperas (Rosen & Bailey 1979). Poeciliidae: Poeciliinae. Distribution: Central America: central Guatemala endemic. Habitat: freshwater.