attenuata, Heterandria Rosen [D. E.] & Bailey [R. M.] in Rosen 1979:315, Figs. 4, 6, 8, 15, 21, 24, 26 [Bulletin of the American Museum of Natural History v. 162 (art. 5); ref. 22796] Río Candelaria Yalicar halfway between source and mouth, Alta Verapaz, Guatemala. Holotype: AMNH 36332. Paratypes: AMNH 32911 (67), 36333-34 (45, 23); UMMZ 190491 (23, now 17), 197091 (54). •Valid as Heterandria attenuata Rosen & Bailey 1979 -- (Lucinda in Reis et al. 2003:562 [ref. 27061], Lucinda & Reis 2005:40 [ref. 29205], McEachran & DeWitt 2008:52 [ref. 29720]). •Valid as Pseudoxiphophorus attenuatus (Rosen & Bailey 1979) -- (Radda 1985:128 [ref. 31261], Meyer 2015:337 [ref. 34698], Huber 2019:136 [ref. 36941], Barrientos et al. 2023:274 [ref. 41235]). Current status: Valid as Pseudoxiphophorus attenuatus (Rosen & Bailey 1979). Poeciliidae: Poeciliinae. Distribution: Central America: Candelaria Yalicar River drainage, Alta Verapaz (Guatemala) endemic. Habitat: freshwater.