Poeciliopsis retropinna (Regan, 1908) .

Shortfin Toothcarp; Olomina, Alumina, Pepesca.

Distribution: Global: Middle America; from southern Costa Rica to western Panama, Pacific drainages; Costa Rica: Tr and Co (Pacific), 0– 940 m.a.s.l., Sec, Pot.

Occurrence and conservation status: Nat, VU.

References: Bussing (1966: 237; listed, information on distribution), Bussing (1987: 150; 1998: 227; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2013: 997; listed, including taxonomic information and distributional data).