Brachyrhaphis roseni Bussing, 1988 .

Rosen’s Livebearer; Olomina, Alumina, Pepesca, Olomina de Rosen.

Distribution: Global: Middle America; from southeastern Costa Rica to western Panama, Pacific drainages; Costa Rica: Co (Pacific), 20–100 m.a.s.l., Sec, Pot.

Occurrence and conservation status: Nat, NT.

References: Bussing (1987: 137, as Brachyrhaphis sp.; 1998: 205; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology; 1988: 81; detailed description, including illustrations, information on distribution and ecology) and Angulo et al. (2013: 996; listed, including taxonomic information and distributional data).