Alfaro cultratus (Regan)

Lucinda, Paulo Henrique Franco & Reis, Roberto E., 2005, Systematics of the subfamily Poeciliinae Bonaparte (Cyprinodontiformes: Poeciliidae), with an emphasis on the tribe Cnesterodontini Hubbs, Neotropical Ichthyology 3 (1), pp. 1-60: 37-38

publication ID

http://doi.org/ 10.1590/S1679-62252005000100001

persistent identifier

http://treatment.plazi.org/id/88324476-FF81-FFBE-6654-F98F296143CB

treatment provided by

Carolina

scientific name

Alfaro cultratus (Regan)
status

 

Composition. Alfaro cultratus (Regan)   and A. huberi (Fowler)  

Distribution. Southern Guatemala, Honduras, Costa Rica, Nicaragua, and Western Panama.

Tribe Brachyrhaphini   + Tribe Priapichthyini   + Tribe Priapellini   + Tribe Heterandriini   + Tribe Gambusiini   + Supertribe Poeciliini   [Clade 125]

Diagnosis. Members of this clade share the following uniquely derived and unreversed features: (1) haemal arch and spine of vertebrae 13-17 in adult males modified into gonapophyses [47-2**]; and (2) lateral process on base of fifth middle analfin radial in adult males large [79-1**].

Additionally, they can be diagnosed by the following not uniquely derived and/or reversed features: (1) epiotic process longer than exoccipital process but not reaching first pleural rib [3- 1*]; (2) preorbital canal partially closed bearing two upper pores and a lower deep groove [9-1]; (3) three well-developed gonapophyses [48-1*]; (4) functional gonapophyses located on vertebrae 14, 15, and 16 [49-1*]; (5) gonactinost complex inclined forward, forming an angle wider than 90 º relative to the body longitudinal axis [68-2*]; (6) basal process on first gonactinost small [69-1*]; (7) second and third gonactinosts partially fused [72-2*]; (8) anal-fin posterior median radials (5 th to last one) in adult males not fused to respective proximal radials [77-0]; (9) one series of subdistal retrorse spines on R4p [114-1*]; (10) eight or more subdistal retrorse spines on R4p[116-1]; and (11) dark stripe present on median portion of dorsal fin [137-1].