Systematics of the subfamily Poeciliinae Bonaparte (Cyprinodontiformes: Poeciliidae), with an emphasis on the tribe Cnesterodontini Hubbs
Author
Lucinda, Paulo Henrique Franco
Author
Reis, Roberto E.
text
Neotropical Ichthyology
2005
2005-03-31
3
1
1
60
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000100001&lng=en&tlng=en
journal article
10.1590/S1679-62252005000100001
1982-0224
5417369
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
ยบ
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].