Jenynsia luxata Aguilera, Mirande, Calviño & Lobo, 2013
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Family:  Anablepidae (Four-eyed fishes, onesided livebearers & white-eye), subfamily: Anablepinae
Max. size:  4.43 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Río Tajamar or río Cajón basin and small flooded pools not connected but near to río Urueña basin in Argentina.
Diagnosis:  Dorsal soft rays (total): 8-9; Anal soft rays: 10-10; Vertebrae: 28-30. This species is distinguished from all congeners by the medial processes of left and right pelvic bones relatively reduced, not overlapping each other at ventral midline. It can be further diagnosed by the following combination of characters: four to six regular rows of small circular spots of dark brown chromatophores on body side, more apparent along caudal peduncle; absence of a swelling between the urogenital opening and the anterior base of the anal fin in females; 12-16 predorsal scales; absence of a large dorsal convex expansion at subdistal segments of right half of sixth anal-fin ray of adult males; eye diameter of females 26.1-33.1% HL; and absence of a distinct rounded spot on dorsal pectoral-fin base (Ref. 94152).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (124695)
Threat to humans:  harmless
Country info:   
 

Entered by: Torres, Armi G. - 07.12.13

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