Astyanax bifasciatus Garavello & Sampaio, 2010
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Family:  Characidae (Characins), subfamily: Incertae sedis
Max. size:  12.92 cm SL (male/unsexed)
Environment:  benthopelagic
Distribution:  South America: Iguaçu basin in Brazil.
Diagnosis:  Dorsal soft rays (total): 9-10; Anal soft rays: 19-24. This species is distinguished from its congeners from the Iguaçu basin by the combination of the following characters: infraorbital 3 deep, but not in contact with preopercle, leaving a narrow naked area between border and preopercle; premaxillary external series with 4 (rarely 5) pentacuspid teeth; non-symphysial teeth in premaxillary internal series heptacuspid; vertical humeral bar with dorsal portion much wider than ventral portion; a faint and diffuse 'post-humeral' spot; lateral line scales 36-40, usually 37 or 38; first branchial arch with 7-9, usually 8, rakers in upper branch and 10-13, usually 12, rakers in lower branch (Ref. 85756).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans: 
Country info:   
 

Entered by: Capuli, Estelita Emily - 02.12.10
Modified by: Torres, Armi G. - 08.04.11

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