Astyanax jordanensis Vera Alcaraz, Pavanelli & Bertaco, 2009
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Family:  Characidae (Characins; tetras), subfamily: Stethaprioninae
Max. size:  7.61 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Rio Jacu and rio das Torres in the lower portions of the rio Jordão drainage, lower rio Iguaçu basin, Paraná, Brazil
Diagnosis:  Dorsal soft rays (total): 10-11; Vertebrae: 34-37. Distinguished from other congeners by the combination of the following characters: anal fin with 13-17 branched rays; lateral line scales 35-38; one humeral spot; dentary teeth abruptly decreasing in size after the fifth tooth; orbital diameter 22.6-29.1% of HL; interorbital width 30.6-35.7% of HL; snout length 25.3-29.7% of HL; predorsal scales 12-15; dorsal procurrent rays 10-12; maxillary teeth 1 or 2; and a conspicuous midlateral band from humeral region to caudal peduncle (Ref. 81203). Description: Dorsal-fin rays i,9, ii,9; anal-fin rays iii,14, iii,15, iii,16), iv,13, iv,14, iv,15, iv,16, iv,17, v,13, v,14, v,15, v,16), v,17; pectoral-fin rays i,9, i,10, i,11, or i,12; pelvic-fin rays i,6 or i,7. Scale series between lateral line and pelvic-fin insertion 5 (Ref. 81203).
Biology:  Feeds on insects and plants (Ref. 81203).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Torres, Armi G. - 27.06.09

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