Astyanax joaovitori Oliveira, Pavanelli & Bertaco, 2017
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Family:  Characidae (Characins; tetras), subfamily: Stethaprioninae
Max. size:  7.7 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Upper rio Araguaia and some tributaries in Mato Grosso State, Brazil.
Diagnosis:  Dorsal soft rays (total): 10-11; Anal soft rays: 19; Vertebrae: 33-34. Astyanax joaovitori is distinguished from its congeners belonging to the A. scabripinnis species complex by the following combination of characters: lateral dark stripe beginning immediately behind the upper margin of the opercle; presence of a single vertical humeral dark blotch; a scattered pattern of dark chromatophores below lateral line, at the abdominal region; anal fin with 15 to 20 branched rays; 33 to 36 perforated scales on lateral line; dentary teeth decreasing abruptly in size from the fourth or fifth tooth onwards; and 13 or 14 scales around caudal peduncle (Ref. 116165).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (123251)
Threat to humans:  harmless
Country info:   
 

Entered by: Torres, Armi G. - 22.11.18

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