Overview

Comprehensive Description

Astyanax chico ZBK :

CI-FML 3837, 13 ex., 52.5-80.4 mm, Argentina , Salta , Orán , La Bambú , Río Bermejo basin, Arroyo El Oculto.

  • J. M. Mirande, G. Aguilera, M. D. L. M. Azpelicueta (2006): Astyanax endy (Characiformes: Characidae), a new fish species from the upper Río Bermejo basin, northwestern Argentina. Zootaxa 1286, 57-68: 59-59, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:89EB739D-FFDE-44FD-AD0F-9E51CC3392FD
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Distribution

San Francisco River basin, northwestern Argentina.
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South America: rio San Franciso basin in Argentina.
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Physical Description

Diagnostic Description

Distinguished from other species of the genus by the following combination of characters: one maxillary tooth with 2 to 4 cusps; teeth of inner premaxillary row expanded distally, deep dentary bearing 7 teeth decreasing in size anteroposteriorly; males with hooks in all fins; 35-39 perforated scales in lateral series; iii-iv, 19-24 anal fin rays; and one humeral spot vertically elongated, a second lateral spot may be faint or well developed (Ref. 55793).
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Ecology

Habitat

Environment

benthopelagic; freshwater
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Conservation

Threats

Not Evaluated
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