Overview

Comprehensive Description

Astyanax tupi ZBK :

MACN-Ict 8646, holotype , 70.1 mm, Argentina , Misiones , arroyo Cuñapirú Chico.

  • 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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Astyanax tupi ZBK :

MACN-Ict 8646 , holotype , 70.1 mm, Argentina , Misiones , Arroyo Cunapiru Chico .

  • Juan Marcos Mirande, Gastón Aguilera, María de las Mercedes Azpelicueta (2007): A new species of Astyanax (Characiformes: Characidae) from the endorheic Río Salí basin, Tucumán, northwestern Argentina. Zootaxa 1646, 31-39: 33-33, URL:http://www.zoobank.org/urn:lsid:zoobank.org:pub:D83848ED-9E15-4C2C-A228-0288B2CAFBB9
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Distribution

Tributary of Paraná River, Argentina.
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South America: endemic to Argentina (Ref. 56308).
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Physical Description

Morphology

Dorsal soft rays (total): 13; Vertebrae: 35
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Size

Max. size

7.3 cm SL (male/unsexed; (Ref. 55798))
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Diagnostic Description

Differs from other species of the genus by the combination of the following characters: long pectoral fins always surpassing pelvic-fin origin; anal fin origin at level of a vertical through fifth or sixth dorsal fin rays; one supraopercular and two humeral spots on flanks; two or three maxillary teeth; 35-38 perforated scales in the lateral series; and 24-27 branched anal fin rays. Distinguishes further from most of its congeners by having deep body (36.9-42.6% SL); large eye (10.2-11.9% SL); maxillary length, 100.0-136.6% interorbital width); and presence of 24-25 gill rakers on first branchial arch (Ref. 55798).Description: dorsal-fin rays iii,9; anal-fin rays iv-vi,24-27; pectoral-fin rays i,12-14; pelvic-fin rays i,7 (Ref. 55798).
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MACN-Ict 8646 , holotype , 70.1 mm, Argentina , Misiones , Arroyo Cunapiru Chico .

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Juan Marcos Mirande

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Ecology

Habitat

Environment

benthopelagic; freshwater
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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