Redescription of Astyanax erythropterus (Holmberg, 1891) (Teleostei: Characiformes: Characidae) from La Plata basin in Argentina

Astyanax erythropterus (Holmberg, 1891) originally described on the basis of one juvenile, is redescribed herein based on juveniles and adults from the type-localiy. The species differs from its congeners by the combination of 11-13 transverse rows scales above lateral line and 8-10 rows below later...

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Bibliographic Details
Published inNeotropical Ichthyology Vol. 8; no. 4; pp. 771 - 786
Main Authors Soneira, Paula(UNNE Facultad de Ciencias Veterinarias Instituto de Ictiología del Nordeste), Casciotta, Jorge(UNLP Museo de La Plata), Almirón, Adriana(UNLP Museo de La Plata), Ciotek, Liliana, Giorgis, Pablo
Format Journal Article
LanguageEnglish
Published Sociedade Brasileira de Ictiologia 2010
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Summary:Astyanax erythropterus (Holmberg, 1891) originally described on the basis of one juvenile, is redescribed herein based on juveniles and adults from the type-localiy. The species differs from its congeners by the combination of 11-13 transverse rows scales above lateral line and 8-10 rows below lateral line; 49-54 perforated scales in the lateral series; iii-v,38-42 anal-fin rays, and dorsal, anal and caudal fins vermilion red in juveniles. The vermilion red coloration of unpaired fins in juveniles of Astyanax is only known in A. correntinus. Astyanax erythropterus (Holmberg, 1891) originalmente descripta sobre la base de un ejemplar juvenil, es redescripta en base a ejemplares juveniles y adultos de la localidad tipo. La especie se diferencia de sus congéneres por la combinación de 11-13 hileras de escamas transversas por encima de la línea lateral y 8-10 hileras debajo de la línea lateral; 49-54 escamas perforadas en las serie lateral; iii-v,38-42 radios en la aleta anal y juveniles con las aletas dorsal, anal y caudal rojo bermellón. Aletas impares rojo bermellón en ejemplares juveniles de Astyanax son solo conocidas en A. correntinus.
Bibliography:http://www.scielo.br/scielo.php?pid=S1679-62252010000400007&script=sci_abstract&tlng=pt
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ISSN:1679-6225
1982-0224
1982-0224
DOI:10.1590/s1679-62252010005000009