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Acta Amazonica

Print version ISSN 0044-5967On-line version ISSN 1809-4392

Acta Amaz. vol.23 no.4 Manaus  1993

http://dx.doi.org/10.1590/1809-43921993234472 

ZOOLOGIA

DESCRIÇÃO DAS LARVAS DE Psectrogaster amazonica E Potamorhina altamazonica (CURIMATIDAE, PISCES) DA AMAZONIA CENTRAL

Larval Description of Psectrogaster amazonica and Potamorhina altamazonica (CURIMATIDAE, PISCES) of Central Amazon

Flavio Lima NASCIMENTO 1  

Carlos ARAÚJO-LIMA 2  

1CPA Pantanal, EMBRAPA, CP-109, Corumbá, MS, 79320-900

2DBA, INPA, CP-478, Manaus, AM, 69011


RESUMO

Foram descritas as larvas de Psectrogaster amazonica e Potamorhina altamazonica, obtidas por fecundação artificial. As características morfológicas, morfométricas foram apresentadas segundo a classificação de estádios de desenvolvimento. As larvas das duas espécies podem ser separadas pelo padrão de pigmentação e número de miômeros.

Palavras-Chave: Amazônia; larvas de peixes; desenvolvimento larval; Characiformes; Potamorhina; Psectrogaster

ABSTRACT

Larvae of Psectrogaster amazonica and Potamorhina altamazonica, obtained by artificial fertilization, were described. The morphologic, morphometric characteristics are presented according to the classification of development. The larvae of the two species can be separated by their pigmentation patterns and myomere numbers.

Key words: Amazon; fish larvae; larval development; Characiforms; Potamorhina; Psectrogaster

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