Aspectos de sistemática e morfologia de Schizodon fasciatus Agassiz, 1829, Rhytiodus microlepis Kner, 1859 e Rhytiodus argenteofuscus Kner, 1829 (Osteichthyes, Characoidei, Anostomidae) do lago Janauacá - Amazonas ()

Abstract

Variations in the colour patterns at different stages of development of Schizodon fasciatus, Rhytiodus microlepis and R. argenteofuscus are detailed. Various meristic and morphological characters, are analysed to give a more complete characterization of these species. The identification of the strange post-larval juvenile of R. microlepis once considered to be a separate genera within the Anostomidae, is discussed.