The true identity of Bryconops cyrtogaster (Norman), and description of a new species of Bryconops Kner (Characiformes: Iguanodectidae) from the Rio Jari,lower Amazon basin |
| |
| Authors: | Cárlison Silva-Oliveira Cristiano R. Moreira Flávio C. T. Lima Lúcia Rapp Py-Daniel |
| |
| Affiliation: | 1. Instituto Nacional de Pesquisas da Amazônia, Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Manaus, Brazil;2. Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil;3. Museu de Zoologia da Universidade Estadual de Campinas “Adão José Cardoso, Campinas, Brazil;4. Coordenação de Biodiversidade, Coleção de Peixes, Programa de Coleções Científicas e Biologicas, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil |
| |
| Abstract: | Bryconops cyrtogaster, a poorly known species endemic from the Oyapock River at the border between French Guyana and Brazil, is redescribed herein based on examination of available type material, as well as newly collected material. Additionally, a new rheophilic species from the rio Jari rapids, lower Amazon basin, Brazil, is described. The two species belong to the subgenus Creatochanes and are unique among the congeneres for possessing a posteriorly positioned humeral blotch at the level of the sixth and seventh lateral line scales. They differ from each other by meristic and morphometric characters. The list of endemic species in the rio Jari basin is revised. |
| |
| Keywords: | Bryconops melanurus endemism Oyapock River taxonomy waterfalls |
|
|
