The true identity of Bryconops cyrtogaster (Norman), and description of a new species of BryconopsKner (Characiformes: Iguanodectidae) from the Rio Jari, lower Amazon basin

Author(s)

Silva-Oliveira, Carlison ; Moreira, Cristiano R. ; Lima, Flavio C. T. ; Py-Daniel, Lucia Rapp

• Document type: Journal article
• Source: Journal of Fish Biology; v. 97, n. 3, p. 9-pg., 2020-08-18.

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 subgenusCreatochanesand 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. (AU)

• FAPESP's process: 13/20936-0 - Systematics of tetras (genera Hemigrammus, Hyphessobrycon, Thayeria, Parapristella e Bryconella), with emphasis on the species from northern cis-Andean South America
• Grantee: Flávio César Thadeo de Lima
• Support Opportunities: Scholarships in Brazil - Young Researchers
• FAPESP's process: 11/51532-7 - Systematics of tetras (genera Hemigrammus, Hyphessobrycon, Thayeria, Parapristella, and Bryconella), with emphasis on the species from the northern cis-andean South America.
• Grantee: Flávio César Thadeo de Lima
• Support Opportunities: Research Grants - Young Investigators Grants