A new species of Hemigrammus (Characiformes: Characidae) from western Amazon River basin, Colombia

Author(s)

Albornoz-Garzon, Juan G. ^[1] ; Mendez-Lopez, Alejandro ^[1] ; DoNascimiento, Carlos ^[1] ; Lima, Flavio C. T. ^[2]

Affiliation

^[1] Inst Invest Recursos Biol Alexander von Humboldt, Colecc Biol, Carrera 8, 15-08 Villa de Leyva, Boyaca - Colombia

^[2] Univ Estadual Campinas Adao Jose Cardoso, Museu Zool, Sao Paulo - Brazil

• Document type: Journal article
• Source: Journal of Fish Biology; v. 95, n. 3 JULY 2019.
• Web of Science Citations: 0

Abstract

A new species of Hemigrammus is described from the Amazon Basin near Leticia, Departamento Amazonas, Colombia. In common with some congeners and some Hyphessobrycon spp., the new species colour pattern lacks a humeral blotch but has a caudal-peduncle blotch. It can be distinguished from congeners with a similar colour pattern by having: a relatively deep body (30.2%-39.0% L-S), 20-24 branched anal-fin rays, 6-8 perforated scales of the lateral line, anal-fin base without a conspicuous black stripe, 3-5 maxillary teeth, maxillary teeth with 1-3 cusps, a thin longitudinal midlateral line and a well-defined oval shaped caudal blotch, extending from caudal peduncle into the lower caudal-fin rays. Comparisons with congeners and with Hyphessobrycon species sharing the same general colour pattern are presented. (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