A new species of Microschemobrycon (Characiformes: Characidae) from Rio Xingu basin, Brazil

Author(s)

Ohara, Willian M. ^{[1, 2]} ; Jerep, Fernado C. ^[3] ; Cavallaro, Marcel R. ^[4]

Affiliation

^[1] Univ Fed Rondonia, Dept Engn Pesca, BR-76916000 Presidente Medici, RO - Brazil

^[2] Univ Sao Paulo, Museu Zool, Av Nazare 481, Ipiranga, Caixa Postal 42494, BR-04299970 Sao Paulo, SP - Brazil

^[3] Univ Estadual Londrina, Ctr Ciencias Biol, Dept Biol Anim & Vegetal, Programa Posgrad Ciencias Biol, BR-86057970 Londrina, PR - Brazil

^[4] Univ Estado Bahia, Dept Educ, Campus 8, Rua Bom Conselho 179, BR-48608230 Paulo Afonso, BA - Brazil

• Document type: Journal article
• Source: Zootaxa; v. 4576, n. 2, p. 326-336, APR 2 2019.
• Web of Science Citations: 0

Abstract

A new species of Microschemobrycon with a restricted distribution was recently discovered in the Rio Curua, Rio Xingu basin, Para, Brazil. Microschemobrycon cryptogrammus new species can be promptly distinguished from all congeners by the presence of a rounded, dark, conspicuous caudal-peduncle blotch and by a subjacent dark midlateral stripe visible in life. Additionally, the new species can be distinguished from all its congeners, except M. elongatus, by the presence of a longitudinal dark stripe along the lower jaw. The new species can be distinguished from M. elongatus by presenting lateral line with 36-38 pored scales, anterior and posterior nostrils coalescend, dark chromatophores concentrated along the ventral margin of the caudal peduncle and by the presence in life of a dark spot at the base of the dorsal-fin origin. (AU)

• FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
• Grantee: Naercio Aquino Menezes
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 13/22473-8 - Endemism and biogeographic analysis of fishes from Madeira River basin
• Grantee: Willian Massaharu Ohara
• Support Opportunities: Scholarships in Brazil - Doctorate