Two new species of Jupiaba (Characiformes: Characidae) from the rio Tapajos and rio Madeira drainages, Brazil, with an identification key to species of the genus

Author(s)

Netto-Ferreira, Andre L. ; Zanata, Angela M. ; Birindelli, Jose L. O. ; Sousa, Leandro M.

• Document type: Journal article
• Source: Zootaxa; v. N/A, n. 2262, p. 16-pg., 2009-10-12.

Abstract

Two new species of Jupiaba Zanata are described from Brazil. Jupiaba iasy, new species, is described from rio Teles Pires and rio Jamanxim, tributaries of rio Tapajos, and from rio Aripuana, in the rio Madeira drainage. It is distinguished from its congeners by its color pattern consisting of a single posteriorly displaced dark crescent-shaped humeral blotch, situated over the first 5 to 7 lateral line scales, and an inconspicuous dark spot at the end of caudal peduncle. It also differs from all remaining Jupiaba for the following combination of characters: 34-36 lateral line scales, 19-21 branched anal-fin rays, 8-10 predorsal scales arranged in a regular row, 6 horizontal series of scales above and 4 series below lateral line, body depth 32.3-36.1% of SL, and absence of filamentous rays in the first dorsal and anal-fin rays. Jupiaba paranatinga, new species, is described from rio Teles Pires, tributary of rio Tapajos. It is distinguished by having 34-35 lateral line scales, two vertically elongated humeral blotches, a conspicuous caudal spot at the end of the caudal peduncle, extending over 8-10 median caudal-fin rays, eye diameter 43.7-46.9% of HL, and relatively low body depth (31.3-35.5% of SL). Additionally, comments on the putative relationships of the new species with their congeners and an updated key to the species of the genus are provided. (AU)

• FAPESP's process: 06/04162-1 - Taxonomic review and phylogeny of Astrodoradinae (Siluriformes, Doradidae)
• Grantee: Leandro Melo de Sousa
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 06/04161-5 - Taxonomic review and interspecific relationships of Lebiasininae (Ostariophysi, Characiformes)
• Grantee: André Luiz Netto Ferreira
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 02/06459-0 - Phylogenetic systematics, evolution and classification of living and fossil rays, with an analysis of historical biology of freshwater stingrays of the family Potamotrygonidae (Chondrichthyes: Batoidea)
• Grantee: Marcelo Rodrigues de Carvalho
• Support Opportunities: Research Grants - Young Investigators Grants