Pareiorhina hyptiorhachis, a new catfish species from Rio Paraiba do Sul basin, southeastern Brazil (Siluriformes, Loricariidae)

Author(s)

da Costa e Silva, Gabriel de Souza ; Roxo, Fabio Fernandes ; Oliveira, Claudio

• Document type: Journal article
• Source: ZOOKEYS; v. N/A, n. 315, p. 12-pg., 2013-01-01.

Abstract

Pareiorhina hyptiorhachis is described from Ribeirao Fernandes and Rio Pomba, Rio Paraiba do Sul basin, Brazil. The new species is distinguished from its congeners (P. brachyrhyncha, P. carrancas, P. cepta, and P. rudolphi) by the presence of a conspicuous ridge on the trunk posterior to the dorsal fin (postdorsal ridge), simple teeth, a completely naked abdomen, a round dorsal profile of the head, greater suborbital depth and greater head width. We discuss the distributional pattern of the new species and its congeners and hypothesize that headwater capture is responsible for the distribution of Pareiorhina species across different watersheds in southeastern of Brazil. (AU)

• FAPESP's process: 12/01622-2 - Analyses of the relationships among the members of the tribe Ancistrini (Siluriformes: Loricariidae) based on DNA sequences
• Grantee: GABRIEL DE SOUZA DA COSTA E SILVA
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 10/01610-9 - Molecular analysis of Hisonotus (Siluriformes: Loricariidae) genus species based on DNA sequences
• Grantee: Fábio Fernandes Roxo
• Support Opportunities: Scholarships in Brazil - Doctorate