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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Neoplecostomus canastra, a new catfish (Teleostei: Siluriformes) species from upper Rio Parana basin

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Author(s):
Roxo, Fabio F. ; Silva, Gabriel S. C. ; Zawadzki, Claudio H. ; Oliveira, Claudio
Total Authors: 4
Document type: Journal article
Source: Zootaxa; v. 4294, n. 2, p. 226-240, JUL 18 2017.
Web of Science Citations: 3
Abstract

In this study, we describe a new species of Neoplecostomus from corrego Tamborete, municipality of Capitolio, Minas Gerais state, upper rio Parana basin. The new species is distinguished from its congeners by the presence of conspicuous dark spots all over the body. Moreover, the new species can be diagnosed by the absence of moderate keels along each lateral series of plates, presence of developed adipose fin, absence of enlarged, fleshy folds between dentaries, dorsal-fin spinelet larger than dorsal-fin spine, lacking enlarged odontodes along lateral margins of snout and along ridges before eyes, having reduced number of dentary teeth, having two irregular and conspicuous rows of large and transversally-flattened papillae, just posterior to dentary teeth, smaller mandibullary width/head length, smaller Interorbital width/mandibullary width, smaller number of lateral-line plates, higher and lower number of dentary teeth depending of the species compared, absence of a conspicuous sexual dimorphism, absence of a conspicuous horseshoe-shaped light blotch posterior to the supraoccipital, with a central dark area which rarely contacts the edge of the light area, smaller mandibulary width/head length, smaller Interorbital width/Mandibullary width and a greater Caudal peduncle length/Caudal peduncle depth. Furthermore, we used DNA barcoding techniques of 2% threshold criteria and GMYC model to distinguish the new species from its congeners. These molecular techniques were unable to distinguish the new species from N. langeanii and N. selenae from N. botucatu, that were differentiated using external morphology. (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: 15/00691-9 - Harnessing phylogenomic comparative methods to understand the diversification of fishes of the Loricarioidea superfamily
Grantee:Fábio Fernandes Roxo
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 14/05051-5 - Harnessing phylogenomic comparative methods to understand the diversification of fishes of the superfamily Loricarioidea
Grantee:Fábio Fernandes Roxo
Support Opportunities: Scholarships in Brazil - Post-Doctoral