https://zookeys.pensoft.net/article/23157/


A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae)

Authors

Erick Cristofore Guimarães1,5, Pâmella Silva De Brito2,5, Leonardo Manir Feitosa3, Luís Fernando Carvalho-Costa4, Felipe Polivanov Ottoni1,2,5,6

1 Universidade Federal do Maranhão, Programa de Pós-Graduação em Biodiversidade e Conservação. Av. dos Portugueses 1966,
Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil
2 Universidade Federal do Maranhão, Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazônia Legal. Av.
dos Portugueses 1966, Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil
3 Universidade Federal de Pernambuco, Programa de Pós-Graduação em Biologia Animal. Av. Professor Moraes Rego 1235, Cidade
Universitária, CEP: 50670-901, Recife, PE, Brazil
4 Universidade Federal do Maranhão, Departamento de Biologia, Laboratório de Genética e Biologia Molecular, Av. dos Portugueses
1966, Cidade Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil
5 Universidade Federal do Maranhão, Laboratório de Sistemática e Ecologia de Organismos Aquáticos, Centro de Ciências Agrárias
e Ambientais, Campus Universitário, CCAA, BR-222, KM 04, S/N, Boa Vista, CEP 65500-000, Chapadinha, MA, Brazil
6 Universidade Federal do Maranhão, Programa de Pós-Graduação em Oceanografia. Av. dos Portugueses 1966, Cidade
Universitária do Bacanga, CEP 65080-805, São Luís, MA, Brazil
Corresponding author: Erick Cristofore Guimarães (erick.ictio@yahoo.com)
Academic editor: J. Maldonado  |  Received 3 February 2018  |  Accepted 7 May 2018  |  Published 7 June 2018
http://zoobank.org/07277DB7-7563-4712-AC3F-E940B1B4AC27
Citation: Guimarães EC, De Brito PS, Feitosa LM, Carvalho-Costa LF, Ottoni FP (2018) A new species of Hyphessobrycon Durbin from northeastern Brazil: evidence from morphological data and DNA barcoding (Characiformes, Characidae). ZooKeys 765: 79–101. https://doi.org/10.3897/zookeys.765.23157



Figure 2.
Hyphessobrycon piorskii sp. n. A CICCAA 00698, paratype, 26.9 mm SL, Brazil: Maranhão State: Munim River basin; living specimen photographed immediately after collection B CICCAA 00089, paratype, 25.2 mm SL, Brazil: Maranhão State: Munim River basin; living specimen photographed immediately after collection (photographed by Felipe Ottoni).

Abstract

A new species of Hyphessobrycon is described for the upper Munim and Preguiças river basins, northeastern Brazil, supported by morphological and molecular species delimitation methods. This new species belongs to the Hyphessobrycon sensu stricto group, as it has the three main diagnostic character states of this assemblage: presence of a dark brown or black blotch on the dorsal fin, absence of a black midlateral stripe on its flank and the position of Weberian apparatus upward horizontal through dorsal margin of operculum. Our phylogenetic analysis also supported the allocation of the new species in this group; however, it was not possible to recover the species sister-group. Pristella maxillaris and Moenkhausia hemigrammoides were recovered as the sister-clade of the Hyphessobrycon sensu stricto group.



Figure 1.
Hyphessobrycon piorskii sp. n. A CICCAA 00695, holotype, 25.9 mm SL, Brazil: Maranhão State: Munim River basin B CICCAA 00881, paratype, 29.4 mm SL, Brazil: Maranhão State: Munim River basin (photographed by Felipe Ottoni).



Figure 8.
Collecting sites of Hyphessobrycon piorskii sp. n. A stream at the Anapurus municipality B stream at Mata de Itamacaoca C stream at Mata de Itamacaoca D stream at Mata Fome, Barreirinhas municipality (photographed by Felipe Ottoni).

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