| Registro completo |
| Provedor de dados: |
Neotropical Ichthyology
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| País: |
Brazil
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| Título: |
A new miniature of Xenurobryconini (Characiformes: Characidae) from the rio Tapajós basin, Brazil
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| Autores: |
Mendonça,Marina Barreira
Peixoto,Luiz Antônio Wanderley
Dutra,Guilherme Moreira
Netto-Ferreira,André Luiz
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| Data: |
2016-01-01
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| Ano: |
2016
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| Palavras-chave: |
Key to species
Miniaturization
Ostariophysi
Sexual dimorphism
Taxonomy
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| Resumo: |
Abstract A new species of Xenurobrycon isdescribed from tributaries of the rio Tapajós, Pará, Brazil. It is diagnosed from all congeners by the dark color of the posterior half of both caudal-fin lobes, the presence of infraorbitals one, two, and three, the presence of a set of lamellar processes on eighth principal caudal-fin ray of mature males, the presence of bony hooks similar in size or decreasing posteriorly on last unbranched and first 9-12 branched anal-fin rays of mature males, the presence of only conical teeth on both jaws, the lack of the adipose fin and the presence of 15-18 predorsal scales. The description of the new species increases the number of species in Xenurobrycon to six. An updated key to the species of the genus is provided.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100004
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| Editor: |
Sociedade Brasileira de Ictiologia
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| Relação: |
10.1590/1982-0224-20150057
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| Formato: |
text/html
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| Fonte: |
Neotropical Ichthyology v.14 n.1 2016
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| Direitos: |
info:eu-repo/semantics/openAccess
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