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Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil
Abstract. Two new species of Pseudancistrus, a genus diagnosed by non-evertible cheek plates and hypertrophied odontodes along the snout margin, are described from two drainages of the Brazilian Shield: Pseudancistrus kayabi from the rio Teles Pires (rio Tapajós basin) and Pseudancistrus asurini fro...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Pensoft Publishers
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337218/ https://www.ncbi.nlm.nih.gov/pubmed/25709528 http://dx.doi.org/10.3897/zookeys.482.6909 |
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author | Silva, Gabriel S. C. Roxo, Fábio F. Oliveira, Claudio |
author_facet | Silva, Gabriel S. C. Roxo, Fábio F. Oliveira, Claudio |
author_sort | Silva, Gabriel S. C. |
collection | PubMed |
description | Abstract. Two new species of Pseudancistrus, a genus diagnosed by non-evertible cheek plates and hypertrophied odontodes along the snout margin, are described from two drainages of the Brazilian Shield: Pseudancistrus kayabi from the rio Teles Pires (rio Tapajós basin) and Pseudancistrus asurini from the rio Xingu. The new species are distinguished from congeners (Pseudancistrus barbatus, Pseudancistrus corantijniensis, Pseudancistrus depressus, Pseudancistrus nigrescens, Pseudancistrus reus, and Pseudancistrus zawadzkii) by the coloration pattern. Pseudancistrus kayabi has dark bars on the dorsal and caudal fins which are similar to that of Pseudancistrus reus from the Caroní River, Venezuela. Pseudancistrus asurini is unique among Pseudancistrus in having whitish tips of the dorsal and caudal fins in juveniles to medium-sized adults. |
format | Online Article Text |
id | pubmed-4337218 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Pensoft Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-43372182015-02-23 Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil Silva, Gabriel S. C. Roxo, Fábio F. Oliveira, Claudio Zookeys Research Article Abstract. Two new species of Pseudancistrus, a genus diagnosed by non-evertible cheek plates and hypertrophied odontodes along the snout margin, are described from two drainages of the Brazilian Shield: Pseudancistrus kayabi from the rio Teles Pires (rio Tapajós basin) and Pseudancistrus asurini from the rio Xingu. The new species are distinguished from congeners (Pseudancistrus barbatus, Pseudancistrus corantijniensis, Pseudancistrus depressus, Pseudancistrus nigrescens, Pseudancistrus reus, and Pseudancistrus zawadzkii) by the coloration pattern. Pseudancistrus kayabi has dark bars on the dorsal and caudal fins which are similar to that of Pseudancistrus reus from the Caroní River, Venezuela. Pseudancistrus asurini is unique among Pseudancistrus in having whitish tips of the dorsal and caudal fins in juveniles to medium-sized adults. Pensoft Publishers 2015-02-11 /pmc/articles/PMC4337218/ /pubmed/25709528 http://dx.doi.org/10.3897/zookeys.482.6909 Text en Gabriel S. C. Silva, Fábio F. Roxo, Claudio Oliveira http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Silva, Gabriel S. C. Roxo, Fábio F. Oliveira, Claudio Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title | Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title_full | Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title_fullStr | Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title_full_unstemmed | Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title_short | Two new species of Pseudancistrus (Siluriformes, Loricariidae) from the Amazon basin, northern Brazil |
title_sort | two new species of pseudancistrus (siluriformes, loricariidae) from the amazon basin, northern brazil |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337218/ https://www.ncbi.nlm.nih.gov/pubmed/25709528 http://dx.doi.org/10.3897/zookeys.482.6909 |
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