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Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)

Abstract. The genus Hisonotus was resurrected as a member of the tribe Otothyrini (actually subfamily Otothyrinae). However, phylogenetic studies based on morphological and molecular data showed that Hisonotus is not monophyletic and independent lineages can be identified, such as the group composed...

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Autores principales: Roxo, Fábio F., Silva, Gabriel S. C., Ochoa, Luz E., Oliveira, Claudio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4669939/
https://www.ncbi.nlm.nih.gov/pubmed/26668550
http://dx.doi.org/10.3897/zookeys.534.6169
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author Roxo, Fábio F.
Silva, Gabriel S. C.
Ochoa, Luz E.
Oliveira, Claudio
author_facet Roxo, Fábio F.
Silva, Gabriel S. C.
Ochoa, Luz E.
Oliveira, Claudio
author_sort Roxo, Fábio F.
collection PubMed
description Abstract. The genus Hisonotus was resurrected as a member of the tribe Otothyrini (actually subfamily Otothyrinae). However, phylogenetic studies based on morphological and molecular data showed that Hisonotus is not monophyletic and independent lineages can be identified, such as the group composed of the species Hisonotus insperatus, Hisonotus luteofrenatus, Hisonotus oliveirai, Hisonotus paresi and Hisonotus piracanjuba, a lineage unrelated to that containing the type species of the genus Hisonotus (Hisonotus notatus). Herein, based in molecular and morphological data, a new genus is described to accommodate the lineage mentioned above, into which are also added three new species. This new genus can be distinguished from other genera of Otothyrinae by the following combination of characters: (1) a pair of rostral plates at the tip of the snout; (2) two large pre-nasal plates just posterior to the rostral plates; (3) a supra-opercular plate that receives the laterosensory canal from the compound pterotic before the preopercle; (4) a well developed membrane at anal opening in females; and (5) a V-shaped spinelet. A key to species of Curculionichthys is provided.
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spelling pubmed-46699392015-12-14 Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae) Roxo, Fábio F. Silva, Gabriel S. C. Ochoa, Luz E. Oliveira, Claudio Zookeys Research Article Abstract. The genus Hisonotus was resurrected as a member of the tribe Otothyrini (actually subfamily Otothyrinae). However, phylogenetic studies based on morphological and molecular data showed that Hisonotus is not monophyletic and independent lineages can be identified, such as the group composed of the species Hisonotus insperatus, Hisonotus luteofrenatus, Hisonotus oliveirai, Hisonotus paresi and Hisonotus piracanjuba, a lineage unrelated to that containing the type species of the genus Hisonotus (Hisonotus notatus). Herein, based in molecular and morphological data, a new genus is described to accommodate the lineage mentioned above, into which are also added three new species. This new genus can be distinguished from other genera of Otothyrinae by the following combination of characters: (1) a pair of rostral plates at the tip of the snout; (2) two large pre-nasal plates just posterior to the rostral plates; (3) a supra-opercular plate that receives the laterosensory canal from the compound pterotic before the preopercle; (4) a well developed membrane at anal opening in females; and (5) a V-shaped spinelet. A key to species of Curculionichthys is provided. Pensoft Publishers 2015-11-11 /pmc/articles/PMC4669939/ /pubmed/26668550 http://dx.doi.org/10.3897/zookeys.534.6169 Text en Fábio F. Roxo, Gabriel S. C. Silva, Luz E. Ochoa, 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
Roxo, Fábio F.
Silva, Gabriel S. C.
Ochoa, Luz E.
Oliveira, Claudio
Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title_full Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title_fullStr Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title_full_unstemmed Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title_short Description of a new genus and three new species of Otothyrinae (Siluriformes, Loricariidae)
title_sort description of a new genus and three new species of otothyrinae (siluriformes, loricariidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4669939/
https://www.ncbi.nlm.nih.gov/pubmed/26668550
http://dx.doi.org/10.3897/zookeys.534.6169
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