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

Autor(es)

Roxo, Fabio F. ; Silva, Gabriel S. C. ; Ochoa, Luz E. ; Oliveira, Claudio

• Tipo de documento: Artigo Científico
• Fonte: ZOOKEYS; v. N/A, n. 534, p. 32-pg., 2015-01-01.

Resumo

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 H. insperatus, H. luteofrenatus, H. oliveirai, H. paresi and H. piracanjuba, a lineage unrelated to that containing the type species of the genus Hisonotus (H. 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. (AU)

• Processo FAPESP: 14/06853-8 - Análise das relações filogenéticas e padrões de diversificação de Trichomycteridae (Teleostei, Siluriformes) utilizando sequências de DNA
• Beneficiário: Luz Eneida Ochoa Orrego
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/01622-2 - Analise das relações dos membros da tribo Ancistrini (Siluriformes: Loricariidae) com base em sequências de DNA
• Beneficiário: Gabriel de Souza da Costa e Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/05051-5 - Usando métodos comparativos filogenômicos para entender a diversificação dos peixes da superfamília Loricarioidea
• Beneficiário: Fábio Fernandes Roxo
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado