| Texto completo | |
| Autor(es): |
Silva, Gabriel S. C.
;
Ochoa, Luz E.
;
Castro, Ithalo S.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Neotropical Ichthyology; v. 20, n. 2, p. 12-pg., 2022-01-01. |
| Resumo | |
Heptapteridae is a diverse group of catfishes composed of 231 valid species endemic to the Neotropical region, recognized in two subfamilies: Rhamdiinae and Heptapterinae. Phenacorhamdia is a Heptapterinae member and currently has 13 valid species broadly distributed throughout the main river basins of South America. Here we described a new species of Phenacorhamdia from the Xingu River basin. Morphological data were obtained from 30 specimens under 23 morphometric measures and 6 meristic counts. The new species differs from congeners based on the exclusive combination of the following diagnostic characters: atypical mottled colored body and all fins with interradial membranes mottled pigmented; multicuspid teeth; maxillary barbel reaching pectoral-fin origin; lacking a short extension of the first pectoral-fin ray; caudal fin lobes extremely elongated and pointed; and 43-45 total vertebrae. (AU) | |
| Processo FAPESP: | 21/12979-8 - Relações filogenéticas entre gêneros e famílias de Siluriformes usando elementos ultraconservados |
| Beneficiário: | GABRIEL DE SOUZA DA COSTA E SILVA |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |