| Texto completo | |
| Autor(es): |
Ota, Rafaela P.
;
Lima, Flavio C. T.
;
Pavanelli, Carla S.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Neotropical Ichthyology; v. 12, n. 2, p. 15-pg., 2014-04-01. |
| Resumo | |
A new Hemigrammus is described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondonia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lower. The new species can be easily diagnosed from H. lunatus, the sympatric and morphologically most similar congener, by the shape of humeral blotch and the number of gill rakers. Data of the type material of both Hemigrammus lunatus and H. maxillaris, as well as extensive examination of specimens, allowed us to conclude that H. maxillaris is a junior subjective synonym of H. lunatus. A redescription of H. lunatus, as well as a formal restriction of its type locality, is provided. A putative monophyletic group within Hemigrammus, composed by H. barrigonae, Hemigrammus lunatus, H. machadoi new species, and H. ulreyi, named Hemigrammus lunatus group, is proposed based on overall body morphology and color pattern. Additionally, a discussion on the biogeographical relationships between the rio Paraguai and rio Guapore basins is provided. (AU) | |
| Processo FAPESP: | 13/20936-0 - Sistemática das piabas (gêneros Hemigrammus, Hyphessobrycon, Thayeria, Parapristella e Bryconella), com ênfase nas espécies do norte da América do Sul cis-andina |
| Beneficiário: | Flávio César Thadeo de Lima |
| Modalidade de apoio: | Bolsas no Brasil - Jovens Pesquisadores |
| Processo FAPESP: | 11/51532-7 - Sistemática das piabas (gênero Hemigrammus, Hyphessobrycon, Parapristella e Bryconella), com ênfase nas espécies do norte da América do Sul cisandina |
| Beneficiário: | Flávio César Thadeo de Lima |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |