Artículos de revistas
A New Species Of Hemigrammus Gill, 1858 (characiformes: Characidae) From The Rio Madeira And Rio Paraguai Basins, With A Redescription Of H. Lunatus
Registro en:
Neotropical Ichthyology. Sociedade Brasileira De Ictiologia, v. 12, n. 2, p. 265 - 279, 2014.
16796225
10.1590/1982-0224-20130176
2-s2.0-84905093630
Autor
Ota R.P.
Lima F.C.T.
Pavanelli C.S.
Institución
Resumen
A new Hemigrammus is described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia 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 Guaporé basins is provided. © 2014 Sociedade Brasileira de Ictiologia. 12 2 265 279 Assine, M.L., A bacia sedimentar do Pantanal mato-grossense (2004) Geologia Do Continente Sul-americano: Evolução Da Obra De Fernando Flávio Marques De Almeida, pp. 62-74. , In: Mantesso-Neto, A. Bartorelli, C. Dal Ré Carneiro & B. B. B. Neves (Eds.), São Paulo, Editora Beca Barthem, R., Goulding, M., Forsberg, B., Cañas, C., Ortega, H., (2003) Aquatic Ecology of the Rio Madre De Dios. 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