Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

New species of Pseudanos Winterbottom, 1980 (Characiformes: Anostomidae), with notes on the taxonomy of P. gracilis and P. trimaculatus

Autor(es):
Birindelli, Jose L. O. [1] ; Lima, Flavio C. T. [2] ; Britski, Heraldo A. [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo - Brazil
[2] Univ Estadual Campinas Adao Jose Cardoso, Museu Zool, BR-13083863 Sao Paulo - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Zootaxa; n. 3425, p. 55-68, AUG 16 2012.
Citações Web of Science: 3
Resumo

A new species of Pseudanos (Characiformes, Anostomidae) is described from the Rio Negro in Brazil, and the Rio Casiquiare and Rio Atabapo, in Venezuela. Specimens of the new species were previously mistakenly identified as Pseudanos gracilis. The new species is diagnosed by having three branchiostegal rays (vs. four in P. gracilis and most specimens of P. winterbottomi), dark transversal bars on dorsum absent (vs. present in P. trimaculatus), dark spots present on the center of each body scale, forming conspicuous, straight dark lines (vs. dark spots absent in P. gracilis and in some specimens of P. trimaculatus), four midlateral dark blotches on body (vs. usually two, sometimes three or four in P. trimaculatus, or body lacking midlateral blotches and presenting instead a broad midlateral stripe in P. winterbottomi), angle of dorsal and ventralmost radii of body scales between 40 degrees and 90 degrees (vs. angle between 110 degrees and 180 degrees in P. gracilis and P. trimaculatus), and cranial fontanel opened along its entire length (vs. cranial fontanel partially closed in P. trimaculatus). Type specimens and extensive additional material of Pseudanos gracilis and P. trimaculatus were examined and comments on the taxonomy of both species are provided. Pseudanos irinae is herein considered a junior synonym of P. trimaculatus. In addition, an updated key to identification of valid species of Pseudanos is presented. (AU)

Processo FAPESP: 10/51250-9 - Relações filogenéticas do gênero Leporinus Agassiz (Ostarophysi, Characiformes, Anostomidae)
Beneficiário:José Luís Olivan Birindelli
Linha de fomento: Bolsas no Brasil - Pós-Doutorado
Processo FAPESP: 07/02978-7 - Sistemática do gênero Brycon (Teleostei: Ostariophysi: Characiformes: Characidae): revisão taxonômica das espécies da América do Sul transandina e América Central e do complexo Brycon pesu e filogenia e biogeografia de Bryconinae
Beneficiário:Flávio César Thadeo de Lima
Linha de fomento: Bolsas no Brasil - Pós-Doutorado