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New Species of Leporinus from the Rio Tapajos Basin, Brazil, and Redescription of L-moralesi (Characiformes: Anostomidae)

Texto completo
Autor(es):
Birindelli, Jose L. O. [1, 2] ; Britski, Heraldo A. [1] ; Lima, Flavio C. T. [3]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo - Brazil
[2] Univ Estadual Londrina, Dept Biol Anim & Vegetal, BR-86057970 Londrina, PR - Brazil
[3] Univ Estadual Campinas Addo Jose Cardoso, Museu Zool, BR-13083863 Campinas, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Copeia; n. 2, p. 238-247, JUL 3 2013.
Citações Web of Science: 2
Resumo

Leporinus moralesi is a poorly known species from central Amazon basin, Brazil, which is redescribed based on examination of type specimens and additional material. The species is diagnosed by having a dark midlateral stripe running from the vertical through the dorsal fin to the end of the middle caudal-fin rays, 35 to 38 lateral-line scales, five scale rows between the dorsal fin and the lateral line, four or five scale rows between the lateral line and the pelvic fin, 16 scale rows around the caudal peduncle, three teeth on the premaxilla and four on the dentary. Leporinus uatumaensis, described from the Rio Uatuma, a tributary of the Rio Amazonas immediately downstream from Manaus, is a junior synonym of L. moralesi. A lectotype is designated herein for Leporinus muelleri (=L. moralesi). In addition, a new species of Leporinus from the Rio Tapajos, Para, Brazil, is described. The new species shares with Leporinus moralesi the presence of symphyseal tooth of the premaxilla with two cusps of similar size in all examined specimens, and middle caudal-fin rays dark, but differs by the dark midlateral stripe beginning at the snout to the end of the middle caudal-fin rays. (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