A New Species of Cyphocharax Fowler ( Teleostei: Curimatidae) from the Rio Xingu, Brazil

被引：0

作者：

Netto-Ferreira, Andre L. ^{[1
]}

Nogueira, Acacio F. ^{[2
]}

Melo, Bruno F. ^{[3
]}

Dutra, Guilherme M. ^{[4
]}

机构：

[1] Univ Fed Rio Grande do Sul, Dept Zool, Porto Alegre, RS, Brazil

[2] Inst Tecnol Vale, Desenvolvimento Sustentavel, Belem, Brazil

[3] Amer Museum Nat Hist, Dept Ichthyol, New York, NY 10024 USA

[4] Univ Estado Minas Gerais, Passos, Brazil

来源：

AMERICAN MUSEUM NOVITATES | 2024年 / 4007期

基金：

巴西圣保罗研究基金会;

关键词：

CHARACIFORMES CURIMATIDAE; AMAZON BASIN; OSTARIOPHYSI; DIVERSITY;

D O I：

暂无

中图分类号：

X176 [生物多样性保护];

学科分类号：

090705 ;

摘要：

A new species of the curimatid genus Cyphocharax is described from the Rio Xingu, Amazon basin. This species is readily distinguished from congeners by the presence of a dark, round blotch on the caudal peduncle and by the high density of iridophores on the ventrolateral portion of the body, resulting in a strongly countershaded pattern. Molecular phylogenetic analyses support the recognition of the new species and suggest that it is nested within the Curimatella alburna clade. Ancestral state reconstruction suggests independent evolutionary origins of the blotched caudal peduncle and the countershaded ventrolateral flanks among curimatid fishes.

引用

页数：19

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