A new Hyphessobrycon (Characiformes: Characidae) from the rio Xingu Basin, Brazil

IF 0.5 4区环境科学与生态学 Q4 BIODIVERSITY CONSERVATION

Proceedings of the Academy of Natural Sciences of Philadelphia Pub Date : 2017-11-01 DOI:10.1635/053.166.0103

T. C. Faria, F. Lima, D. Bastos

引用次数: 4

Abstract

ABSTRACT. A new species of Hyphessobrycon is described from the middle and lower rio Xingu Basin, Pará state, Brazil. The new species can be distinguished from all congeners by the combination of a large caudal peduncle blotch (largest in mature males), absence of humeral blotch, and largest teeth on dentary, inner premaxillary and maxillary relatively compressed with 6–9 cusps. The new species is compared to three other congeners with similar color pattern: Hyphessobrycon diastatos Dagosta, Marinho & Camelier 2014, Hy. negodagua Lima & Gerhard 2001, and Hy. parvellus Ellis 1911, and one species of Hemigrammus, He. rodwayi Durbin 1909.

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巴西rio Xingu盆地的一个新的Hyphessobrycon（Characiformes:Characidae）

摘要。本文报道了巴西帕拉州里奥辛古盆地中下段的一个新种。这种新物种可以通过一个大的尾柄斑点（成熟雄性最大）、没有肱骨斑点以及牙齿、上颌前内侧和上颌上最大的牙齿相对压缩有6-9个尖端来与所有同类物种区分开来。将该新物种与其他三种具有相似颜色模式的同类物种进行了比较：Hyphessobrycon astratos Dagosta，Marinho&Camelier 2014，Hy.negodagua Lima&Gerhard 2001，和Hy.parvelus Ellis 1911，以及一种半球形目He。罗德瓦伊·德尔宾1909年。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Academy of Natural Sciences of Philadelphia 生物多样性保护-生物多样性保护

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期刊介绍： The Proceedings (ISSN 0097-3157) has been published continuously since 1841. Many volumes are still available in their original printings. Early volumes are unbound, constituting two or three issues per year. Quantities of some volumes may be limited. Early volumes may have slightly soiled cover sheets, but the text blocks are perfect.