巴西新古盆地上里约热内卢盆地一新种(Teleostei:特征:特征科)

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 : 2019-05-01 DOI:10.1635/053.166.0114

Nelson Flausino, Flávio C. T. Lima

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引用次数: 0

摘要

摘要描述了巴西马托格罗索州新古盆地上bbb10的Creagrutus一新种。这个新物种可以通过一系列特征与它的同类区分开来，这些特征包括:背鳍大部分是黑色的，在中下尾鳍上有一个黑色的斜斑，只有两排前颌牙齿。以前只在巴西Tocantins盆地上发现的Creagrutus mucipu与新古盆地上里约热内卢的新种共生。

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A new Creagrutus from the upper rio Xingu basin, Brazil (Teleostei: Characiformes: Characidae)

ABSTRACT. A new species of Creagrutus is described from the upper rio Xingu basin, Mato Grosso state, Brazil. The new species can be distinguished from its congeners by a combination of characters that includes dorsal fin mostly black, a dark oblique blotch on middle and upper-inferior caudal-fin rays, and presence of only two rows of premaxillary teeth. Creagrutus mucipu, formerly known only from the upper rio Tocantins basin in Brazil, is recorded herein as occurring syntopically with the new species in the upper rio Xingu basin.

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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.