F. Gallo-Cardozo, M. Maldonado, M. Careaga, F. M. Carvajal-Vallejos
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引用次数: 0
Abstract
A new species of piranha, in the genus Serrasalmus (Characiformes, Serrasalmidae), is described from tributaries of the upper Madeira River drainage (Bolivian Amazon Basin). This new species exhibits a similar caudal-fin color like that observed in S. hollandi, and review of the literature suggested that former studies have misidentified these two species. The new species can be diagnosed morphologically from other congeners, but genetic variation of the COI sequence data showed little difference (~1%) from similar, morphologically recognized species. Since Serrasalmus species are widespread and morphologically difficult to identify, a key for identifying Bolivian species of this genus is presented.
摘要：本文描述了马德拉河上游支流（玻利维亚亚马逊河流域）中的一种食人鱼新种，该种食人鱼属于Serrasalmus属（鱼形目，Serrasalmidae）。该新物种的尾鳍颜色与 S. hollandi 的尾鳍颜色相似。从形态上看，该新种可与其他同系物种相鉴别，但 COI 序列数据的遗传变异显示，该新种与形态学上公认的相似物种差异很小（约 1%）。由于 Serrasalmus 物种分布广泛，且形态上难以识别，因此本文提出了一个识别该属玻利维亚种的关键方法。
期刊介绍：
Journal of Ichthyology is an international peer-reviewed journal published in collaboration with the Russian Academy of Sciences. It covers original studies in fish taxonomy, evolution, molecular biology, morphology, species diversity, zoological geography, genetics, physiology, ecology, behavior, reproduction, embryology, invasions, and protection. Some problems of applied ichthyology are also covered. The journal welcomes manuscripts from all countries in the English or Russian language.
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