文章标题巴西帕尔州卡辛博山狐尾虫属一新种(特征:狐尾虫科)

IF 2 4区生物学 Q1 ZOOLOGY

Neotropical Ichthyology Pub Date : 2023-01-01 DOI:10.1590/1982-0224-2023-0058

Ian Solon Bortoloci Ito, Lenice Souza-Shibatta, Marcos Venturieri, José L. O. Birindelli

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引用次数: 0

摘要

摘要在巴西亚马逊河Tapajós流域的rio Teles Pires支流rio brao Norte中描述了一种新的小型Leporinus，并根据分子数据提出了其系统发育位置。该新种被诊断为Anostomidae中的一种，其前颌骨上有三颗单尖牙齿，近端有四颗牙齿，尾柄周围有12排鳞片，躯干上有黑色斑点，身体上有大的非中外侧黑色斑点，胸鳍和腹鳍之间侧线的腹侧区域有一到两个大斑点。DNA条形码分析表明，该新种与八爪Leporinus octomaculatus亲缘关系较近。此外，在改变地区的中间形态样本被确定为新种与L. octomaculatus之间的推定杂交。新物种在国际水族市场上很受欢迎，其出现区域在过去几年中受到人为变化的影响。

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A new species of Leporinus (Characiformes: Anostomidae) from the Serra do Cachimbo, Pará State, Brazil

Abstract A new small-sized species of Leporinus is described from rio Braço Norte, a tributary of rio Teles Pires, in the Tapajós drainage in the Brazilian Amazon, and its phylogenetic position is proposed based on molecular data. The new species is diagnosed among Anostomidae by having three unicuspid teeth on the premaxilla and four on the dentary, 12 scale rows around the caudal peduncle, dark blotches on the trunk, and large non-midlateral dark blotches over the body, with one or two large blotches in region ventral to the lateral line between the pectoral and pelvic fins. DNA Barcode sequences suggest that the new species is closely related to Leporinus octomaculatus. In addition, samples of intermediate forms in altered areas are herein identified as putative hybrids between the new species and L. octomaculatus. The new species is popular in the international aquarium market, and its area of occurrence has been affected by anthropogenic changes in the last years.

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来源期刊

Neotropical Ichthyology 生物-动物学

CiteScore

2.80

自引率

17.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Neotropical Ichthyology is the official journal of the Sociedade Brasileira de Ictiologia (SBI). It is an international peer-reviewed Open Access periodical that publishes original articles and reviews exclusively on Neotropical freshwater and marine fishes and constitutes an International Forum to disclose and discuss results of original research on the diversity of marine, estuarine and freshwater Neotropical fishes. -Frequency: Four issues per year published only online since 2020, using the ‘rolling pass’ system, which posts articles online immediately as soon as they are ready for publication. A searchable and citable Digital Object Identifier (DOI) is assigned to each article immediately after online publication, with no need to await the issue’s closing. -Areas of interest: Biology, Biochemistry and Physiology, Ecology, Ethology, Genetics and Molecular Biology, Systematics. -Peer review process: The Editor-in-Chief screens each manuscript submitted to Neotropical Ichthyology to verify whether it is within the journal’s scope and policy, presents original research and follows the journal’s guidelines. After passing through the initial screening, articles are assigned to a Section Editor, who then assigns an Associate Editor to start the single blind review process.