Integrative taxonomy reveals a new species of Cyphocharax (Characiformes: Curimatidae) from the Upper Paraíba do Sul River basin, Brazil

IF 2 4区生物学 Q1 ZOOLOGY

Neotropical Ichthyology Pub Date : 2022-01-01 DOI:10.1590/1982-0224-2022-0017

G. Dutra, G. Vita, Péricles Vinícius Gentile, L. Ochoa, A. L. Netto‐Ferreira

引用次数: 0

Abstract

Abstract A new species of Cyphocharax is described from the Upper Paraíba do Sul River basin, São Paulo, Brazil based on integrated morphological and molecular delimitation criteria. It is morphologically distinguished from its congeners by the presence of a round, dark blotch at the midlength of the caudal peduncle not extending to the proximal portions of the median caudal-fin rays, 19–20 circumpeduncular scales, 34–41 perforated lateral-line scales, 6–7 longitudinal scale rows above and below the lateral line, greatest body depth corresponding to 34.7–39.9% of standard length (SL), and the caudal peduncle depth corresponding to 13.3–15.2% of SL. The lowest genetic distances between the new species and other congeners are: 2.5% from C. gilbert, followed by 3.0% from C. santacatarinae, and 3.2% from C. aff. gilbert. All species delimitation criteria employed herein corroborated the recognition of the new species. In addition, comments on its conservation status are provided.

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综合分类揭示了巴西Paraíba do Sul河上游流域一新种(特征:Curimatidae)

摘要根据形态和分子的综合划分标准，描述了巴西圣保罗上游Paraíba do Sul河流域的一新种Cyphocharax。在形态上与同类鱼的不同之处在于:尾柄中部有一个圆形的深色斑点，但未延伸到尾鳍中间线的近端;有19-20个环柄鳞片，34-41个穿孔的侧线鳞片，侧线上下有6-7行纵向鳞片;最大体长为标准长度的34.7-39.9%。新种与其他同属植物的遗传距离最小，分别为:C. gilbert的遗传距离为2.5%，C. santacatarinae的遗传距离为3.0%，C. aff. gilbert的遗传距离为3.2%。本文采用的所有种界标准均证实了新种的确认。此外，还对其保护状况提出了意见。

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

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.