巴西东北部云鱼属一新种记述(鲤形目:云鱼科)

IF 2 4区生物学 Q1 ZOOLOGY

Neotropical Ichthyology Pub Date : 2023-01-01 DOI:10.1590/1982-0224-2023-0068

Telton P. A. Ramos, Dalton T. B. Nielsen, Yuri G. Abrantes, Fabio Origuela de Lira, Silvia Y. Lustosa-Costa

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引用次数: 0

摘要

摘要在巴西北里奥格兰德州rio Trairi盆地的一个临时水池中描述了一种名为Hypsolebias属的云鱼新种。这是该盆地首次记录到的拟索斜属。该新种属火种群，由火种群分别为:交替火种群、brunoi火种群、delucai火种群、fasciatus火种群、longignatus火种群、marginatus火种群、multiradiatus火种群和flammeus火种群。这个新物种不同于该群体的所有其他物种，除了H. flammeus, H. multiradiatus和H. brunoi，雄性的颜色模式和雌性黑色斑点周围金属蓝色光泽的存在。它与H. flammeus, H. multiradiatus和H. brunoi的不同之处在于背鳍和肛鳍的形状(圆形和尖形)以及雄性身体和肛鳍上的红褐色条纹的方向(对角线和垂直)。新种与巴西东北部的同系种的主要区别在于雄鱼的背鳍数量较多，纵向序列的鳞片数量较多。

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A new species of cloud fish of the genus Hypsolebias from Northeast Brazil (Cyprinodontiformes: Rivulidae)

Abstract A new species of cloud fish of the genus Hypsolebias is described from a temporary pool in the rio Trairi basin, Rio Grande do Norte State, Brazil. It is the first record of the genus Hypsolebias for the basin. The new speciesbelongs to the H. flammeus species-group, which is composed of the species H. alternatus, H. brunoi, H. delucai, H. fasciatus, H. longignatus, H. marginatus, H. multiradiatus, and H. flammeus. The new species differs from all other species of the group, except H. flammeus, H. multiradiatus,and H. brunoi, by male color pattern and the presence of a metallic blue sheen surrounding the black spots of females. It differs from H. flammeus, H. multiradiatus and H. brunoi by dorsal and anal fin shape (both rounded vs. pointed) and by the orientation of the reddish-brown bars on the body and anal fin of males (diagonal vs. vertical). The new species differs from its congeners of Northeast Brazil mainly by the higher number of dorsal fin rays in males and the higher number of scales in the longitudinal series.

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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.