文章题目大亚马逊河甲鱼一新属(甲甲鱼目:甲甲鱼科)，并对五新种的种类和描述作了评述

IF 2 4区生物学 Q1 ZOOLOGY

Neotropical Ichthyology Pub Date : 2022-01-01 DOI:10.1590/1982-0224-2022-0002

R. Reis, P. Lehmann A.

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引用次数: 3

摘要

摘要描述了南美洲北部亚马逊河流域、奥里诺科河流域和圭亚南沿海流域一新属。这个新属是在所有现存的hypotopomatines中被诊断出来的，除了其他特征将新属与特定属区分开来外，还包括头部腹侧表面的管状颊板向后拉长并与喙接触。本文描述了5个新种，并将18个现有分布于腮腺鱼属(partocinclus)、Hisonotus和Curculionichthys中的种转移到新属并重新诊断。amazon partocinclus和P. aripuanensis被认为是P. britskii的初级同义词。详细说明了新属成员的次生两性二态性。形态学特征被用来划分可能具有系统发育意义的物种的四个表型群，这些表型群仍有待适当的测试。提供了一个物种的关键，并提供了所有物种的诊断、插图和分布图。

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A new genus of armored catfish (Siluriformes: Loricariidae) from the Greater Amazon, with a review of the species and description of five new species

Abstract A new genus of Hypopopomatinae armored catfish is described from the northern portions of South America, namely the Amazon, Orinoco and Guianan coastal drainages. The new genus is diagnosed from all remaining hypoptopomatines by having the canal cheek plate on the ventral surface of the head posteriorly elongated and contacting the cleithrum, in addition to other features that distinguish the new genus from specific genera. Five new species are described and 18 species currently allocated in Parotocinclus, Hisonotus, and Curculionichthys are transferred to the new genus and rediagnosed. Parotocinclus amazonensis and P. aripuanensis are considered junior synonyms of P. britskii. The secondary sexual dimorphism of the members of the new genus is detailed and illustrated. Morphological characters are used to delimit four phenotypic groups of species that might have phylogenetic significance, which still have to be properly tested. A key to the species is offered and diagnoses, illustrations, and distribution maps are provided for all species.

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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.