A New Sisorid Catfish of the Genus Exostoma Blyth from the Chindwin-Irrawaddy Drainage in Northeastern India (Teleostei: Siluriformes)

IF 2.6 Q2 Agricultural and Biological Sciences

Copeia Pub Date : 2020-09-01 DOI:10.1643/CI-19-248

B. Shangningam, L. Kosygin

引用次数: 2

Abstract

A new species of glyptosternine catfish of the genus Exostoma is described from the Chakpi River, a tributary of the Chindwin-Irrawaddy drainage in northeastern India. The new species can be distinguished from congeners of the Chindwin-Irrawaddy drainage except E. chaudhurii and E. vinciguerrae in having an adipose fin confluent (vs. separate) with the upper procurrent caudal-fin rays. It differs from E. chaudhurii in having anastomosing, rounded (vs. parallel) striae on the anterolateral surfaces of the lips and from E. vinciguerrae in having shorter adipose-fin base (29.1–32.3% SL vs. 35.4–39.4). This is the sixth species of Exostoma known from the Chindwin-Irrawaddy drainage.

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印度东北部Chindwin Irrawaddy流域Exomotom Blyth属的一种新Sisorid Catfish（Teleostei：志留目）

描述了印度东北部Chindwin Irrawaddy流域支流Chakpi河中的一种Exostoma属glyptosternine鲶鱼的新种。该新物种可以与伊洛瓦底江流域的同类物种区分开来，除了chaudhurii和vinciguerrae，它们的脂肪鳍与上顺流尾鳍射线融合（而不是分离）。它与chaudhurii的不同之处在于嘴唇前侧表面有吻合的圆形（与平行的）条纹，与长鼻龙的不同之处是脂肪鳍底较短（29.1–32.3%SL与35.4–39.4）。这是从Chindwin Irrawaddy流域已知的第六种外口虫。

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

Copeia 生物-动物学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Founded in 1913, Copeia is a highly respected international journal dedicated to the publication of high quality, original research papers on the behavior, conservation, ecology, genetics, morphology, evolution, physiology, systematics and taxonomy of extant and extinct fishes, amphibians, and reptiles. Copeia is published electronically and is available through BioOne. Articles are published online first, and print issues appear four times per year. In addition to research articles, Copeia publishes invited review papers, book reviews, and compiles virtual issues on topics of interest drawn from papers previously published in the journal.