梅加拉亚拟鲿，一种来自印度东北部的新的小型鲿科鱼类（硬骨鱼纲：鲇形目）。

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish (Teleostei: Siluriformes) from Northeastern India.

机构信息

Department of Zoology, Assam Don Bosco University, Tapesia Gardens, Kamarkuchi, Sonapur, Assam 782402.

出版信息

Zootaxa. 2022 Aug 17;5175(3):367-376. doi: 10.11646/zootaxa.5175.3.3.

DOI:10.11646/zootaxa.5175.3.3

Abstract

Pseudolaguvia meghalayaensis, a new diminutive sisorid catfish, is described from the confluence of Rongkil and Rongdal streams (tributaries of the Brahmaputra River) in Meghalaya, India. It is distinguished from its congeners by a combination of characters: striae in thoracic adhesive apparatus strongly anastomosing and break up into small rounded plaques posteromedially, smooth anterior edge of dorsal spine, 8 branched pectoral-fin rays, supraoccipital spine not reaching nuchal shield, pectoral-fin length 17.120.1% standard length (SL), predorsal length 40.443.8% SL, preanal length 71.173.1% SL, body depth at anus 15.618.1% SL, anal-fin base length 12.212.7% SL, and post adipose fin length12.312.6% SL.

摘要

梅加拉亚 Pseudolaguvia meghalayaensis，一种新的小型𬶐科鱼类，描述自印度梅加拉亚的 Rongkil 和 Rongdal 溪流（雅鲁藏布江的支流）的交汇处。它与同属鱼类的区别在于以下特征的组合：胸鳍附器上的条纹强烈吻合，并在后内侧处分解成小圆形斑块，背棘前缘光滑，8 个分支的胸鳍鳍条，上枕骨棘不达到颈盾，胸鳍长度为标准长度（SL）的 17.120.1%，背鳍前长为 SL 的 40.443.8%，肛门前长为 SL 的 71.173.1%，身体在肛门处的深度为 SL 的 15.618.1%，臀鳍基部长为 SL 的 12.212.7%，以及脂鳍后长为 SL 的 12.312.6%。