Pseudolaguvia viriosa, a new catfish (Teleostei: Sisoridae) from north-eastern India

Abstract

This study describes Pseudolaguvia viriosa, a new miniature sisorid catfish from the Brahmaputra River drainage in Arunachal Pradesh, northeastern India. Pseudolaguvia viriosa can be distinguished from congeners in having a combination of: eye diameter 10-15% HL, interorbital distance 35-38% HL, head width 21.5-23.5% SL, thoracic adhesive apparatus reaching beyond base of last pectoral-fin ray, pectoral spine length 26.9-32.9% SL, dorsal spine length 23.4-29.0% SL, dorsal spine with anterior edge smooth or with rugose surface only on distal third of spine, body depth at anus 16.9-19.0% SL, length of adipose-fin base 12.5-15.4% SL, caudal peduncle length 14.8-17.7% SL, caudal peduncle depth 7.4-9.8% SL, caudal-fin length 26.5-32.4% SL, 28-29 vertebrae, and one or more distinct pale bands encircling body. Copyright © 2012 Magnolia Press.