Description

SINGLE PAPER

Volume 25, Issue 1 – 25 January 2019


Achom Darshan, Santoshkumar Abujam, Leki Wangchu, Ram Kumar, Debangshu Narayan Das and  Raj Kumar Imotomba: A new species of glyptosternine catfish (Siluriformes: Sisoridae) from the Tawangchu River of Arunachal Pradesh, northeastern India, pp. 17-14

Abstract
Creteuchiloglanis tawangensis, a new glyptosternine catfish, is described from the Tawangchu River at Tawang district, a headwater of the Manas River, Brahmaputra basin in Arunachal Pradesh, India. The new species differs from all congeners in having an unique combination of the following characters: presence of pinnate-like rays on the anterior margin of the first branched ray of anal fin, pectoral fin not extending to the origin of pelvic fin, predorsal length 31.3-32.5% SL, body depth at anus 10.7-11.1% SL, caudal peduncle depth 6.4-6.8% SL, adipose-fin base length 33.2-33.8 % SL, pelvic fin length 19.5-20.5% SL, 2+8=10 gill rakers on the first branchial arch, head depth 9.1-10.0% SL, and eye diameter 5.8-6.9% HL. This is the fifth species of Creteuchiloglanis described from the Brahmaputra River basin.