First Report of Paracanthocobitis abutwebi (Singer & Page, 2015) from Tizit River, Nagaland, India

Paracanthocobitis abutwebi Singer & Page, 2015 is reported first from the Tizit River, a tributary of the Brahmaputra River in Nagaland. Paracanthocobitis abutwebi is distinguished from all other Paracanthocobitis species in having combination of complete lateral line; absence of the axillary pelvic lobe; pattern of dark specks on the upper side between small dorsal saddles; 4-5 black bands on the caudal fin; commonly 12 dorsal-fin rays; 10-13 branched pectoral-fin rays; and alternating large and small dark patch along the lateral line; 8 pelvic fins rays and 6-7 anal-fins rays. Additional morphometric data of the species are discussed.