Abstract
© Zoo Outreach Organisation; www.zoosprint.org Manuscript 1332; Received 15 February 2005; Finally accepted 01 July 2005; Date of publication 21 July 2005 1952 August 2005 | ISSN 0971-6378 ABSTRACT A new catfish of the genus Sisor Hamilton is described from the Barak River, a tributary of Brahmaputra River drainage in Manipur, India. Sisor barakensis sp. nov. differs from its closest congener S. chennuah Ng, in having larger eye (14.616.7% HL vs 9.9-11.4), narrower interorbital distance (16.019.8% HL vs 22.1-22.7), deeper body at anus (6.3-7.2% SL vs 5.6-5.8), longer dorsal spine (10.5-14.3% SL vs 7.9-9.5) and pectoral spine (18.6-20% vs. 16.9-18.2) length, deeper caudal peduncle (2.2-2.3% SL vs 1.4-1.6) and more number of serrations (15-21 vs 10) on posterior the edge of pectoral spine.
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