Abstract
This study describes a new diminutive sisorid catfish from the upper reaches of the Karnaphuli River drainage in northeastern India. The new species can be distinguished from congeners in having a combination of: length of dorsal-fin spine 18.0-21.6% SL; 4-10 serrations on the anterior edge of the dorsal spine; length of pectoral-fin spine 20.7-26.1% SL; length of adipose-fin base 21.5-26.3% SL; body depth at anus 12.3-15.9% SL; caudal peduncle depth 7.5-9.8% SL; caudal peduncle length 17.0-20.5% SL; pale, y-shaped marking on dorsal surface of head; sides of body with pale yellowish patches and irregular bands.
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