GLYPTOTHORAX PASIGHATENSIS, A NEW SPECIES OF CATFISH (TELEOSTEI: SISORIDAE) FROM ARUNACHAL PRADESH, NORTHEASTERN INDIA

A new species of the Genus Glyptothorax, Glyptothorax pasighatensis sp. nov., is described from the Siang River of Arunachal Pradesh, India. The new species can be distinguished from its congeners by the following combination of characteristics: a distinct linear series of 6-8 mid-line neural spines between the dorsal and adipose fins and 3-5 in between the posterior adipose dorsal fins to origin of caudal fin, a serrated dorsal spine; its length 16.5-18.9% SL, caudal peduncle depth 7.3-9.3% SL, body depth at anus 13.5-15.9% SL, a long nasal barbel 26.0-31.8% SL, a long maxillary barbel 91.1-108.7% HL and elongated oval shape of thoracic apparatus.