ABSTRACT
Glyptothorax heokheei, a new species of sisorid catfish is described from the Brahmaputra River drainage in India. It can be distinguished from all congeners, exceptG. dikrongensis,G. indicus,G. rugimentumandG. obliquimaculatus, in having the unculiferous striae of thoracic adhesive apparatus extending anteriorly onto gular region.Glyptothorax heokheeiis distinguished fromG. dikrongensisandG. obliquimaculatusin having a slender body at the anus, more serrations on posterior margin of pectoral-fin spine, greater number of branched anal fin rays, and the extremity of dorsoposterior margin of adipose fin uniformly convex (vs. sharply angular). It differs fromG. rugimentumin having a chevron-shaped (vs. rhomboidal) thoracic adhesive apparatus, more serrations on posterior margin of pectoral-fin spine, and lacking vertical bars on body.Glyptothorax heokheeidiffers fromG. indicusin having a shorter post-adipose distance, smaller interorbital width, more serrations on posterior margin of pectoral-fin spine and nasal barbel not reaching (vs. reaching) anterior margin of eye.Glyptothorax heokheeiis the fifth species ofthe genuspossessing unculiferous ridges of thoracic adhesive apparatus extending anteriorly onto the gular region.
Subject(s)
Catfishes , Animals , Rivers , IndiaABSTRACT
A new species of sisorid catfish of the genus Exostoma is described from the Siang River in Arunachal Pradesh, northeastern India. The new species, Exostoma dhritiae, can be distinguished from congeners by the condition of the posterior extremity of the adipose-fin base, the degree of tuberculation on the dorsal surface of the head, and the shape of striae on the anterolateral surface of lips. Further, it is distinguished by the morphometric data for the body depth at the anus, maxillary barbel length, adipose fin base length, caudal peduncle length, caudal peduncle depth and the number of branched pectoral-fin rays. It is the twentieth reported species of Exostoma.
Subject(s)
Catfishes , Animals , Rivers , Animal Distribution , IndiaABSTRACT
Pseudolaguvia vespa, new species, is described from the Tscha River, Mokokchung district, Nagaland, India. The new species can be distinguished from congeners in having the following combination of characters: length of dorsal-fin spine 12.316.8% SL, a smooth anterior edge of the dorsal-fin spine, caudal peduncle depth 9.010.5% SL, body depth at anus 15.617.7% SL, caudal fin length 20.724.5% SL, pectoral fin length 20.124.1% SL, interorbital distance 22.728.1% SL, thoracic adhesive apparatus extending to midway between base of last pectoral-fin ray and pelvic-fin origin, and live specimens with two irregular, chrome-yellow bands on the body.
