Redescription of siluroid Catfish <i>Pterocryptis barakensis</i> Vishwanath & Nebeshwar (Siluriformes: Siluridae)

Description of Pterocryptis barakensis from the Barak River, Tamenglong District (Brahmaputra drainage) of Manipur, India is inadequate. It is distinguished from P. berdmorei (Blyth) and the only other known species of the genus from the Indian region in having longer caudal fin, distinct sensory pores, serration pattern on posterior edges of anterior and posterior segments of pectoral spine, rounded tip and colour of pectoral and ventral fin, dimorphism in genital papillae in males and females and by a combination of meristic and morphometric characters

<i>Garra arupi</i>, a new cyprinid fish species (Cypriniformes: Cyprinidae) from upper Brahmaputra basin in Arunachal Pradesh, India

Garra arupi, a new cyprinid fish species is differentiated from its congeners along the base of the Himalaya in Brahmaputra basin by a combination of characters: two pairs of barbels, anterior position of vent (vent to anal distance 52.6-60.0% pelvic to anal distance), a band of 6-9 prominent horny tubercles on the tip of the snout, a submarginal black band on the dorsal fin, and 16 circumpeduncular scales. It is similar to G. kempi in having an anterior position of the vent, and similar to G. lissorynchus in having a distinct submarginal band on the dorsal fin. Garra arupi differs from G. kempi in having 35-36 (vs. 40-42) lateral line scales, 11-12 (vs. 13-14) predorsal scales, 16 (vs. 12) circumpeduncular scales, the presence of a distinct submarginal band on the dorsal fin (vs. absence), the presence of a transverse band of tubercles on the snout tip (vs. absence), and the presence of 7-8 thin stripes on the caudal peduncle (vs. absence). Garra arupi differs from G. lissorynchus in having 11-12 (vs. 14-15) predorsal scales, 7 (vs. 6) branched dorsal fin rays, 5 (vs. 4) branched anal fin rays, the absence of a W-shaped color band on the caudal fin (vs. presence), the absence of a rostral lobe on the snout (vs. presence), the presence of a transverse band of tubercles on the snout tip (vs. absence), and a vent to anal distance 52.6-60.0 (vs. 37.3-40.2 %) pelvic to anal distance