Genus: Bangana Hamilton
Upper jaw fully enclosed in upper lip, its median portion covered by rostral fold. Post labial groove uninterrupted and forming a deep, transverse groove that fully separates lower lip from mental region. Dorsal fin with 10 – 12 branched rays.
Synony ms: Cyprinus dero Hamilton, 1822; Labeo diplostomus (nec Heckel) Day, 1877; Osteochilus chalybeatus (Valenciennes) Day, 1877; L. almorhae Chaudhuri, 1912; L. rilli Chaudhuri, 1912; L. dero Hora and Mukerji, 1936.
Diagnosis: Dorsal fin rays 2-3/9-12, anal 2-3/5, pectoral 1/16-17 Prominent mouth which is overhanging with a distinct interrupted deep groove and tubercles on snout. 42 scales on lateral line.
Common names: Kalabans, Bhanga Distribution:
Punatsangchhu: Kalikhola, Sheti bagar and Jamuni (Dagana)
Amochhu: Torsa (Chukha)
Wangchhu: Pipping (Chukha)
Altitude: 125 – 200 MASL
Conservation status: Least concern (IUCN)