Genus: Pterocryptis Peters
Body elongated and compressed, abdomen rounded, head depressed. Mouth terminal, rayed dorsal fin small or entirely absent, if present, without a spine. Anal fin long, caudal fin round or truncate. Adipose dorsal fin absent.
Diagnosis: Body elongate, dorsal fin rudimentary with 2 rays or completely absent. 75 rays in the anal fin which is confluent with caudal fin. Pectoral fin with 13 branched rays; maxillary barbels reach midpoint of ventral fin base
Common names: Kalo howlurey, banspattey
Punatsangchhu: Koylatar (Dagana)
Altitude: 150 MASL (Single locality)
Conservation status: Endangered as per IUCN, status in Bhutan not known