Jorai

Danionella priapus is a miniature cyprinid known only from the Jorai River, a Sankosh tributary in the Brahmaputra drainage of West Bengal, India. Males have a conical projection of the genital papilla forming a funnel between the pelvic fins, a feature that may be unique within the Cypriniformes. Referred to as D. sp. 'Jorai River' before its description, it grows to 16 mm SL and was collected from a sluggish, densely vegetated stream alongside Dario dario.

The drape fin barb, Oreichthys crenuchoides, is a small cyprinid possibly endemic to Brahmaputra tributaries in West Bengal, eastern India. The species is sometimes traded as Oreichthys cosuatis, O. sp. 'high fin', Puntius 'arunavii' or 'neon highfin barb'. Males have a significantly enlarged dorsal-fin, and a large black marking at the caudal-fin base with no dark marking in the anal-fin separates it from congeners.