Bungarus ceylonicus, the Ceylon krait or Sri Lankan krait,[1] is a species of venomous elapid snake which is endemic to the island Sri Lanka, locally known as Sinhala; Sinhalese: මුදු කරවලා .
The Sri Lankan krait is small and slender. On hatching, the length of the snake is about 250mm. The average adult length for this species is 75frac=4NaNfrac=4 with 90frac=4NaNfrac=4 being the upper limit.[2] Its black skin is crossed with thin white transverse bands. It has an extraordinarily long lung which it inflates when angry.
The species is principally present in the wet zone of Sri Lanka at elevations up to 1,700 m, with infrequent presence in the dry zone, and occurs in forest habitats as well as gardens and plantations.
The species is nocturnal, and sluggish by day. Its diet consists mainly of small mammals, frogs and other snakes. The krait is oviparous, laying cylindrical eggs with rounded ends that measure 30 mm x 17 mm.[2]