Common krait
The Common Krait (Bungarus caeruleus), also known as the blue krait, is a species of highly venomous snake of the genus Bungarus native to the Indian subcontinent. It is a member of the "Big Four" species that inflict the most snakebites on humans in Bangladesh and India.
Description
The average length of the common krait is 0.9 m (3.0 ft), but it can grow to 1.75 m (5 ft 9 in). Males are longer than females, with proportionately longer tails. The head is flat and the neck hardly evident. The body is cylindrical, tapering towards the tail. The tail is short and rounded. The eyes are rather small, with rounded pupils, indistinguishable in life. The head shields are normal
Venom
The common krait's venom consists mostly of powerful neurotoxins, which induce muscle paralysis. Clinically, its venom contains presynaptic and postsynaptic neurotoxins, which generally affect the synaptic cleft (the points of information-transfer between neurons).