albino common krait, bungarus caeruleus, satara, maharashtra,

albino common krait bungarus caeruleus satara maharashtra highly venomous snake indian neurotoxic wildlife respiratory failure india reptile nature west bengal forest reptiles animal poisonous species asia wild dangerous snakes neurotoxins outdoor sundarbans blue animals nocturnal calcutta subcontinent reptilia night chordata kolkata danger skin snakebites painless bite mysterious kalach science venom kalchiti black