The presence of a rat-snake (Zamenis mucosus) in a house at night is believed to bring good fortune to the inmates.
A person should postpone an errand on which he is starting, if he sees a cobra or rat-snake.
All the roofs of the thatched bungalows swarm with rats, and in every house is kept a rat-snake, which kills and eats these rats.
There is a belief in Ceylon that the bite of the rat-snake, though harmless to man, is fatal to black cattle.
One the great serpent would select, would lap in scaly coils, crush to a red pulp and swallow as a rat-snake swallows a mouse.
A friend informs us that he once saw in these gardens a rat-snake of Ceylon devour a common Coluber natrix.