A team of ICUN found the venomous snake during a bio-diversity observation mission in the forest on May 21 this year, a press release of ICUN said yesterday.

The snake is locally known as 'Sundari Prabal'. Its scientific name is Callophis Melanurus, ICUN sources said.

The snake is very small in size but a little fat-bodied than earthworm. Its tail is deep red and its back is dark brown with brown stripe on every scalp.

The head and shoulder of the snake are black and there are two tiny yellow marks on its head. There are black and white rings around the middle part of its body and a pair of bands near the tail are clearly visible.

When the snake gets alarmed, it raises its tail in the air but keep its head hidden, experts said.

Earlier, Dr Reza Khan, an eminent zoologist, also found a similar species of coral snake in the Hazarikhil forest in Chittagong. But the snake again accidentally disappeared in the forest.

The slender coral usually lives under the shedding leaves of trees in the damp land and rarely they come out during heavy rainfall. The snake lives on earthworm and other smaller snakes.