Trachischium guentheri

The rosebelly worm-eating snake, or Günther's worm-eating snake, is a colubrid snake endemic to Asia. It has a rose-coloured belly when alive, while specimens preserved in alcohol are dark brown above with indistinct lighter and darker lengthwise streaks and yellowish below. Adults may attain 28 cm in total length, with a tail of 3.5 cm (Wikipedia, general species account).

Its preferred habitat is forest with rocky slopes at about 1,800 m, and it lives on the ground and partly underground. The Reptile Database gives an elevation of 3,000 to 7,000 feet.