Material Examined : 1 adult.

Description & Scalation : Head broader than neck. Eye large with round pupil. Snout slightly projecting, obtuse; rostral a little broader than high, visible from above; internasals shorter than the prefrontals; 1 large preocular, reaching upper surface of the head, not in contact with the frontal, 1 small subocular; 2 postoculars; temporals 2+2; loreal 3. Scales in 17:17:12 rows, feebly keeled posteriorly; supralabials 8 ( 4th to 5th in cotact with the eye ); 10 infralabials, first 5 touching the first pair of genials. Ventrals 195; subcaudals 115, paired; anal entire.

Coloration : Head dark brown; body uniform brown above with some scales edged with black, posterior body marked with light irregular black cross-bars, which are distinct on tail; pale yellow below, posterior ventrals and subcaudals edged with black; lip scale sutures marked with light brown indistinct lines.

Natural History : Diurnal in its habits, terrestrial and a good climber as well. Fast and active in its movements. Mostly seen in the vicinity of human habitations; also paddy fields, grasslands, trees and storage places. I had observed an adult specimen on forest floor at about 0930 hrs at in South Andaman, another sub-adult was observed inside a house compound at about 1130 hrs at Mount Harriet National Park. Mainly feeds on rats, frogs, toads, birds, bats and other small reptiles. If cornered, will inflate throat and forbody, produces a hiss to a low growl sound, and strikes vigorously. Lays about 8-22 eggs. Grows up to 3.00m.

External link : http://reptile-database.reptarium.cz/species?genus=Ptyas&species=mucosa