Which of the following describes the identification features of non-poisonous snakes ?
1
Cylindrical tail and small belly scales
2
Cylindrical tail, broad transverse belly scales and 4th infralabial scale is the largest
3
Flat tail, broad transverse scales and 3rd supralabial scale touches eye and nose
4
Cylindrical tail, broad transverse belly scales and a loreal pit between eye and nostril