Redescription of Five Species of the Genus Lycodon (Boie, 1826) (Serpents, Colubridae) on the Basis of Morphological Variation Collected From Birbhum, West Bengal, India

A comparative morphometric study was done on five species of Lycodon, L. aulicus, L. capucinus, L. travancoricus, L. fasciatus and L. striatus. All the species differ from each other on several aspects like number of supralabials, infralabials, ventrals, dorsals, distances between eye to nostril, eye diameter, number and shape of the banding pattern. A key is framed on the basis of presence or absence of band in between head and neck and number of supra- and infra-labials.