HologerrhumHologerrhum is a genus of snakes in the family Cyclocoridae.Geographic rangeThe genus Hologerrhum is endemic to the Philippines.SpeciesThe genus Hologerrhum contains two species which are recognized as being valid.Hologerrhum dermali - Crombie's stripe-lipped snake, Dermal's cylindrical snakeHologerrhum philippinum - Philippine stripe-lipped snake