Home - Taxonomy - Geography - Biodiversity - Literature - Purchase RepFocus Recent updates Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk). Latest update: December 31st, 2022. Taxonomy of the family Cyclocoridae Bibliography of the genus Hologerrhum Biodiversity of the family Cyclocoridae Genus Hologerrhum Philippine Cylindrical Snakes Philippinische Walzennattern Filippinske Valsesnoge 1858 Hologerrhum Günther (type species: Hologerrhum philippinum Günther 1858) Contents: 2 species, both of which are endemic. Endemism: 0% 100% Remarks: Previously included in the family Colubridae. Transferred to the family Cyclocoridae by Weinell & Brown (2018). Distribution: Philippines (Catanduanes, Luzon, Marinduque, Panay, Polillo). Hologerrhum dermali Panay Cylindrical Snake, (Dermal's Cylindrical Snake, Crombie's Stripe-lipped Snake) Panay-Walzennatter Panay-valsesnog 2001 Hologerrhum dermali Brown, Leviton, Ferner & Sison Distribution: Philippines (Panay). Hologerrhum philippinum Luzon Cylindrical Snake, Philippine Stripe-lipped Snake Luzon-Walzennatter Luzon-valsesnog 1858 Hologerrhum philippinum Günther Distribution: Philippines (Catanduanes, Luzon, Marinduque, Polillo).