Hologerrhum philippinum GÜNTHER, 1858

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Higher Taxa	Cyclocoridae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Philippine Stripe-lipped Snake
Synonym	Hologerrhum philippinum GÜNTHER 1858: 186 Cyclochorus maculatus JAN & SORDELLI 1870 Hologerrhum philippinum — GÜNTHER 1873 Cyclochorus lineatus var. maculatus FISCHER 1885: 81 Hologerrhum philippinum — BROWN et al. 2001 Hologerrhum philippinum — MCLEOD et al. 2011 Hologerrhum philippinum — WALLACH et al. 2014: 334
Distribution	Philippines (Luzon, Polillo) Type locality: Philippines
Reproduction	oviparous
Types	Holotype: BMNH 1946.1.2.41 (and possibly additional specimens).
Diagnosis	Diagnosis: H. philippinum differs from its congener, H. dermali, by (1) the presence of 12-30 (vs. 7-10) pairs of alternating black spots on nuchal region and anterior dorsum. (2) a pale orange to salmon (vs. bright yellow) venter, (3) absence (vs. presence) of a black midventral stripe. (4) labials cream or yellow (vs. labials bright white with thin midlabial black bright stripe). (5) dorsum tan to orangish brown or dark brick red (vs. dark purplish brown), (6) chin and throat of adults pale tan to orange, immaculate or with faint white spots in some specimens (vs. darker purplish brown with black and white ocelli), (7) invariable presence of moderate to enlarged pretemporal (length more than half that of secondary temporal; vs. pretemporal reduced or absent), and (8) posterior tips of parietals extend caudally, posterior parietal suture forming a medially inverted V-shaped cleft (vs. posterior portions of parietals squared off. with no medial cleft) (Brown et al. 2001)
Comment	Synonymy: after Brown et al. 2001 The specimen illustrated in JAN & SORDELLI is actually Hologerrhum philippinum with doubtful locality data. Type species: Hologerrhum philippinum GÜNTHER 1858: 186 is the type species of the genus Hologerrhum GÜNTHER 1858.
Etymology	Named after its distribution in the Philippine Islands.
References	Brown, R.M.; C.H. Oliveros; C.D. Siler; J.B. Fernandez; L.J. Welton; P.A.C. Buenavente; M.L.L. Diesmos; A.C. Diesmos 2012. Amphibians and Reptiles of Luzon Island (Philippines), VII: Herpetofauna of Ilocos Norte Province, Northern Cordillera Mountain Range. Check List 8(3):469-490 - get paper here Brown, Rafe M., Alan E. Leviton, John W. Ferner and Rogelio V. Sison 2001. A new snake of the genus Hologerrhum Günther (Reptilia; Squamata; Colubridae) from Panay Island, Philippines. Asiatic Herpetological Research. 9:9-22 - get paper here Brown, Rafe M.; Ferner, John W.; Sison, Rogelio V.; Gonzales, Pedro C.; Kennedy, Robert S. 1996. Amphibians and reptiles of the Zambales Mountains of Luzon Island, Republic of the Philippines. Herpetological Natural History 4 (1): 1-22 Brown; Rafe; Cameron Siler, Carl Oliveros, Luke Welton, Ashley Rock, John Swab, Merlijn Van Weerd, Jonah van Beijnen, Dominic Rodriguez, Edmund Jose, Arvin Diesmos 2013. The amphibians and reptiles of Luzon Island, Philippines, VIII: the herpetofauna of Cagayan and Isabela Provinces, northern Sierra Madre Mountain Range. ZooKeys 266 (2013) Special Issue: 1-120<br />doi: 10.3897/zookeys.266.3982 - get paper here Fischer, J. G. 1885. Ichthyologische und herpetologische Bemerkungen. Teil IV: Über eine Kollektion von Amphibien und Reptilien von Mindanao. Jahrb. Hamburg. Wiss. Anst. 2: 80-81 - get paper here Gojo-Cruz, Paul Henric P. and Leticia E. Afuang 2018. The Zoogeographic Significance of Caraballo Mountain Range, Luzon Island, Philippines With Focus on the Biogeography of Luzon’s Herpetofauna. Philippine Journal of Science 147 (3): 393-409 - get paper here GOJO-CRUZ, Paul Henric P.; Leticia E. AFUANG, Juan Carlos T. GONZALEZ and William SM. GRUEZO 2018. Amphibians and Reptiles of Luzon Island, Philippines: the Herpetofauna of Pantabangan-Carranglan Watershed, Nueva Ecija Province, Caraballo Mountain Range. Asian Herpetological Research 9(4): 201–223 - get paper here Günther, A. 1858. Catalogue of Colubrine snakes of the British Museum. London, I - XVI, 1 - 281 Günther,A. 1873. Notes on some reptiles and batrachians obtained by Dr. Bernhard Meyer in Celebes and the Philippine Islands. Proc. Zool. Soc. London 1873: 165-172 - get paper here Jan, G. 1870. Iconographie générale des ophidiens, Vol. 3, Livraisons 35-50. J.B. Bailière et Fils, Paris, (Milan ?), 188 pp. - get paper here Leviton, Alan E.; Cameron D. Siler, Jeffrey L. Weinell, and Rafe M. Brown 2018. Synopsis of the Snakes of the Philippines. Proc. Cal. Acad. Sci. 64 (14): 399-568 - get paper here MCLEOD, David S.; Cameron D. SILER, Arvin C. DIESMOS, Mae L. DIESMOS, Vhon S. GARCIA, Angela O. ARKONCEO, Kelvin L. BALAQUIT, Charlene C. UY, Mariden M. VILLASERAN, Earle C. YARRA, Rafe M. BROWN 2011. Amphibians and Reptiles of Luzon Island, V: The Herpetofauna of Angat Dam Watershed, Bulacan Province, Luzon Island, Philippines. Asian Herpetological Research 2 (4): 177–198 - get paper here Taylor, E.H. 1922. The snakes of the Philippine Islands. Manila (Bureau of Printing or Science), Monograph 16: 312 pp. - get paper here Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp. Weinell, J. L., & Brown, R. M. 2017. Discovery of an old, archipelago-wide, endemic radiation of Philippine snakes. Molecular Phylogenetics and Evolution, 119: 144–150 [2018] - get paper here Weinell, Jeffrey L.; Errol Hooper, Alan E. Leviton, Rafe M. Brown 2019. Illustrated Key to the Snakes of the Philippines. Proc. Cal. Acad. Sci. (4) 66 (1): 1-49 - get paper here
External links	IUCN Red List - Hologerrhum philippinum - Least Concern, LC National Center for Biotechnology Information Google images

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