Opisthotropis alcalai BROWN & LEVITON, 1961

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Higher Taxa	Colubridae (Natricinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Gary's Mountain Keelback
Synonym	Opisthotropis alcalai BROWN & LEVITON 1961: 2 Opisthotropis alcalai — BROWN & ALCALA 1970: 115 Opisthotropis alcalai — DAVID et al. 2011 Opisthotropis alcalai — WALLACH et al. 2014: 508 Opisthotropis alcalai — MAGLANGIT et al. 2023
Distribution	Philippines (Mindanao) Type locality: Cugat Creek, on the west side of Dapitan Peak, Mt. Malindang, Zamboanga del Norte Province, Mindanao (2500 m).
Reproduction	oviparous
Types	Holotype: CAS-SUR 22250
Diagnosis	Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 77 characters), are available for collaborators and contributors. Please contact us for details.
Comment	Habitat: aquatic, inhabiting flowing streams. Diet: fishes, frogs, tadpoles, freshwater shrimp and earthworms. Behavior: nocturnal
Etymology	Named after Angel Alcala, the collector of the holotype.
References	Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here Brown, Walter C.; Alcala, Angel C. 1970. The zoogeography of the herpetofauna of the Philippine Islands, a fringing archipelago. Proc. Cal. Acad. Sci. 38 (6): 105-130 - get paper here Brown,W.C. & Leviton,A.E. 1961. Discovery of the snake genus Opisthotropis in the Philippine Islands, with description of a new species. Occasional Papers of the Natural History Museum of Stanford University (8): 1-11 - get paper here DAVID, PATRICK; CUONG THE PHAM, TRUONG QUANG NGUYEN & THOMAS ZIEGLER 2011. A new species of the genus Opisthotropis Günther, 1872 (Squamata: Natricidae) from the highlands of Kon Tum Province, Vietnam. Zootaxa 2758: 43–56 - 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 Maglangit, E. P. T., Bonachita, S. A. A., Arnado, M. J. T., & Nuñeza, O. M. 2023. Notes on the distribution and natural history of the enigmatic and endangered Opisthotropis alcalai (Brown & Leviton, 1961) on Mindanao Island, Philippines. Herpetology Notes, 16, 527-531 TEVES MAGLANGIT, ERL PFIAN; SHARMAINE ANN A. BONACHITA, MARK JOSEPH T. ARNADO & OLGA M. NUÑEZA. 2023. Notes on the distribution and natural history of the enigmatic and endangered Opisthotropis alcalai (Brown & Leviton, 1961) on Mindanao Island, Philippines Herpetology Notes 16: 527–531. - get paper here TEYNIÉ, ALEXANDRE; ANNE LOTTIER, PATRICK DAVID, TRUONG QUANG NGUYEN & GERNOT VOGEL 2014. A new species of the genus Opisthotropis Günther, 1872 from northern Laos (Squamata: Natricidae). Zootaxa 3774 (2): 165–182 - 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, 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 YANG, JIAN-HUAN; YIK-HEI SUNG & BOSCO PUI-LOK CHAN 2013. A new species of the genus Opisthotropis Günther, 1872 (Squamata: Colubridae: Natricinae) from Guangdong Province, China. Zootaxa 3646 (3): 289–296 - get paper here YANG, JIAN-HUAN; YING-YONG WANG, BING ZHANG, MICHAEL WAI-NENG LAU & WEN-HAO CHOU 2011. Revision of the diagnostic characters of Opisthotropis maculosa Stuart and Chuaynkern, 2007 with notes on its distribution and variation, and a key to the genus Opisthotropis (Squamata: Natricidae). Zootaxa 2785: 61–68 - get paper here Ziegler, Thomas; Patrick David, Vu Ngoc Thanh 2008. A new natricine snake of the genus Opisthotropis from Tam Dao, Vinh Phuc Province, northern Vietnam (Squamata, Colubridae). Zoosystematics and Evolution 84 (2): 197 -203 - get paper here
External links	IUCN Red List Google images

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