Oligodon ancorus

Oligodon ancorus, commonly known as the northern short-headed snake, is a species of colubrid[1][2] snake found on the islands of Luzon and Mindoro in the Philippines, and the island of Sumatra in Indonesia. However, whether the populations from Sumatra, described as Oligodon rhombifer, belong to this species has been contested.[2]

Oligodon ancorus

Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Genus: Oligodon
Species:
O. ancorus
Binomial name
Oligodon ancorus
(Girard, 1858)
Synonyms

Oligodon rhombifer Werner, 1924

Taxonomy

The taxonomic status of Oligodon ancorus has been a matter of dispute. It was declared to be the same species as Oligodon rhombifer in 2008, but was revised to a different species in 2013, when a study found that O. rhombifer existed in Sumatra, where O. ancorus was not found.[2]

Phylogeny

Oligodon ancorus is a member of the genus Oligodon, a genus common throughout central and tropical Asia.[3] The genus belongs to the snake family Colubridae, the largest snake family, with member species being found on every continent except Antarctica.[4]

Habitat and ecology

Oligodon ancorus is a lowland species, found between sea level and 600 meters above sea level. It is terrestrial, being found in coastal forests and mid-montane tropical forests. It has also been found in secondary growth.[1]

Distribution

The snake is endemic to the Philippines, being found on Mindoro and Luzon islands.[1]

Conservation

The range of O. ancorus' overlaps with some protected regions on Luzon island.[1] However, it has never been a very abundant species, and its population is threatened by deforestation, which has consumed most of its coastal habitat in the last 100 year.[1] Its population is severely fragmented. The International Union for Conservation of Nature lists it as "Near threatened."[1]

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References
  1. Brown, R.; Ledesma, M. & Rico, E.L. (2009). "Oligodon ancorus". IUCN Red List of Threatened Species. 2009: e.T169903A6688428. doi:10.2305/IUCN.UK.2009-2.RLTS.T169903A6688428.en.
  2. Hallerman, Jakob; Uetz, Peter. "Oligodon ancorus". The Reptile Database. Retrieved 25 August 2015.
  3. David P, Vogel G, Pauwels OS (2008). "A new species of the genus Oligodon Fitzinger, 1826 (Squamata: Colubridae) from northern Vietnam, southern China and central Laos" (PDF). Zootaxa. 1939: 19–37.
  4. Bauer, Aaron M. (1998). Cogger, H.G.; Zweifel, R.G. (eds.). Encyclopedia of Reptiles and Amphibians. San Diego: Academic Press. pp. 188–195. ISBN 0-12-178560-2.
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