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Description |
Geographic Range [top]
Range Description: This species occurs from southern Thailand to the Philippines and Sulawesi, Indonesia (Taylor 1965, Stuebing and Inger 1999). A record from Viet Nam is probably a misidentification and needs to be confirmed (Q.T. Nguyen pers. comm. September 2011). It has been recorded from sea level to 1,400 m asl.
Three subspecies are represented in the Philippines: M. i. bilineata recorded from Palawan, Busuanga and Calauit; M. i. suluensis, present in the Sulu Archipelago (including Jolo Island); and M. i. philippina, recorded from Mindanao (including the localities of Mount Hamiguitan, Mount Hilong-Hilong, Mount Malindang, Mount Campilili, Lake Lanao, and the Zamboanga Peninsula) and Samar. The snake may also be present on the islands of Bohol (in the Sierra Bullones) and Camiguin.
Countries occurrence:
Native:
Brunei Darussalam; Indonesia (Jawa, Kalimantan, Sumatera); Malaysia; Philippines; Singapore; Thailand
Additional data:
? Upper elevation limit (metres): 1400
Range Map: Click here to open the map viewer and explore range.
Population [top]
Population: This species is fairly common, but rarely seen (Lim and Lim 1992). Its secretive habits may account for the lack of sightings (R. Inger pers. comm.). There is little information available on the abundance of this species in the Philippines. It is rare in Thailand (T. Chan-ard pers. comm. September 2011).
Current Population Trend: Stable
Additional data:
? Population severely fragmented: No
Habitat and Ecology [top]
Habitat and Ecology: This species has been recorded from primary and secondary tropical moist forest, as well as from town gardens and agricultural fields (R. Inger pers. comm.). On Palawan and Calauit in the Philippines, it has been found in rural gardens and inside forest often close to watercourses. The species has been observed hunting frogs during daytime (M. Gaulke pers. comm. 2008) and blind snakes (T. Chan-ard pers. comm. September 2011).
Systems: Terrestrial
Use and Trade [top]
Use and Trade: This species is not used or traded.
Threats [top]
Major Threat(s): This species may be threatened by forest loss driven by agricultural land conversion, however, as this widespread snake has been recorded from agricultural land, this is not considered a major threat and any impacts are likely to be localized.
Conservation Actions [top]
Conservation Actions: No species-specific conservation measures are required. The species occurs in protected areas throughout its range.
Citation: Grismer, L., Chan-Ard, T., Diesmos, A.C., Delima, E.M., Gonzalez, J.C., Gaulke, M., Inger, R.F. & Tampos, G. 2012. Calliophis intestinalis. The IUCN Red List of Threatened Species 2012: e.T177500A1489467. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T177500A1489467.en. Downloaded on 20 March 2019.
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