cerberus rynchops

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      Cerberus rynchops, also known as the New Guinea bockadam, South Asian bockadam, bockadam snake, or dog-faced water snake, is a mildly venomous species of a snake in the family Homalopsidae. It is native to coastal waters of South and Southeast Asia. The species was re-delimited in 2012, allocating populations east and south of the west coast of Thailand to other species.


      Ecology and behaviour


      It is commonly found in mangroves, mudflats, streams, ponds, tidal pools, on algae patches, and has even been found burrowing into the mud. It is rear-fanged and is mildly venomous. An aquatic and nocturnal snake, it feeds mainly on fish and is known to consume eels.
      In captivity, it is observed to move in a sidewinding direction on land. In the BBC series 'Life in Cold Blood' it was filmed adapting this sidewinding technique to jump across a mudflat in Singapore; up until then, no snakes were considered able to truly jump. It also has a prehensile tail that would suggest it could climb mangrove trees. It is now known to give birth to live young, numbering from 8 to 30, either in water or on land.
      It is a quite docile, mild-tempered and a hardy snake; in recent years it has become a welcome addition to snake hobbyists in the Philippines. It also owes its popularity to its bright yellow to orange belly coloring, mostly of females. In the Philippines, particularly in the Central Visayas area, this snake is commonly known as the "tangkig".


      Description


      The visibility of upper jaw, giving it a dog-like appearance. Head long and distinct from neck. Eyes small and beady, with rounded pupils. Dorsum dark gray, with faint dark blotches and a dark line along the sides of the head, across the eyes. Center cream with two distinct rows of large, diffuse dark gray spots.
      Scales are distinctly keeled. Midbody scale rows 21–25. Ventrals 132–160. Subcaudals 49–72.


      Distribution and habitat



      This is a saltwater-tolerant species found in India (including Andaman and Nicobar Islands), Bangladesh, Myanmar, Thailand, and northwestern Malaysia. The eastern limit of its distribution with Cerberus schneiderii is uncertain.


      References




      Further reading


      Boulenger GA (1890). The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia. London: Secretary of State for India in Council. (Taylor and Francis, printers). xviii + 541 pp. ("Cerberus rhynchops [sic]", pp. 374–375).
      Karns DR, O'Bannon A, Voris HK, Weigt LA (2000). "Biogeographical implications of mitochondrial DNA variation in the Bockadam snake (Cerberus rynchops, Serpentes, Homalopsinae) in Southeast Asia". Journal of Biogeography 27: 391–402
      Schneider JG (1799). Historiae Amphibiorum naturalis et literariae. Fasciculus primus, continens Ranas, Calamitas, Bufones, Salamandras et Hydros. Jena: F. Frommann. xiii + 264 pp. + corrigenda + Plate I. (in Latin).


      External links


      https://web.archive.org/web/20080823125843/http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Cerberus_rynchops.jpg
      https://web.archive.org/web/20080823125753/http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Cerberus_rynchops2.jpg
      https://web.archive.org/web/20080823125637/http://itgmv1.fzk.de/www/itg/uetz/herp/photos/Cerberus_rynchops3.jpg
      http://biodiversitycapiz.blogspot.co.za/2013/02/dog-faced-water-snake.html
      https://web.archive.org/web/20070109093424/http://www.wildsingapore.per.sg/discovery/factsheet/snakedogfaced.htm
      http://www.ecologyasia.com/verts/snakes/dog-faced_water-snake.htm

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    cerberus rynchops

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    Cerberus rynchops - Wikipedia

    Cerberus rynchops, also known as the New Guinea bockadam, South Asian bockadam, bockadam snake, or dog-faced water snake, is a mildly venomous species of a snake in the family Homalopsidae. [1] [2] It is native to coastal waters of South and Southeast Asia. [2]

    Dog-faced Water Snake (Cerberus rynchops) | U.S. Fish

    Cerberus rynchops. Common Name. Dog-faced Water Snake. South Asian Bockadam. Kingdom. Animalia. Location in Taxonomic Tree . Genus. Cerberus. Species. Cerberus rynchops. Identification Numbers. TSN: 174208. Geography. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the ...

    ADW: Cerberus rynchops: INFORMATION

    Cerberus rynchops is a solitary species that spends most of it's time hunting fish and moving between different salt and freshwater areas. They generally stay within 50km of the shoreline in areas with warm annual temperatures and lower, but variable salinity.

    10 Facts About The Dog-Faced Watersnake - Snake Radar

    Feb 24, 2023 · The dog-faced watersnake (Cerberus rynchops) has one of narrowest territories of any snake, not narrow as in confined to a single island, but literally narrow: their territory winds along the entire coast of India, Bangladesh and Burma, rarely straying inland by …

    New Guinea Bockadam - Facts, Diet, Habitat & Pictures on

    The New Guinea bockadam (Cerberus rynchops) is a mildly venomous species of snake native to South and Southeast Asia. It is a quite docile and hardy snake. In recent years it has become a welcome addition to snake hobbyists in the Philippines.

    Cerberus rynchops, Dog-faced Water Snake - IUCN Red List

    Based on morphology and DNA evidence, there are possible grounds for dividing this species into three: a South Asian species extending from India to Phuket, a Southeast Asian species from Phuket to Philippines and Indonesia, and a Palau species occurring in Palau exclusively.

    Asian Bockadam (Cerberus rynchops) - iNaturalist

    The New Guinea bockadam or dog-faced water snake, Cerberus rynchops, is a species of a colubrid snake native to coastal waters of Asia and Australia. (Source: Wikipedia, '', …

    New Guinea bockadam facts for kids - Kids encyclopedia

    Cerberus rynchops, also known as the New Guinea bockadam, South Asian bockadam, bockadam snake, or dog-faced water snake, is a mildly venomous species of a snake in the family Homalopsidae. It is native to coastal waters of South and Southeast Asia.

    Cerberus rynchops: diversification of a - JSTOR

    We investigated how these events may have influenced the evolution of Cerberus Cuvier, a marine coastal snake belonging to the Homalopsinae (Oriental-Australian Rear-fanged Water Snakes). This study is an expansion of a previous study on …

    Cerberus rynchops - Wikispecies - Wikimedia

    Cerberus rynchops (Schneider, 1799) Type locality: “Ganjam” (Orissa State, SE India).