Native Animals
Cerberus rynchops
Dog-faced Water Snake
LC
Least Concern
IUCN Red List of Threatened Species
ver 3.1, 2010
Taxonomy
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Kingdom
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Phylum
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Class
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Order
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Family
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Genus
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Specific Epithetrynchops Schneider, 1799
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Synonym
- Homalopsis rhynchops (Schneider, 1799)
- Hydrus rhynchops Schneider, 1799
- Python rhynchops (Schneider, 1799)
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Common Name
- Asian Bockadam (English)
- Bockadam (English)
- Bockadam Snake (English)
- Dog-faced Water Snake (English)
- New Guinea Bockadam (English)
- Ular Air Kadut (Malay)
- Ular Air Muka Anjing (Malay)
- Ular Birang (Malay)
- Ular Tambak (Bahasa Indonesia)
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ResidentialNative
The taxonomic status is pending for approval
Description
The Dog-faced Water Snake can grow up to 127 cm in total length (Das, 2010). The head of Dog-faced Water Snake is slightly distinct. Its shields are large and sometimes fragmented. The small eyes with vertically elliptical pupils are located rather close to the snout. The stout body is cylindrical, the scales are strongly keeled and the ventrals are smooth. It possesses greyish body with brownish or olivaceous above, with more or less distinct dark spots or crossbars. A black streak passes through the eye to the neck. The belly is both yellowish and heavily mottled with black or almost entirely dark grey. It feeds on fish like mudskippers and gobies (Das, 2010). It inhabits mangroves, brackish river mouths and occasionally freshwater far inland.
Habits
| No | Part | Habit | |
|---|---|---|---|
| 1 |
Ovoviviparous — Reproduction through production of live young that hatch from eggs within female oviducts.
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| 2 |
Semi-aquatic — An animal living partly on land and partly in water or a plant growing in very wet or waterlogged ground.
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| 3 |
Viviparous — Giving birth to living young that develop within the mother's body rather than hatching from eggs
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Habitats
| No | Description | Suitability | Seasonality |
|---|---|---|---|
| 1 |
Forest → Mangrove Forest
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Unknown | Unknown |
| 2 |
Forest → Subtropical/Tropical Mangrove Forest Vegetation Above High Tide Level
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Marginal | Unknown |
| 3 |
Marine Intertidal → Mangrove Submerged Roots
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Suitable | Unknown |
| 4 |
Marine Intertidal → Mud Flats and Salt Flats
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Suitable | Unknown |
| 5 |
Marine Neritic → Estuaries
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Suitable | Unknown |
| 6 |
Marine Neritic → Subtidal Muddy
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Suitable | Unknown |
| 7 |
Wetlands → Permanent Rivers, Streams, Creeks [includes waterfalls]
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Suitable | Unknown |
References : http://www.iucnredlist.org/technical-documents/classification-schemes/habitats-classification-scheme-ver3
Assessment
| Year Published | Assessment | Red List Category | Version |
|---|---|---|---|
| 2010 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
3.1 |
Location
by State Location
- Johore 1
- Kedah 1
- Pahang 2
Based on publications, specimens, and images
Specimen
| Collection Center | Dried | Live | Slide | Wet | Total | |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 6 |
Biodiversity Experts
| Profile | |
|---|---|
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Amirrudin Bin Ahmad (Dr.)
Universiti Malaysia Terengganu (UMT)
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Amphibians, Dragonflies and Damselflies, Fishes, Reptiles,
Biodiversity, Data Analysis, Digital Sequence Information (DSI), Living Modified Organism (LMO), Marine & Coastal, Protected Areas & Invasive Alien Species
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Chen Pelf Nyok (Dr.)
Turtle Conservation Society of Malaysia (TCS)
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Turtle, Tortoise, and Terrapin (Ecology), Reptiles (Ecology),
Biodiversity, Conservation, Education & Environment
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Kaviarasu Munian (Mr.)
Forest Research Institute Malaysia (FRIM)
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Reptiles (Ecology), Amphibians (Ecology), Fishes (Ecology),
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Lim Boo Liat (Dr.)
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Reptiles (Ecology), Rodents (Ecology), Amphibians (Ecology),
Biodiversity, Ecosystems & Invasive Alien Species
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Mohammad Shahfiz Azman (Mr.)
Forest Research Institute Malaysia (FRIM)
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Amphibians, Mammals, Birds, Amphibians, Reptiles,
Awareness, Biodiversity, Conservation, Ecosystems, Environment, Forest, Landscape, Law and Policy, Management, Protected Areas, Science, Systematics, Invasive Alien Species, Like-Minded Megadiverse Countries (LMMC), National Policy on Biological Diversity, Policy, Research and Development (R&D) & Zoonotic
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Mohd Abdul Muin Bin Md Akil (Mr.)
Universiti Sains Malaysia (USM)
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Amphibians, Birds, Reptiles, Snakes,
Biodiversity, Conservation, Evolution, Genetics, Molecular, Protected Areas, Climate Change & Invasive Alien Species
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Mohd Zulfadli Bin Mohd Arshad (Mr.)
Department of Wildlife and National Parks (PERHILITAN)
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Rodents (Taxonomy), Reptiles,
Molecular, Biodiversity & Science
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Norhayati Binti Ahmad (Prof. Dr.)
Universiti Kebangsaan Malaysia (UKM)
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Frogs and Toads, Snakes, Amphibians, Reptiles,
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Teo Eng Wah (Dr.)
University of Malaya (UM)
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Reptiles, Amphibians,
Invasive Alien Species
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PM - Peninsular Malaysia; SBH - Sabah; SWK - Sarawak; SEA - Southeast Asia; W - World;
References
Article
- Lim, B.L., Noor Alif Wira, O., Chan, K.O., Daicus, B. & Norhayati, A. (2010). An Updated Checklist of the Herpetofauna of Pulau Singa Besar, Langkawi, Peninsular Malaysia. Malaysian Applied Biology Journal 39 (1), 13-23. https://www.researchgate.net
- Lim, K.K.P. & Lim, L.J. (1999). The Terrestrial Herpetofauna of Pulau Tioman, Peninsular Malaysia. The Raffles Bulletin of Zoology Supplements (6), 131-155
Book
- Panduan Pengendalian Reptilia Berbisa (Ular). Jabatan Bomba dan Penyelamat Malaysia. pp. 75.
- Das, I. (2010). A Field Guide to the Reptiles of South-East Asia. New Holland Publishers (UK), England. pp. 369.
- Das, I. (2012). A Naturalist's Guide to the Snakes of South-east Asia : Including Malaysia, Singapore, Thailand, Myanmar, Borneo, Sumatra, Java and Bali. John Beaufoy Publishing, Oxford, England. pp. 70-71; 160 pg.
- Lee Grismer, L. (2005). Amphibians and Reptiles of the Tioman Archipelago, Malaysia. Forestry Department Peninsular Malaysia, Malaysia. pp. 215.
- Maimon, A. (2008). Biodiversity of Sungai Pulai: Ramsar Site, Johor. Earth Observation Centre, Malaysia. pp. 97.
- Marlon, R., Supriatna, J., Liswanto, D., Baskoro, K., Putra, S. & Patty, H.R. (2014). Panduan Visual dan Identifikasi Lapangan: 107+ Ular Indonesia. Indonesia Nature & Wildlife Publishing, Indonesia. pp. 251.
- Norhayati, A., Daicus, B. & Chan, K.O. (2021). Ular Darat Malaysia / Land Snakes of Malaysia. Penerbit UKM, Malaysia. pp. 100.
- Shaharuddin, M.I., Azahar, M., Razani, U., Kamaruzaman, A.B., Lim, K.L., Suhaili, R., Jalil, M.S. & Latiff, A. (2005). Sustainable Management of Matang Mangroves: 100 Years and Beyond. Jabatan Perhutanan Semenanjung Malaysia, Malaysia. pp. 531.
Chapter in book
- Das, I. & Norsham, S.Y. (2007). Status of Knowledge of The Malaysia Herpetofauna. In Chua, L.S.L., Kirton, L.G. & Saw, L.G. (Eds.), Status of Biological Diversity in Malaysia and Threat Assessment of Plant Species in Malaysia: Proceedings of the Seminar and Workshop, 28-30 June 2005. Forest Research Institute Malaysia (FRIM). pp. 31-81.
Related by Genus
Acknowledgements :- Ms. Aida Salihah Binti Abu Bakar, Ms. Ajla Rafidah Baharom, Ms. Amirah Hasanah Binti Mazlan, Mrs. Aziemah Binti Kinan, Mr. Badrul Amin Bin Jaffar, Ms. Fatin Farisha Binti Mohd Jamil, Ms. Noor Amira Aini Binti Noor Anwar, Ms. Nor Liyana Binti Hassan, Mrs. Nur Hazwanie Binti Abd Halim, Ms. Nurfarhana Hizan Binti Hijas, Ms. Nurul Aimi Amirah Binti Mohd Zaki, Ms. Siti Zubaidah Binti Abdul Latif, Mr. Tan Kok Kiat, Mrs. Wan Roniza Binti Ismil & Mr. Yasser Mohamed Arifin
Photo credit :- Chan Kin Onn
Species Citation :- Cerberus rynchops. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/20901. [Retrieved 12 December 2023].
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