Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: May 12th, 2024.
 
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Genus
Enhydris
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Asian Mud Snakes, River Snakes, Smooth-scaled Water Snakes, False Water Snakes
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Asiatische Schlammnattern, Wassertrugnattern
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Asiatiske Muddersnoge
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1801 |  |
Enhydris Latreille in Sonnini & Latreille (type species: Enhydris cærulea Sonnini & Latreille 1802) |
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1830 | |
Hypsirhina Gray (type species: Homalopsis aer Boie 1826; syn. Murphy & Voris 2014) |
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1836 | |
Potamophis Cantor (type species: Potamophis lusingtonii Cantor 1836; syn. Murphy & Voris 2014) |
Contents:
6 species, of which 3 (50.0%) are endemic.
Endemism: 0%  100%
Remarks:
Previously included
Dieurostus,
Ferania,
Homalophis,
Hypsiscopus,
Phytolopsis,
Pseudoferania,
Raclitia,
and the species now placed in
Gyiophis,
Kualatahan,
Mintonophis,
Myrrophis,
Subsessor,
and
Sumatranus.
Distribution:
SE. Asia, W. Indonesia.
Reported from:
Bangladesh,
Bhutan,
Brunei,
Cambodia,
India
(Andhra Pradesh,
Arunachal Pradesh,
Assam,
Bihar,
Chhattisgarh,
Madhya Pradesh,
Meghalaya,
Nagaland,
Odisha,
Telangana,
Tripura,
Uttar Pradesh,
Uttarakhand,
West Bengal),
Indonesia
(Bangka,
Belitung,
Java,
Kalimantan,
Sumatra,
Weh),
Laos,
Malaysia
(Sarawak,
West Malaysia
[incl.
Langkawi Archipelago,
Seribuat Archipelago
(incl.
Tioman)]),
Myanmar,
Nepal,
Singapore,
Sri Lanka,
Thailand,
Vietnam.
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Enhydris chanardi
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Thai Mud Snake, (Chanard's Mud Snake, Chanard's Water Snake)
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Thailändische Schlammnatter
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Thailandsk Muddersnog
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2005 | |
Enhydris chanardi Murphy & Voris |
Distribution:
Thailand.
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Enhydris enhydris
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Striped Mud Snake, Rainbow Mud Snake, Rainbow Water Snake, Common Smooth Water Snake
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Gestreifte Schlammnatter
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Stribet Muddersnog
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1799 | |
Hydrus enhydris Schneider |
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Homalopsis enhydris Cantor 1847 |
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Hypsirhina enhydris Duméril & Bibron 1854 |
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Enhydris enhydris Barbour 1912 |
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1802 | |
Enhydris cærulea Sonnini & Latreille (Murphy 2007) |
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1802 | |
Hydrus atrocaeruleus Shaw (Murphy 2007) |
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1803 | |
Coluber pythonissa Daudin (Murphy 2007) |
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1826 | |
Homalopsis aer Boie (Murphy 2007) |
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Coluber aer Eydoux & Gervais 1837 |
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Hypsirhina aer Gray 1849 |
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1836 | |
Potamophis lusingtonii Cantor (Murphy 2007) |
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1839 | |
Homalopsis olivaceus Cantor (Murphy 2007) |
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1842 | |
Hypsirhina bilineata Gray (Smith 1943) |
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Hypsirhina enhydris bilineata Lampe & Lindholm 1902 |
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1842 | |
Hypsirhina furcata Gray (Murphy 2007) |
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1842 | |
Hypsirhina trilineata Gray (Murphy 2007) |
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1875 | |
Hypsirhina albolineata Morice (Murphy 2007) |
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1905 | |
Helicops indicus Annandale (Smith 1943) |
Remarks:
Reports from New Guinea (e.g., Rooij 1917; Haas 1950; Whitaker, Whitaker & Mills 1982) are most certainly based on polylepis (Murphy 2007), and O'Shea (1996) did not include enhydris in his New Guinea checklist. An apparently overlooked population exists in Sri Lanka (Murphy 2007). A single record from Hong Kong is believed to have been an imported animal from Thailand (Murphy 2007). Other records from China are considered doubtful. Zhao & Adler (1993) and Murphy (2007) did not list the species for China. Presence in Singapore was recently confirmed (Lim & Rozario 2009). Presence in Sulawesi (e.g., Bosch 1985; Iskandar & Colijn 2001; Iskandar & Tjan 1996) needs confirmation, since only a few voucher specimens are available from the island (Lang & Vogel 2005).
Distribution:
Bangladesh,
Bhutan,
Brunei,
Cambodia,
India
(Andhra Pradesh,
Arunachal Pradesh,
Assam,
Bihar,
Chhattisgarh,
Madhya Pradesh,
Meghalaya,
Nagaland,
Odisha,
Telangana,
Tripura,
Uttar Pradesh,
Uttarakhand,
West Bengal),
Indonesia
(Bangka,
Belitung,
Java,
Kalimantan,
Sumatra,
Weh),
Laos,
Malaysia
(Sarawak,
West Malaysia
[incl.
Langkawi Archipelago,
Seribuat Archipelago
(incl.
Tioman)]),
Myanmar,
Nepal,
Singapore,
Sri Lanka,
Thailand,
Vietnam.
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Enhydris enhydris
© Rune Midtgaard
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Enhydris innominata
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Tay Ninh Mud Snake, Mekong Delta Water Snake, Black-spotted Water Snake, (Morice's Water Snake)
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Tay-Ninh-Schlammnatter
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Tay Ninh-muddersnog
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1875 | |
Hypsirhina innominata Morice |
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Enhydris innominata Smith 1929 |
Remarks:
Currently regarded as monotypic, but previously included the subspecies smithi, now regarded as a synonym of jagorii. Reports from Thailand (Gyi 1970) are probably based on misidentified jagorii (Murphy 2007).
Distribution:
Cambodia,
Vietnam.
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Enhydris jagorii
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Bangkok Mud Snake, (Striped Water Snake, Jagor's Water Snake)
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Bangkok-Schlammnatter
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Bangkok-muddersnog
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1863 | |
Hypsirhina jagorii Peters |
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Enhydris jagorii Smith 1943 |
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1914 | |
Hypsirhina smithi Boulenger (Murphy 2007) |
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Enhydris smithi Smith 1929 |
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Enhydris innominata smithi Saint Girons 1971 |
Remarks:
This species is now restricted to Bangkok and its surroundings, although there is also a single record from Hua Hin, about 200 km south of Bangkok (Murphy 2007). Previously (e.g., Smith 1943; Gyi 1970) included populations now referred to subtaeniata. Records from elsewhere in Thailand, Cambodia, Laos, and Vietnam, refer to subtaeniata (Murphy 2007; Nguyen, Ho & Nguyen 2009).
Distribution:
Thailand.
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Enhydris longicauda
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Long-tailed Mud Snake, Long-tailed Water Snake
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Langschwanz-Schlammnatter
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Langhalet Muddersnog
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1934 | |
Hypsirhina longicauda Bourret |
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Enhydris longicauda Smith 1943 |
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Enhydris innominata longicauda Saint Girons 1971 |
Remarks:
Regarded as a subspecies of innominata by Iskandar & Clijn (2001).
Distribution:
Cambodia.
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Enhydris subtaeniata
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Mekong Mud Snake, Indochinese Water Snake
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Mekong-Schlammnatter
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Mekong-muddersnog
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1934 | |
Hypsirhina enhydris subtaeniata Bourret |
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Enhydris subtaeniata Murphy 2007 |
Remarks:
Previously regarded as a synonym of jagorii (e.g., Gyi 1970). Revalidated by Murphy (2007).
Distribution:
Cambodia,
Laos,
Thailand,
Vietnam.
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