Reptilia · Squamata
Enhydris jagoriiPeters, 1863
Bangkok Mud Snake
No photograph of this species exists under a license anyone may reuse. It gets the same page regardless.
A water-living, nocturnal, meat-eating snake from the Oriental region, reaching 750 mm nose to tail.
Also called Jagor’s Water Snake, Striped Water Snake.
Reptilia › Squamata › Homalopsidae › Enhydris
- Grows to
- 750mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Nocturnal
- Lives
- Aquatic
Longer than 64% of all species in Homalopsidae anyone has measured.
The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 128 to 1,400 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.
What is known
36 sourced facts, each taken from a named scientific dataset. How to read these.
Cited from a dataset unless a row is marked otherwise.
Two of these figures disagree
Body mass (adult female, mean) is given as 323, and Body mass (greatest) as 136.9 — but an average female cannot outweigh the heaviest animal recorded. They come from different sources and both are shown exactly as those sources give them.
Standing in the world
- Still living
- Extant
- Conservation status
- Data Deficient
- Status assessed · the year the Red List last looked
- 2009
The animal itself
- Limbs
- None
- Pupil
- Vertical slit
- Venomous
- Yes
- Fangs
- At the back of the mouth
Size
- Length snout to vent · greatest recorded
- 650mm2 ft 2 in
- Length snout to vent · adult female mean
- 505mm20 in
- Length nose to tail · greatest recorded
- 750mm2 ft 6 in
- Female length · mean, nose to tail
- 634.6mm2 ft 1 in
- Hatchling length · snout to vent
- 149mm5.75 in
- Hatchling length · nose to tail
- 194.6mm7.75 in
- Body mass at hatchingmeasured
- 4.56g0.16 oz
- Body mass · greatestcomputeddisputed
- 136.9g4.8 oz
- Body mass · adult female, meanmeasureddisputed
- 323g11.4 oz
515 mm total length (Feldman et al. 2016), Cox et al. 2012 (max male TL 473 mm, max female TL 515 mm), Pongcharoen et al. 2015 (48 male "mean SVL was 47.64 ±4.82 centimeters ranged from 34.0 to 53.0 centimeters... body mass was 210.59 ±58.97 grams ranged from 63.0 to 302.0 grams", 50 females mean SVL "50.30 ±7.24 centimeters ranged from 34.0 to 65.0 centimeters. The mean TL was 13.16 ±1.87 centimeters... mean body mass was 323.08 ±152.18 grams ranged from 94.0 to 707.0 grams", 48 neonates 12-16.3, mean 14.9 cm SVL, mean tail length 4.56 cm, mass 2.74-8.14 g mean 4.56 g), Pongcharoen et al. 2016 (mean gravid female SVL 507.3, range 340-650 mm, mass 345.25 ± 154.93, range 94.0-707.0 g)
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- Active
- Nocturnal
- Where it lives
- Aquatic
- Habitat
- Wetlands
- Biome
- Tropical & Subtropical Moist Broadleaf Forests
- Region
- Oriental
- Mainland or island
- Mainland
- Elevation · above sea level
- 24–855m
- Range size
- 16,693km²
fishes (Pongcharoen et al. 2016)
Feldman 2015
Feldman 2015, Pongcharoen et al. 2015
Breeding
- Reproduction
- Viviparous
- Average clutch
- 14.5
- Eggs or young per clutch
- 1–28eggs
- Mean clutch
- 11eggs
Feldman et al. 2015
midpoint of the reported range — Meiri, 2024, Glob. Ecol. Biogeogr., 33:e13812
1-28, mean 11, n = 18 (Pongcharoen et al. 2016)
Naming and history
- Suborder
- Serpentes
- Infraorder
- Alethinophidia
- Subspecies
- No
- Described by
- Peters
- Moved to another genus · since it was first described
- Yes
- Described in
- 1863
- Type locality
- Thailand
Keeping one
2 ft 6 in × 15 in × 22 in(75 × 38 × 56 cm)
Minimum length × width × height, for one animal. Bigger is always better.
The standard sizes snakes as a fraction of total length: 1 × 0.5 × 0.75.
Spends time in water, so a water area is part of the enclosure rather than a dish.
Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.
From this animal’s own total length of 2 ft 6 in (750 mm), at 1 × 0.5 × 0.75 times it, following the German federal welfare standard — how this is worked out.
No preferred body temperature has been recorded for Bangkok Mud Snake. Rather than repeat a number from a care sheet, this page leaves it out.
Feeding
A prey item should be between the same width as the widest part of the snake's body and about 1.5 times that width.
Widely used across snake husbandry references. An alternative formulation gives prey at 10-15% of the snake's body mass. This is established practice, not a measurement.
16kJ per day
Worked out for an animal of 137 g, the heaviest recorded for Bangkok Mud Snake — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.
An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.
What nobody knows
These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.
- — Length snout to vent · adult male mean
- — Length snout to vent · adult mean
- — Length nose to tail · adult male mean
- — Length nose to tail · adult mean
- — Largest female · snout to vent
- — Largest male · snout to vent
- — Largest female · shell length
- — Largest male · shell length
- — Largest juvenile · snout to vent
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · a typical adult
- — Longest recorded life
- — Preferred body temperature · chosen in a laboratory gradient
- — Body temperature when active · measured in the wild
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How it hunts
- — How the young develop
- — Gestation or incubation
- — Clutches in a year
- — Clutches a year · fewest
- — Clutches a year · most
- — First breeds from · youngest recorded
- — First breeds by · oldest recorded
- — Hatchling length · smallest recorded
- — Hatchling length · largest recorded
- — Age at first breeding · female
- — Mature from · youngest recorded
- — Mature by · oldest recorded
- — Size at maturity · smallest recorded
- — Size at maturity · largest recorded
- — Body temp in the wild · lowest mean recorded
- — Body temp in the wild · highest mean recorded
- — Colour on the back
- — Pattern on the back
- — Sex decided by
- — Population trend
- — Red List criteria
- — Active season · shortest recorded
- — Active season · longest recorded
- — Density · lowest recorded
- — Density · highest recorded
- — Home range · largest recorded
- — Active in
Others in Homalopsidae
Take this data
Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.
This species as JSON · the whole dataset
Cite this page
The Reptile & Amphibian Encyclopedia (2026). Enhydris jagorii. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/enhydris-jagorii
@misc{enhydris_jagorii_2026,
title = {Enhydris jagorii},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/enhydris-jagorii}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Moura, M. R. et al. TetrapodTraits: a database of 33,281 tetrapod species. Used under CC BY 4.0. Observed values only; this encyclopedia does not publish its imputed predictions.
- Catalogue of Life (dataset 3LR), used under CC BY.
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.