Homalopsidae
Siebold's Water Snake
HarmlessFerania sieboldii

The Siebold's Water Snake (Ferania sieboldii) is a non-venomous snake in the Homalopsidae family, recorded in 4 countries.
- Family
- Homalopsidae
About the Siebold's Water Snake
Siebold's water snake (Ferania sieboldii), also known commonly as Siebold's mud snake and Siebold's smooth water snake, is a species of mildly venomous, rear-fanged snake in the family Homalopsidae. The species is endemic to Asia.
Etymology
Both the specific name, sieboldii, and the common name, Siebold's water snake, are in honor of Philipp Franz von Siebold, a German botanist and physician.
Geographic range
F. sieboldii is found in Bangladesh, northcentral India, and western Malaysia.
Habitat
The preferred natural habitat of F. sieboldii is freshwater wetlands.
Description
F. sieboldii has a dorsal pattern of large blotches similar to those of a python, but it is distinctive in having its nostrils on the top of the snout to aid its aquatic lifestyle. It also lacks labial pits.
It may attain a total length (including tail) of 89 cm (35 in). A female of that length had a tail which was 11 cm (4.3 in) long.
Reproduction
F. sieboldii is viviparous.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Siebold's Water Snake
- Is the Siebold's Water Snake venomous?
- No. The Siebold's Water Snake (Ferania sieboldii) is non-venomous and is not considered dangerous to humans. Like most snakes, it will retreat rather than bite when given the chance.
- Is the Siebold's Water Snake poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Siebold's Water Snake is neither poisonous nor venomous.
- Is the Siebold's Water Snake dangerous?
- The Siebold's Water Snake is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Siebold's Water Snake live?
- The Siebold's Water Snake has verified records in 4 countries, including India, Nepal, Iran (Islamic Republic of). See the distribution section below for its full range.
- Why is it called the Siebold's Water Snake?
- Both the specific name, sieboldii, and the common name, Siebold's water snake, are in honor of Philipp Franz von Siebold, a German botanist and physician.
Where it is found
More Homalopsidae snakes
Southeast Asian BockadamCerberus schneiderii
Puff-faced Water SnakeHomalopsis buccata
Rainbow Mud SnakeEnhydris enhydris
Murphy's Mud SnakeHypsiscopus murphyi
Rice Paddy SnakeHypsiscopus plumbeus
Chinese Water SnakeMyrrophis chinensis
Jack's Water SnakeHomalopsis mereljcoxi
White-bellied Mangrove SnakeFordonia leucobalia
Classification
How scientists group this snake, from the broadest category down to the exact species. Each step narrows to its closest relatives.
- OrderThe broad group of scaled reptiles: all snakes and lizards
- Squamata
- FamilyA group of related snakes that share key traits
- Homalopsidae
- GenusA close-knit group of very similar species
- Ferania
- SpeciesThis exact snake, named in the two-part scientific name
- Ferania sieboldii
Keep learning
- What to Do If You Find a SnakeFound a snake at home or on a trail? Here is how to stay calm, give it space, identify it safely, and know when to call a professional.
- Venomous vs Nonvenomous: How to Tell the DifferenceThe folk rules for telling venomous snakes apart, where each one fails, and why location-based identification beats guessing by sight.
- What Is a Snake? Anatomy and the BasicsA clear overview of what makes a snake a snake: limbless body plan, anatomy, evolution from lizards, species diversity, and why they are ectothermic.
- How to Keep Snakes Out of Your Yard and HomeA practical guide to keeping snakes out of your yard and home using habitat changes that work, plus what to skip and what to do if one shows up.
Distribution from GBIF & iNaturalist. Venom status per CDC. Background: Wikipedia. Informational only. Never handle a snake to identify it.