Bockadam
Cerberus rynchops
A common brackish-water snake of Asian mangroves and estuaries, feeding mainly on fish and known for its dog-like snout.
- Venomous?
- Mildly venomous
- Adult length
- 60-90 cm (24-35 in)
- Range
- South and Southeast Asia
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Overview
The Bockadam, or dog-faced water snake, is a widely distributed homalopsid snake found in brackish and coastal waters throughout South and Southeast Asia. Its common name references its somewhat elongated, dog-like snout profile.
It is mildly venomous with rear fangs adapted for subduing fish prey, and while bites can occur when handled, it is not considered dangerous to humans.
How to identify it
- Stout, rough-scaled body adapted to aquatic life
- Grayish to olive-brown coloration with darker mottled bands or blotches
- Elongated snout with nostrils and eyes positioned for surface breathing while mostly submerged
- Rough, keeled scales giving a somewhat unkempt texture
- Adult length typically 60-90 cm (24-35 in)
Habitat & range
Common in mangroves, estuaries, tidal creeks, and coastal brackish waters across South and Southeast Asia, from India and Sri Lanka through Southeast Asia. Tolerates a range of salinities from fresh to brackish water.
Behavior, diet & reproduction
Primarily nocturnal, foraging in shallow water and mud for fish, its main prey, along with occasional crustaceans. Uses mild venom delivered via rear fangs to subdue prey. Reproduction is viviparous, with live young born in the water.
Frequently asked questions
Is the Bockadam venomous?
It is mildly venomous with rear fangs but is not considered dangerous to humans.
Where does the Bockadam live?
It inhabits mangroves, estuaries, and brackish coastal waters across South and Southeast Asia.
What does it eat?
It feeds mainly on fish, along with occasional crustaceans.
How big does it get?
Adults typically reach 60-90 cm (24-35 in).
Bockadam guides
In-depth guides for identifying and understanding Bockadam.
