Colubridae
Boie's Keelback
HarmlessTropidonophis spilogaster


2 photographs of the Boie's Keelback. (c) Slunky, some rights reserved (CC BY).
The Boie's Keelback (Tropidonophis spilogaster) is a non-venomous snake in the Colubridae family, recorded in 5 countries.
- Family
- Colubridae
About the Boie's Keelback
Tropidonophis spilogaster, commonly known as the northern water snake or Boie's keelback, is a keelback snake in the family Colubridae found in the Philippines on the islands of Catanduanes, Polillo, Calayan and in the province of Bataan on the island of Luzon. The snake's venom toxicity is unknown due to lack of study.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Boie's Keelback
- Is the Boie's Keelback venomous?
- No. The Boie's Keelback (Tropidonophis spilogaster) 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 Boie's Keelback poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Boie's Keelback is neither poisonous nor venomous.
- Is the Boie's Keelback dangerous?
- The Boie's Keelback is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Boie's Keelback live?
- The Boie's Keelback has verified records in 5 countries, including Australia, Papua New Guinea, Indonesia. See the distribution section below for its full range.
Where it is found
More Colubridae snakes
Common keelbackTropidonophis mairii
Barred keelbackTropidonophis doriae
Painted keelbackTropidonophis picturatus
Spotted Water SnakeTropidonophis dendrophiops
Negros Spotted Water SnakeTropidonophis negrosensis
Tropidonophis halmahericusTropidonophis halmahericus
Many-scaled keelbackTropidonophis multiscutellatus
Halmahera KeelbackTropidonophis punctiventris
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
- Colubridae
- GenusA close-knit group of very similar species
- Tropidonophis
- SpeciesThis exact snake, named in the two-part scientific name
- Tropidonophis spilogaster
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.