Pythonidae
Bismarck Ringed Python
HarmlessBothrochilus boa


2 photographs of the Bismarck Ringed Python. Ceridwenanwyl, no known copyright restrictions (public domain).
The Bismarck Ringed Python (Bothrochilus boa) is a non-venomous snake in the Pythonidae family, recorded in 5 countries.
- Family
- Pythonidae
About the Bismarck Ringed Python
The Bismarck ringed python (Bothrochilus boa) is a species of snake in the genus Bothrochilus found on the islands of the Bismarck Archipelago. No subspecies are recognized.
Description
Adults grow to a length of 152–183 cm (4.99–6.00 ft). The color pattern consists of a series of brilliant orange and black rings in juveniles, but this fades in about a year as the snakes mature. Adults are usually a shade of brown with black rings, or a uniform blackish brown. Usually, there is a light spot behind the eye. Some specimens may have black rings that are irregular, incompletely formed or even absent. The scales are highly iridescent.
Distribution and habitat
Found on the islands of the Bismarck Archipelago, including Umboi, New Britain, Gasmata (off the southern coast), Duke of York and nearby Mioko, New Ireland and nearby Tatau (off the east coast), the New Hanover Islands and Nissan Island, the type locality given is "Nouvelle Irlande" (New Ireland). The Bismarck ringed python inhabits rain forests in open and/or cultivated areas, and is often found in piles of coconut husks.
Behavior
These snakes are nocturnal and fossorial.
Feeding
Their diet consists primarily of small rodents, for which they actively forage. They have been reported to enter houses and agricultural structures in search of prey. Hatchlings feed on lizards and juvenile rodents.
Reproduction
Oviparous, they lay up to a dozen eggs that are generally "brooded" by the female, although this is not always the case.
Adapted from Wikipedia, available under CC BY-SA.
Frequently asked: Bismarck Ringed Python
- Is the Bismarck Ringed Python venomous?
- No. The Bismarck Ringed Python (Bothrochilus boa) 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 Bismarck Ringed Python poisonous?
- Snakes are venomous, not poisonous. "Poisonous" means harmful to eat or touch; "venomous" means injecting toxins through a bite. The Bismarck Ringed Python is neither poisonous nor venomous.
- Is the Bismarck Ringed Python dangerous?
- The Bismarck Ringed Python is not dangerous to humans. It has no medically significant venom and bites only defensively if cornered or handled.
- Where does the Bismarck Ringed Python live?
- The Bismarck Ringed Python has verified records in 5 countries, including Papua New Guinea, Solomon Islands, Australia. See the distribution section below for its full range.
- What does the Bismarck Ringed Python eat?
- Their diet consists primarily of small rodents, for which they actively forage. They have been reported to enter houses and agricultural structures in search of prey. Hatchlings feed on lizards and juvenile rodents.
Where it is found
More Pythonidae snakes
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
- Pythonidae
- GenusA close-knit group of very similar species
- Bothrochilus
- SpeciesThis exact snake, named in the two-part scientific name
- Bothrochilus boa
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.







