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.

[3] Some specimens may have black rings that are irregular, incompletely formed or even absent.

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).

[2] The Bismarck ringed python inhabits rain forests in open and/or cultivated areas,[3] and is often found in piles of coconut husks.

[3] Oviparous, they lay up to a dozen eggs that are generally "brooded" by the female, although this is not always the case.