Snakes in the genus Morelia are generally arboreal to semiarboreal, spending much of their lives in the forest canopy. Although exceptions occur, most may attain an adult total length (including tail) of 2–3 m (6.6–9.8 ft).
Indonesia (southern Western New Guinea in Merauke Regency), Papua New Guinea (the southern Western Province, the Port Moresby area of Central Province and on Yule Island) and Australia (excluding much of the center and northwest of the country)
Indo/Papuan: Indonesia (Misool, Salawati, the Aru Islands, the Schouten Islands, most of Western New Guinea), Papua New Guinea (including nearby islands from sea level to 1,800 m elevation, Normanby Island and the d'Entrecasteaux Islands)
^Scanlon, J.D. (2001). "Montypythonoides revisited: the Miocene snake Morelia riversleighensis (Smith and Plane, 1985) and the question of pythonine origins". In Hand, S.J.; Laurie, J.R. (eds.). Riversleigh Symposium 1998: Proceedings of a Research Symposium on Fossils from Riversleigh and Murgon, Queensland, held at the University of New South Wales, December, 1998. Memoirs of the Association of Australasian Palaeontologists 25. pp. 1–35.