This species is known with certainty only from southeastern Papua New Guinea, with records from: the mountains behind Port Moresby; the foothills of Mount Obree in Central Province; the southern Owen Stanley Mountains; Fergusson and Normanby islands in the D’Entrecasteaux group; and Kwatto island (just off the southermost part of New Guinea) (Kraus and Allison, 2007). Records from Sudest (Tagula) island in the Louisiade Archipelago have been provisionally assigned to this species (Kraus and Allison, 2007). Its distribution is still very poorly known, and it might occur elsewhere. It has been recorded from sea-level up to 800m asl.
Habitat and Ecology
This species occupies low-elevation and mid-elevation streams in forest with flow rates varying from fast to stagnant (Kraus and Allison, 2007). Adults are most often encountered at night along the banks and in the beds of streams with substrates of cobbles, rocks, or boulders. Animals have occasionally been found traversing the forest at night on ridges well away from water. It breeds in streams. It adapts to anthropogenic environments, occurring, for example, along somewhat disturbed lowland streams in secondary habitats (F. Kraus pers comm.).
It is a fairly common species.
It is an adaptable species for which there are no obvious threats.
It has not been confirmed to occur in any protected areas.
Kraus and Allison (2007) resurrected this species from the synonymy of Rana daemeli. It is closely related to R. aurata and R. volkerjane.
Fred Kraus 2008. Hylarana milneana. In: IUCN 2014