The back is grayish brown with a dark rufous midline, and the belly is sharply demarcated creamy white. The species account describes it as nocturnal and arboreal.
HMW describes gray-brown fur above, darker rufous fur along the midline, and a sharply demarcated creamy-white belly that may have an orange tinge.
The 2017 HMW account explicitly describes the Eastern Rainforest Thicket Rat as nocturnal and arboreal.
An extinction-risk assessment has not been added yet.