Mountain water rat

The mountain water rat (Baiyankamys habbema) is a semiaquatic species of rodent in the family Muridae. It is found in West Papua, Indonesia, and in Papua New Guinea, and its natural habitat is rivers. The only reference its Wikipedia article cites for the species is the treatment of the superfamily Muroidea by Musser and Carleton in the third edition of Mammal Species of the World (2005), and the article is brief, so detailed accounts of its diet, breeding and population are not available in the source and are not stated here. What the source does establish is its group, the family Muridae, its two-country range on the island of New Guinea and its life beside rivers.