Bartels's spiny rat

Bartels's spiny rat (Maxomys bartelsii) is a medium-sized rodent in the family Muridae that is found only in Indonesia, where it is endemic to the montane forests on the volcanoes of western and central Java. The type specimen came from Gunung Pangerango-Gede at about 1,830 metres. The species is able to tolerate moderate disturbance and can be found at the edge of the forests as well, and it is among the most common rats in parts of Gunung Gede Pangrango National Park. Adults measure about 127 to 178 millimetres from head to rump with a tail of 117 to 170 millimetres, and one recorded weight is 93 grams. The coat is short, soft and dense, sooty black above with a more mahogany tone along the sides, and grayish white beneath. The tail is blackish at the base and fades to yellowish white toward the tip. Females carry three pairs of mammae. Its diet, breeding and social life are not recorded. The IUCN Red List rates it Least Concern, noting a fairly small range but no major threats.