Gray-bellied pencil-tailed tree mouse

The gray-bellied pencil-tailed tree mouse, Chiropodomys muroides, is an arboreal rodent in the family Muridae that is found only on the island of Borneo. It is recorded from Gunung Kinabalu in Sabah, Malaysia, and from Long Petak in northern Kalimantan, Indonesia, though the source article says it probably has a wider distribution than the records so far show. Its natural habitat is montane tropical forest, where it lives in the trees. Habitat loss is named as the threat to the species. The article gives nothing further about its diet, breeding, size or daily activity, so none of that is claimed here, and the species page will gain those facts if later sources state them.