Peninsular Thailand, peninsular Malaysia, Sumatra, Lingga Archipelago, Borneo and offshore islands
The pygmy treeshrew is native to Thailand, Malaysia and Indonesia, distributed in peninsular Thailand, peninsular Malaysia, Sumatra, the Lingga Archipelago, Borneo and offshore islands such as Laut, Banggi and Balambangan. The generic name comes from the Malay word tupai, meaning squirrel or small squirrel-like animals (Wikipedia, general species account).
Description: Wildlife of Malaysia guide, Wildlife of Everywhere (wildlifeofeverywhere.com); general species information paraphrased from Wikipedia (CC BY-SA)
Mammals of the World