Burmese Tree Rat

The Burmese tree rat, also called Fea's tree rat or the Indochinese chiromyscus, is a small arboreal murid. Its coarse upper fur is orange-brown, with a yellower head, while the underparts are entirely white and sharply divided from the back along the flanks. Head-and-body length is 13.8–16 cm and the tail 20–23.3 cm (Wikipedia, cited general species account).

It occurs in southern Yunnan, eastern Myanmar, northern Thailand, Laos and Vietnam. Specialist descriptions warn that it can be confused with the Langbian tree rat, but distinguish it using dental and skull characters, a bicoloured or mottled tail, broader orange upperparts and a nail-like claw on each hallux (Mammal Species of the World).