Müller's Giant Sunda Rat (Sundamys muelleri)


HB: 250; T: 269; HF: 50; E: 24; W: 379g

A giant shaggy rat which is blackish brown above, buff underneath, not sharply demarcated along the flanks. feet larger than 45mm in length and a black tail. Mammae 2+2. The skull is like Rattus  but has larger teeth, smaller bullae, and no post dental palate

Range Description:

This species is known from south western peninsular Myanmar, Peninsular Thailand, Malay Peninsula, Sumatra, Borneo, and Palawan, as well as on the smaller islands of Siantan (Anamba Island), many of the Riau Islands, Tuangku and Bangkuru (Banjak Islands), Mansalar (Western Sumatra), Pinie, Tanahmasa and Tanahbala (Batu Islands), Banka, Bunguan and Serasan (Natuna Islands), Karimata Island (south western Borneo), Sebuku (South Eastern Borneo), Balembangan and Banggi (Northern Borneo), and Balabac, Culion, and Busuanga (Palawan Faunal Region) (Musser and Carleton 2005). It does not occur on Java.
Countries: Native:
Brunei Darussalam; Indonesia; Malaysia; Myanmar; Philippines; Thailand


This species is presumably common, as there are large series from several collecting localities, but population numbers are likely to be declining.
Population Trend: Decreasing

Habitat and Ecology:

This species is primary forest and secondary growth (Sanborn 1952; Md Nor 2001). It is generally a lowland species, reaching 1,650 m on slopes of Mt. Kinabalu in Sabah (Md Nor 2001). It is often found near streams and prefers moist habitats (Lim 1970; Esselstyn et al. 2004). It is primarily terrestrial, though it is found on branches of trees (Lim 1970). The diet consists of insects, fruit, leaves and shoots, other vegetable matter, crabs, and land snails (Medway 1969; Lim 1966, 1970).
Systems: Terrestrial

Major Threat(s):

It is likely to be affected by ongoing habitat loss across much of its range. It is probably hunted in non-Muslim parts of its range.

 Conservation Actions:

 It is present in several protected areas across its range.