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Rajah spiny rat
The Rajah spiny rat (''Maxomys rajah'') also known as the brown spiny rat is endemic to Thailand and Malaysia, Sumatra, Borneo and the adjacent islands (Payne'' et al.'', 1985). Corbet and Hill (1992) mention that Maxomys rats are often the most common rodent in the Southeast Asian tropical forest, from most of the Malay Archipelago to Sulawesi, Palawan and Borneo. This species can be found in primary forest and logged-over forest. According to Payne ''et al.'',(1985) this species lives in primary or secondary forest and tends to favour sandy and lowland sites. This terrestrial species is mostly active on the ground but occasionally climbs into the upper canopy. Its tend to live separately from other rats.
''M. rajah'' is medium in size where the upperparts are brown, darker in the midline, with numerous stiff gray-brown spines. The underparts are white with many short, white spines, and usually with a dark brown streak along the middle in adults, but never with an orange throat patch. The white color of the underparts extend down in a narrow line to the feet. Above the tail is brown, pale below and thinly haired. Usually, the range of the measurement of ''M. rajah'' are HB 138.1-218, T 142-210, T/HB = 102.9-109.3%, HF 33.8-43, E 21.9-22.3, Wt 71-218 g, D 1003/1003=16, M 2+2=8. Skull: gl 40.9-48.6, iob 6.6-7.4, mt 6.9-8.1.The immature Red Spiny Rats, ''M. surifer'' is similar ''M. rajah'' and quite difficult to distinguish. (Payne ''et al.'', 1985).
''M.rajah'' is a common species but Yasuda ''et al.'', (2000) reported that very little is known about the ecological features of ''Maxomys'' rats.
==References ==
* Corbet, G.B and Hill, J.E.(1992). ''The mammals on the Indomalayan region: a systematic review''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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