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Rajah spiny rat

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Rajah spiny rat
Scientific classificationEdit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Family: Muridae
Genus: Maxomys
Species:
M. rajah
Binomial name
Maxomys rajah
(Thomas,1894)

TheRajah spiny rat(Maxomys rajah) also known as thebrown spiny ratis endemic to Thailand and Malaysia,Sumatra,Borneo,and adjacent islands (Payneet al.,1985).

Distribution and ecology

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Corbet and Hill (1992) mention thatMaxomysrats are often the most common rodent in the Southeast Asian tropical forest, from most of theMalay ArchipelagotoSulawesi,PalawanandBorneo.This species can be found inprimary forestand logged-over forest. According to Payneet 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.rajahis a common species but Yasudaet al.(2000) reported that very little is known about the ecological features ofMaxomysrats.

Morphology

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M. rajahis 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 ofM. rajahare 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. suriferis similarM. rajahand quite difficult to distinguish. (Payneet al.,1985).

References

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  1. ^Ruedas, L. (2016)."Maxomys rajah".IUCN Red List of Threatened Species.2016:e.T12904A22455724.doi:10.2305/IUCN.UK.2016-2.RLTS.T12904A22455724.en.Retrieved17 November2021.
  • Corbet, G.B and Hill, J.E.(1992).The mammals on the Indomalayan region: a systematic review.Natural History Museum Publications and Oxford University Press.
  • Payne, J., Francis, C.M. and Phillipps, K. (1985).Field guide to mammals of Borneo.The Sabah Society with World Wildlife Fund Malaysia.
  • Yasuda, M., Miura, S. and Hussein, N.A. (2000). Evidence for food hoarding behavior in terrestrial rodents in Pasoh forest reserve, a Malaysian lowland rain forest.Journal of Tropical forest Science.
  • Shadbolt, A. B and Ragai, R. (2010) Effects of habitat fragmentation on the movement patterns and dispersal ability of the brown spiny rat (Maxomys rajah) in the planted forest zone of Sarawak, Eastern Malaysia. Biodiversity and Conservation 19(2): pp 531 – 541.
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