The Sikkim rat (Rattus andamanensis ) is a species of rodent in the family Muridae.
It is found in Bhutan, Cambodia, China, India, Laos, Myanmar, Nepal, Thailand, and Vietnam. The rat's coloring is brownish upperparts and a white undersideRattus andamanensis have 2 rRNA genes, 22 tRNA genes, and 13 protein-coding genes, for a total of 37 genes which is similar to that of other vertebrates
