Order Rodentia - Family Muridae Author Guy G. Musser Author Michael D. Carleton text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 501 755 book chapter http://doi.org/10.5281/zenodo.7353098 1-56098-217-9 7353098 Rattus sikkimensis Hinton, 1919 . J. Bombay Nat. Hist. Soc., 26:394 . TYPE LOCALITY: India , Sikkim , Pashok, 3500 ft . DISTRIBUTION: S China (incl. islands of Hong Kong and Hainan), Vietnam , Laos , Cambodia , Thailand (incl. Koh Klum off SE Thailand in the Gulf of Siam ), C and N Burma , NE India ( Sikkim , Darjeeling, Bhutan ), and possibly E Nepal . Not recorded on the mainland of peninsular Thailand south of Isthmus of Kra ( 10°30'N ), but occurs on four islands (Koh Tau, Koh Pangan, Koh Samui, and Koh Kra) off the coast well south of the Isthmus (see map in Musser and Heaney, 1985). SYNONYMS: hainanicus, klumensis, koratensis, kraensis, remotus , yaoshanensis. COMMENTS: Originally described as a subspecies of R. rattus (Hinton, 1919) , then listed as a synonym of R. r. brunneusculus ( Ellerman, 1961 ) . South Vietnamese samples discussed under R. sladeni ( Van Peenen et al., 1969 ) , N Vietnamese series under R. koratensis ( Dao, 1985 ), and Thai samples under R. koratensis and R. remotus (J. T. Marshall, Jr., 1977a) .