Rattus annandalei (Bonhote, 1903) . In Annandale, Fasciculi Malayenses, Zool., pt. 1:30.

TYPE LOCALITY: Malaysia (Malay Peninsula), S Perak, Sungkei .

DISTRIBUTION: Malay Peninsula, Singapore, E Sumatra, and islands of Padang and Rupat off the coast of E Sumatra (see Musser and Newcomb, 1983:515, and references therein).

SYNONYMS: bullatus, villosus .

COMMENTS: A Sundaic endemic; superficially resembles Sundamys muelleri and some species of Rattus in primitive external, cranial, and dental features, but in other specialized traits R. annandalei is unlike any species of Sundamys and may even eventually be removed from Rattus (Musser and Newcomb, 1983) .