Rattus morotaiensis Kellogg, 1945. Proc. Biol. Soc. Washington, 58:66.
TYPE LOCALITY: Indonesia, Moluccas, Pulau Morotai, off N coast of Pulau Halmahera.
DISTRIBUTION: Recorded only from Morotai Isl but probably occurs on Halmahara and nearby islands.
COMMENTS: A distinctive species probably related to native Rattus of New Guinea.