Apomys Mearns, 1905 . Proc. U.S. Natl. Mus., 28:455.

TYPE SPECIES: Apomys hylocoetes Mearns, 1905 .

COMMENTS: At one time included in Rattus, but is a distinct genus and forms a monophyletic group of its own within the assemblage of Philippine Old Endemics (Musser and Heaney, 1992). Taxonomic history of the genus and preliminary systematic revision provided by Musser (19826); additional taxonomic notes and phylogenetic relationships outlined by Musser and Heaney (1992). Undescribed species recorded from Negros and Sibuyan islands (Musser and Heaney, 1992); actual distribution in archipelago and number of species still unknown.