Small Luzon Apomys

discussion

Discussion: Included within Apomys abrae hylocetes Group by Musser (1982 b). Phylogenetic analyses of mtDNA cytochrome b sequences identifies M. musculus, an undescribed species from Sibuyan Isl and Negros Isl, and another undescribed species from Sibuyan Isl as the closest phylogenetic allies to A. microdon (Steppan et al., 2003). Ellerman (1949) provided hollisteri as a replacement name for Apomys microdon because it was preoccupied by Mus microdon Peters (1852), which is a form of Mastomys, and Ellerman had included both Apomys and Mastomys in Rattus. Corbet and Hill (1992: 379) used hollisteri as the correct name stating that microdon was permanently invalid following Article 59 (b) of the 3 rd edition of the International Code of Zoological Nomenclature (International Commission on Zoological Nomenclature, 1985 d), which states that a " junior secondary homonym replaced before 1961 is permanently invalid. " But according to article 59.3 of the 4 th edition of the Code (ICZN, 1999), a " junior secondary homonym replaced before 1961 is permanently invalid unless the substitute name is not in use and the relevant taxa are no longer considered congeneric, in which case the junior

Order Rodentia - Family Muridae

distribution

Distribution: Endemic to the Greater Luzon Faunal Region and widespread on Luzon in secondary lowland forest and primary montane forest (Heaney et al., 1991; Heaney et al., 1998; Heaney et al., 1999; Musser and Heaney, 1992). Formerly thought to also occur on Leyte and Dinagat (Musser, 1982 b), but those samples have been referred to A. littoralis.

Order Rodentia - Family Muridae

discussion

COMMENTS: Included within " Apomys abrae-hylocetes Group " by Musser (1982 b).

Order Rodentia - Family Muridae

distribution

DISTRIBUTION: Cataduanes and lowlands of S Luzon (Musser and Heaney, 1992). Formerly and incorrectly thought to also occur on Leyte and Dinagat (Musser, 1982 b).

Order Rodentia - Family Muridae