Order Rodentia - Family Muridae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 1189 1531 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Tarsomys Mearns 1905 Tarsomys Mearns 1905 , Proc. U. S. Natl. Mus ., 28: 453 . Type Species: Tarsomys apoensis Mearns 1905 Species and subspecies: 2 species: Species Tarsomys apoensis Mearns 1905 Species Tarsomys echinatus Musser and Heaney 1992 Discussion: Rattus Division. Revised by Musser and Heaney (1992) , who recorded history of the incorrect inclusion of Tarsomys in Rattus and placed the genus among the Philippine New Endemics. Phylogenetic analyses of complete mtDNA cytochrome b sequences for 13 of the 16 genera of endemic Philippine murines place Tarsomys as sister-taxon to Limnomys , and in a clade with Bullimus and Rattus everetti , which are also New Endemics ( Jansa and Heaney, 2001 ); this alliance and membership in the Rattus Group also supported by chromosomal data (Rickart and Heaney, 2002).