32 HOLLISTER.' 



Mus castaneus Waterhouse. 



1843. Mus castaneus Waterhouse, Ann. and Mag. Nat. Hist., 1 2, 134. 



Type locality. — Philippine Islands. Cebu (Elera) ; Luzon 

 (Elera). 



Mus commissarius Mearns. 



1905. Mus commissarius Meaens, Proc. U. S. Nat. Mus., 28, 449. 



Type locality. — Davao, Mindanao. Luzon (Miller) ; Mindanao 

 (Mearns). 



Elera's record of Mus musculus doubtless belongs here. It 

 seems strange that Mus musculus should not occur in the Phil- 

 ippine Islands; but all the specimens of true Mus from the 

 Islands, in the collection of the United States National Museum, 

 prove to be Mus commissarius Mearns. Possibly M. commis- 

 sarius=M. castaneus Waterhouse. 



Genus TARSOMYS Mearns. 



1905. Tarsomys Mearns, Proc. Biol. Soc. Wash., 28, 453. Type. — 

 Tarsomys apoensis Mearns. 



Resembling Epimys. Pelage long and rather coarse, some- 

 times slightly spiny. Tail concolor, quite thickly haired; toes 

 tufted at base of claws. General color rich brownish-slate, more 

 yellowish-brown below. Head and body, 135 millimeters; tail, 

 120; hind foot, 32. 



Tarsomys apoensis Mearns. 



1905. Tarsomys apoensis Mearns, Proc. U. S. Nat. Mus., 28, 453. 



Type locality. — Mount Apo, Mindanao; 2,057 meters. Min- 

 danao (Mearns). 



Genus BATOMYS Thomas. 



1895. Batomys Thomas, Ann. and Mag. Nat. Hist., VI, 16, 162. 

 Type. — Botomys grantii Thomas. 



Large, very heavily furred rats. Ears broad and rounded; 

 tail slightly shorter than head and body. Upper parts dark, 

 rich fulvous brown, below paler. Head and body about 200 

 millimeters ; tail about 185 ; hind foot, 36. 



Batomys dentatus Miller. 



1910. Batomys dentatus MiLLER, Proc. U. S. Nat. Mus., 38, 400, 

 August 19. 



Type locality. — Haights-in-the-Oaks, Benguet, Luzon, 2,134 

 meters. Luzon (Miller). 



Batomys grantii Thomas. 



1895. Batomys grantii Thomas, Ann. and Mag. Nat. Hist., VI, 16, 162. 



Type locality. — Highlands of northern Luzon. Luzon (Tho- 

 mas). 



