NO. 2028. PHILIPPINE LAND MAMMALS— HOLLISTER. 317 



EPIMYS TYRANNUS Miller. 



Specimen. — One, the type, from Ticao (P. B. S.). 



EPIMYS NORVEGICUS (Erxleben). 



Specimens. — Thirty-seven, from locahties as follows: 

 Luzon: Aparri, 1 (Mearns); Manila, 30 (Mearns). 

 Mindoro: Calapan, 2 (Mearns). 

 Panay: Ilo-ilo, 1 (Fox). 

 Mindanao: Zamboanga, 3 (Mearns;. 



EPIMYS MAGNIROSTRIS (Mearns). 



Specimens. — Two, including the type, from Mindanao: Zamboanga 

 (Mearns). 



This species proves to be an aberrant member of the rattus group, 

 related to the forms on Mindanao and the adjacent islands, and to 

 true neglectus. The supraorbital beads are much less rounded than 

 is usual in species of the rattus group, and are in fact much as in E. 

 norvegicus; but the teeth are typical of the rattus group. 



EPIMYS COLORATUS, new species. 



Type. — From Musser's Plantation, 3 miles west of Isabela, Basilan 

 Island. Adult female (teeth considerably worn), skin and skull, 

 U. S. National Museum No. 144571. Collected February 21, 1906, 

 by Dr. Edgar A. Mearns. Orig. No. 6044. 



Diagnosis. — A member of the rattus group related to E. magnirostris 

 of Zamboanga, but differing in having the underparts dark grayish- 

 buff, and the skull smaller, short, broad, and more heavily built. 

 Pelage harsh. 



Color. — General color above and on sides dark russet-brown; the 

 hairs gray at bases and mixed with numerous brown-tipped, yellowish 

 spines, especially forward. Underparts grayish-buff, blending with 

 color of upperparts without distinct Une of demarcation. The pelage 

 below is made up of buffy spines and softer hairs of gray. Throat 

 and anal regions with numerous pure ochraceous hairs. Hands and 

 feet marked with broad bands of blackish-brown, extending from 

 color of arms and legs along upper surface to base of digits; digits 

 pale buffy white. 



SlcuU and teeth. — Skull smaller than skuU of E. rnagnirostris; larger 

 than that of E. neglectus of Borneo; heavier built and more arched, 

 with relatively wider braincase; supraorbital beads especially heavy, 

 more curved on parietals than in magnirostris, which has the beads 

 almost parallel, much as in species of the norvegieus group. Teeth as 

 in magnirostris; considerably larger than in neglectus. 



Measurements of type (from well-made sMn). — Head and body, 211 

 mm.; tail. 222; hind foot, without claw, 34. Skull: Greatest length, 

 42.8; condylobasal length, 41.8; palatal length, 24.2; zygomatic 



