318 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.46. 



breadth, 20.4; interorbital breadth, 6.6; mastoid breadth, 16.9; 

 upper tooth row, alveoU, 8.1; mandible, 26.1; lower tooth row, 7.2. 



Specimens. — Six, from the tj^pe locality: Basilan: Isabela (Mearns, 

 Musser). 



EPIMYS ROBIGINOSUS, new species. 



Type. — From Cagayancillo, Cagayan Island. Adult male (teeth 

 considerably worn), skin and skull. Coll. PhiUppine Bureau of Science 

 No. 33. Collected February 7, 1903, by R. C. McGregor and A. 

 Celestino. 



Diagnosis. — A member of the rattus group; most Hke E. coloratus 

 of Basilan, but with the sides, limbs, hands, and feet very much 

 lighter, the feet buffy-white, rarely marked with a faint brownish 

 band above. Underparts cream color, sharply marked from color 

 of sides, the hairs unicolor or very slightly darkened with gray at 

 bases. Skull like that of coloratus but with supraorbital beads much 

 more curved on parietals, nearly pyriform; palatine foramina wide 

 and bowed. Teeth smaller, only sUghtly larger than in neglectus 

 from Borneo. 



Measurements of type (from well-made skin). — Head and body, 217 

 mm.; tail, 187. Skull: Greatest length, 43.6; condylobasal length, 

 42.4; zygomatic breadth, 21.3; mastoid breadth, 16.8; interorbital 

 breadth, 7.0; upper tooth row, 7.3; mandible, 25.1; lower tooth row, 

 6.3. 



Specimens. — Twelve from the type locahty, all in the collection of 

 the PhiHppine Bureau of Science. 



Cagayan: Cagayancillo, 12 (P. B. S.). 



EPIMYS RATTUS (Linnaeus). 



Specimens. — Eight, from locahties as follows: 

 Luzon: Manila, 2 (Mearns, Fox). 

 Panay: Ilo-ilo, 6 (Fox). 



EPIMYS MINDANENSIS (Mearns). 



Specimens. — One hundred and three, from the following localities: 



Luzon: Baguio, Benguet, 22 (Mearns); Laoag, Ilocos Norte, 6 

 (Mearns); Manila, 12 (Mearns); San Isidro, 1 (Lewis). 



Catanduanes: Bagamanoc, 3 (Mackie); Baras, 1 (Mackie); Biga, 1 

 (Mackie); Calolbong, 2 (Mackie); Caramoran, 1 (Mackie); "Catan- 

 duanes," 2 (Mackie); Jimoto, 1 (Mackie); Pandan, 2 (Mackie). 



Mindoro: Alag River, 18 (Mearns); Bulalacao, 1 (Mearns); Mount 

 Halcon, 1 (Mearns); Mount Malindang, 2 (Mearns); San Jose, 2 (Fox). 



Batan: 1 (P. B. S.). 



Romblon: 1 (P. B. S.). 



Masbate: 1 (P. B. S.). 



Ticao: 7 (P. B. S.). 



Panay: "Ilo-ilo, 2 (Fox). 



Negros: 2 (Steere). 



