NO. 2028. PHILIPPINE LAND MAMMALS— HOLLISTER. 325 



Specimens.— Three, from the type-locality: Mindanao: Grand 

 Malindang Mountain (Mearns). 



LIMNOMYS PICINUS, new species. 



Type. — -From spur of main ridge of Mount Halcon (4,500 feet), 

 Mindoro. Adult female (teeth moderately worn), skin and skull, 

 U. S. National Museum No. 144605. Collected November 16, 1906, 

 by Dr. Edgar A. Mearns. Orig. No. 6311. 



Diagnosis.— -Size medium; tail and ears short; coloration wholly 

 different from the other known members of the group, blackish above, 

 dusky below. Pelage long and very soft. 



Color. — ^Above blackish, the head, forward part of body, and sides, 

 finely lined with ochraceous-buff. The hairs are uniformly dark 

 neutral gray, with narrow tips of ochraceous-buff. Scattered through 

 the pelage of back are numerous overlying hairs of pm-e black, which 

 greatly reduce the effect of the ochraceous tips on the ordinary hairs. 

 Center of back and rump almost pure blackish; cheeks hghter, more 

 grayish-buff. Underparts dark grayish-drab, not sharply marked 

 from color of sides, the hairs gray at bases, tipped with drab. Hands 

 and feet brownish-black, the digits with long yeUo wish-white hairs; 

 tail brownish-black above, slightly lighter, more brownish, below. 



SlcuU and teeth. — Skull smaller than that of L. sihuanus, larger than 

 m L. meamsi; in general shape more like that of mearnsi, with wide, 

 rounded braincase and indistinct beadmg. Teeth shghtly larger than 

 in meamsi; much larger than in sihuanus. 



Measurements of type. — Total length, 205 mm.; tail vertebrae, 100; 

 hind foot, 28. Skull: Condylobasal length, 26.7; zygomatic breadth, 

 14.9; breadth of braincase, 14.4; length of nasals, 10.1; upper tooth 

 row, crowns, 5.4; mandible, 16.2. 



Specimen. — One, the type, from Mindoro : Mount Halcon (Mearns) . 



This species is so different m color from the other two known forms 

 of Limnomys that no direct comparison is necessary. 



TRYPHOMYS ADUSTUS Miller. 



Specimen. — One, the type, from Luzon: Haights-in-the-oaks 



(Mearns) . 



MUS COMMISSARIUS Mearns. 



Specimens. — Sixty-five, from locahties as follows: 



Luzon: Manila, 55 (Mearns, Fox, U. S. Bur. Fish.); San Fernando 

 de Union, 3 (Lewis). 



Panay: Ilo-ilo, 3 (Fox). 



Mindanao: Davao, 2, including the type (Mearns); Margo Satiibig, 

 1 (Kierulff); Zamboanga, 1 (Mearns). 



The common Mus musculus, introduced into almost aU parts of the 

 world, continues to be unknown from the Philippine Islands. 



