444 



PROCEEDINaS OF THE NATIONAL MUSEUM. vol. xxvm. 



Color — Upperparts cinnamon-russet, mixed with gray and black; 

 sides bordered by clear cinnamon; underparts pale drab-gray; feet 

 whitish dral), with a stripe of hair brown on upper surface; tail gray- 

 ish brown; whiskers black; anterior face of incisor teeth ochraceous. 



Shull and teeth. — Skull small, narrow, with a sliort and narrow ros- 

 trum, braincase convex above, and with supraorbital bead bending 

 evenly outward posteriorly, without a marked prominence at the outer 

 extremit}^ of the fronto-parietal suture; zygomatic arches very slen- 

 der; temporal fossa ridged; audital bullae small, very narrow, and 

 rather high; dentition weak. 



Specimens examined. — Only the type. 



Cranial meaHurciiietds of tJte ti/pe, an adult male, from Zamboanga, Mindanao. 



Measurement. 



Basilar length ( Hcnscl > 



Occipito-nasal length 



Intcrjiariftal breadth (from outer edge of beaded upper margins) 



Leiigtli of inteniasal suture 



Greiitest width of rostrum 



Length of tipper toothrow 



No. 125279. 



U.S.N.M., 

 type. 



32 



38.5 

 13.6 

 12.5 



7 



6.7 



External meaiturements {from ircU-made skin) . 



Measurement. 



Total length 



Tail vertebne 



Tail to end of hairs 



Hind foot 



Height of ear above crown 



No. 12.5279, 



U.S.N.M., 



type. 



315 



165 



167 



36 



15 



MUS KELLERI, new species. 

 DAVAO SOFT-HAIRED RAT. 



7y/^^.— Adult female (skin and skull). Cat. No. 125278, LLS.N.M. 

 Collected at Davao, southern Mindanao, Philippine Islands, July 20, 

 1904, by Edgar A. Mearns. (Original number, 5738.) 



(%aracters. — Apparent!}' a member of the rattas-ale.vand Hn us group, 

 but without spiny hairs in tlie pelage; whiskers extending be3^ond the 

 tips of ears; caudal annuli 10 to the centimeter on middle of tail; tail 

 concolor, longer than head and body; ears large, scantil}' haired. 

 Maunme 4 pairs: 2 thoracic, 1 abdominal, and 1 inguinal. 



Cdor. — Similar to 2lus mindanensis (see page 442), but darker and 

 more reddish above. Upperparts mars brown, thickly mixed with 

 black; underparts yellowish white; nose sepia; forearm hair brown; 

 feet white with a band of hair brown above, narrow on the hind feet, 

 extending to the base of the toes; tail grayish brown. 



