306 EODENTIA. 



This appears to be both a house and tree rat, and it occurs in Burma as well as 

 in the Kakhyen hills, where I first met with it at Ponsee, 3,500 feet. 



* MUS EUBBICOSA, n. s. 



Snout moderately pointed and long ; ears small and somewhat pointed ; hind foot 

 long and narrow ; claws moderately long, compressed and sharply pointed. Upper 

 surface dark rusty-brown, darkest on the middle of the back and palest on the 

 muzzle, head and shoulder ; on the sides and lower part of shoulder the reddish- 

 brown tends to pass into greyish; feet greyish. The sides of the snout greyish; 

 all the under parts silvery-grey, tending to white, without any trace of rufous or 

 but with a very faint yellowish blush. The tail, dull brown, is somewhat shorter 

 than the body and head, and it is coarsely ringed, 2| rings to one-tenth of an inch, 

 the hair being short, sparse, and dark-brown. 



Adult S 

 Inches. 



Tip of muzzle to vent 5'70 



Vent to tip of tail S'lS 



Length of hind foot .............. 1'26 



Height of ear 0-60 



The skull is distinguished from that of the previous species by its elongated 

 nasals which are prolonged backwards on a Une behind the posterior border of the 

 supraorbital foramen, whUe in the skull of the former these bones are only a little 

 behind the anterior border of that foramen. It is also distinguished by the 

 marked concavity on the sides of the frontal contraction, which does not occur 

 in the former species, and its tympanies are notably smaller. The molar hues of 

 teeth in the two species are of the same length and their upper incisors about the 

 same breadth. 



The most marked characters by which it is separated from the foregoing species 

 are its sharper snout, smaller ears, and larger feet, and the much more rufous colour- 

 ing of the upper parts and the silvery- grey of the under surface. 



It is found in the villages of the Kakhyens at Ponsee, and ia the houses 

 of the Shan- Chinese at Hotha. 



* MuS YUNNANENSIS, n. S. 



Mu7;zle rather short and broad ; ear large and rounded, its height considerably 

 exceeding the distance between the inner canthvis and the front of the muzzle, 

 sparsely clad with short hairs. Peet well developed ; hind foot moderately long ; 

 pads prominent ; claws compressed, strong, curved, and sharp. Tail coarsely ringed, 

 three rings to one-tenth of an inch. Upper surface dark rich brown, with intermixed 

 pale bans with broad brown tips. The sides of the face, below the moustachial 

 area, chin, throat, and all the under parts yellowish washed with rufous. The ears 

 and tail dusky-brown ; feet pale yellowish, and more or less brownish above. The 



