Mr. O. Thomas on a neio Sciuropterus. 31 



is quite irregular. Posterior fringe to hind limbs like back, 

 or rather tending towards an orange tone. Upper surface of 

 hands and feet uniform black ; under surface of heel and 

 fringe of hind feet brownish black. Tail long, thickly 

 clothed, indistinctly distichous ; its proximal hairs yellowish 

 or whitish, broadly tipped with brown, its terminal ones 

 wholly dark brown. 



Skull decidedly larger than that of S. alboniger^ but very 

 similar in its proportions, in the relative length of the muzzle, 

 and in the size and direction of tlie postorbital processes. 

 Interparietal unusually produced antero-posteriorly, its length 

 nearly equalling its breadth. Mastoid portion of bulla 

 swollen posteriorly above and behind the meatus. Teeth 

 large and heavy, their crests well developed and the valleys 

 between them deep ; p_* elongate, its longitudinal diameter 

 slightly exceeding that of ^il; surface of teeth with minute 

 crenulations ; ^— with a minute extra ridge running longi- 

 tudinally across the inner end of the main transverse ridge. 



Dimensions of the type (an adult female in skin) : — 



Head and body (c.) 330 millim. ; tail 250 ; hind foot 

 (damped) 50; ear from notch (dried and shrunk) 26. 



Skull*: upper length (c.) 51*5; zygomatic breadth '62-0) 

 nasals, length 15*1, greatest breadth 8*6 ; interorbital breadth 

 (ignoring supraorbital notches) 12*3, intertemporal breadth 

 12"2 ; palate, length 28 ; diastema 10*6 ; length of upper 

 cheek-teeth, from front of Pii to back of ?^, 11-4; length of 

 £_? alone 3-0. 



Hah. Puerta Princesa, Palawan. Coll. A. Everett. 



Besides the type (B.M. 79. 5. 3. 2) there are two other 

 skins and a skeleton of this species in the Museum collection ; 

 all were obtained by Mr. Everett between Nov. 1877 and 

 Jan. 1878. One of the other skins is mottled all over with 

 white and is evidently a partial albino. 



The only species with which S. nigripes could be con- 

 founded is 8. alboniger, Hodgs., a native of Nepal, Sikim, 

 N. Burma, &c., and from this it is readily distinguished by its 

 decidedly greater size, its black lips, black hands and feet 

 (in S. alhoniger the hands are grey and the feet brown), its 

 paler and less thickly haired parachute, and its larger and 

 heavier teeth. 



* The foUo-w-ing additional measurements are taken on the more 

 perfect skull belonging to the skeleton : — Basal length 4o-8 ; tip to tip of 

 postorbital processes 23-5 ; horizontal antero-posterior diameter of 

 bulla 10-4. 



