Flijiiig- Squirrel from liurneo. 215 



vivid colour as l\inun's(<j moJanotis*, but smallfr, and 

 {lifl'i'iiii^ iVoin it in dt tails of coloration and in its cranial and 

 dental characters. 



1 would propose to name it 



Petaurinta Thomasi\ sp. n. 



Size rather smaller than in /*. virhtnofis. Colour nearly of 

 tlie vivid rutbus charactrristic of that animal, but rather 

 deeper and richer. This rich colour in P. Tliomasi is abso- 

 lutely uniform over the whole animal, the face, ears, fi-et, and 

 tail-tiji, all more or lc:=s black in P. mt^lanotis^ bcin;j; here also 

 rufuus. Under surtace paler, the midillc line of the belly and 

 the parachute rather darker than the flanks. Fur of back 

 softer and more woolly than in P. nitida, paler basally than 

 terminally, not black-tipped. Ears comparatively very small, 

 not tutted, thinly clothed with pale rufous hairs. Posterior 

 lialf of sole hairy; sole-pads narrower and more sliar[)ly 

 dctined than in the larger species. 



Skull, as compared with that of P. mchmntis^ much smaller, 

 with the zygomata more evenly and widely expanded ante- 

 riorly. Kasals more uniform in breadth, the posterior more 

 than half the anterior bieadth; behind, they reach beyond 

 the premaxillary processes. Interorbital region narrow, flat, 

 not concave as in P. melanotis. Bullae comparatively small. 

 1'eeth much smaller and lighter than in the larger species, 

 the breadth of /7.* only 3'37 millim. 



Dimensions of the type (an adult female, measured in 

 skin) : — 



Head and body 350 millim. ; tail 340 ; hin I foot (dry) 60; 

 ear (dry) (c.) 19. 



Skull: greatest length 61; basilar length 51; zygomatic 

 breadth 41; nasals lG"5xl0*5; interorbital breadth l'i-5 ; 

 tip to tip of postorbital processes 33; palate length 28*8 ; 

 diastema (to p.*) 13"7 ; length of upper molar series (ex- 

 cluding ;?.') 14-2. 



Uab. Silat River, about 70 miles south of Claudotown, 

 Eastern Sarawak. 



Trjpe. Female. B.M. no. 99. 12. 9. 32. Presented by 

 myself. Obtained by native collector in February 1897. 



As it is of the same general appearance and colour, I have 

 thought it better to compare this species with P. mehmotis in 

 the description ; but it is, I believe, more closely allied to 



• It remains to be proved whether P. meUinutis is or is not synony- 

 mous with the Jnvan P. nitida. For the moment I use the name 

 P. melnnotii iia representing the Uornean form of the f^ronp. 



