On Two new Species of Slow-Loris. 627 



LXVI. — Two new Species of SIoic-Loris. 

 By Oldfield Thomas. 



(Puljlished by permission of the Trustees of the British Museum.) 



Nycticehus incanus, sp. n. 



A uniformly asliy-grey species. 



Size comj)avatively large, approacliing- that of N. henga- 

 lenst's and cinereus. General colour uniform grey (a little 

 darker than " pale ventral grey "), tlie body not contrasted 

 brown or rufous as compared with the head. It is true that 

 the head is lighter — whitish grey, — but it is not strongly 

 contrasted with the colour of the body. On the posterior 

 back and rump there is a little brownish, but scarcely affecting 

 the general colour. Sides and under surface uniformly grey. 

 Median rufous-brown line well-marked, commencing on the 

 occiput and running down to the rump. Face white. Eye- 

 rings brown. Ears i-eddish brown. Arms and legs grey 

 like body ; hands and feet dull white. 



Skull of the comparatively large size found in N. henga- 

 lensis and cinereus, but the zygomata not so widely spread. 

 Sagittal crests, in an old female, not meeting on the crown. 

 Postorbital bar broad. Teeth about as in cinereus, smaller 

 than in hengalensis. Four upper incisors. 



Dimensions of the type (measured on skin) : — 



Head and body 335 mm.; hind foot (wet) 70. 



Skull : greatest length 67 ; zygomatic breadth 43*5 ; 

 breadth of postorbital bar 4-7 ; breadth between coronal 

 ridges 5 ; mastoid breadth 37-7; palatal length 25-3 ; front 

 of canine to back of m^ 24. 



Hah. Lower Pegu. Type from Kyeikpadein. 



Type. Old female. 'B.M. no. 81. 12. 2. 1. Collected 

 27th August, 1879. Presented by E. W. Oates, Esq. One 

 specimen. 



This animal is probably most nearly allied to N. cinereus, 

 the Siamese Slow-Loris, but differs by the absence of the 

 brown coloration on the back and sides, the whole ain'mal 

 being a comparatively uniform grey, apart from the usual 

 dorsal stripe. 



Nycticehus ornatus, sp. n. 



A rather small species, with strongly contrasted head- 

 markings. 



