KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 57. N:0 2- 7 



Malaya. No specimens were obtained, and I ha ve nothing further to add about their 

 habits besides what I ha ve said about that species in my former paper on the Mani- 

 mals of Siarn (vide Arkiv för Zoologi, Band 8. No. 23. 1914 p. 3—4). 



Macaca andamanensis. Bartlett. 



Plate II. Fig. 3. 

 <$ Koon Tan, Northern Siarn Ve 1914. — Xose to vent = 530 mm.; ear = 40 mm. 



The specimen obtained, which was shot by one of my native collectors among 

 the mountains at Koon Tan, is not quite fullgrown, the last molars having not quite 

 broken through though they are clearly visible. The horse-shoe shaped crest, so con- 

 spicuous in this form is, however, very well marked indeed, though it is not black but 

 dark brown and clearly set off from the surrounding parts. 



The canines are fairly long and grooved anteriorly. Face and skin round the eyes 

 bluish white. Irides hght brown. 

 Skull measurements: 



Total length = 136,s; Basicranial length = 91,2; Condylobasal length = 101,o; 

 Occipitonasal length = 112,2; Zygomatic breadth = 86,o; Width of brain case = 66,o; 

 Least interorbital breadth = 7,o; Least postorbital breadth = 48,3; Length of palate 

 mesially = 58,5; Length of nasals mesially = 32,o; Front of canine to back of m 3 = 46,o; 

 Length of upper molar series = 38,o; Length of lower molar series = 41, i mm. 



Nycticebus coucang. Bodd. 



J 1 Pak Koh *% 1914. — Xose to vent = 343 mm. — $ Chieng Sen. — Nose to vent =315 mm. 



During my journey in Siarn I obtained two specimens of this species. One very 

 old male was brought to me by a native when I had my camp at Pak Koh in Northern 

 Siarn. It had been caught in the jungles at the neighbourhood. The specimen was very 

 savage and tried to bite fiercely when handled. — The other specimen, an adult 

 female, was presented to me by the district officer at Chieng Sen, the most northern 

 town in Siarn. That specimen was quite tame and I kept it as a pet for several months. 

 During the daytime it usually was sitting in a corner of its cage, with the head and 

 hands concealed between the thighs looking like a woolen ball. When disturbed in 

 some way it generally uttered a low croaking sound. At night-time, however, it was 

 more lively climbing about in the cage. I fed it on birds and bananas which it seemed 

 to like very much. When angry it uttered a loud hissing grunt. It was quite tame but 

 when handled it grasped with great tenacity to everything and was sometimes rather 

 difficult to get rid of. 



There seems to be a great difference as to size between the males and the females 

 and though both my specimens are fully adult (the teeth are quite worn) the size of the 

 male is considerably larger than that of the female, as seen by the skull measurements 

 given below. 



