A COLLECTION OF MAMMALS FROM SIAM. 3 



taken in association. 



To tlie present example Auderson'b description of a female 

 leoninus ( = andamanevsis), seems best to appl)- ; and with it also agrees 

 a female \\liich I have recfiitly recorded from the extreme South-east 

 of Siam. 



It is with some hesitation that 1 have placed these two Siamese 

 specimens under andamanensis, and have done so only because descrip- 

 tions of that animal, rather than of any other, seem best to a])ply to 

 them. The question can onl}- be settled by comparing them with other 

 authentic specimens and as our knowledge of the monkeys of this 

 group is still very indefinite and incomplete it may be some time 

 before that can be done. ]fc mny well be that tiie Siam-Cambodia 

 region possesses a race cf pig-tailed mac;uiue still to be recognised : 

 for the type locality ot andamanensis is Arakan or Pegu — a considerable 

 distance awa\'. 



Macaca adusta, ' Miller, founded on specimens from South 

 Tenasserini, must not be overlooked when dealing with Siamese short- 

 tailed i[aca(jues, but no description of the female is given. It is 

 reported however that the upper parts are without annulations ( Elliot, 

 Keview of the Primates, 11(1913), p. 207), but in the Pak Jong 

 animal these are very marked. 



The latter is mummy-brown annulated with buffy on crown, 

 lumbar region, rump and forearms; and is suffused with ochraceous on 

 nape, shoulders, upper arms and. to a less degree, on the sides ; the 

 rump is darkest but not appi-oaching black anywhere. The legs are 

 pale mummy-brown, unannulated ; and the hairs round the ears, on 

 sides of neck, lower surface of body and inner sides of limbs, which 

 are all an indefinable pale bufty drab, are also unsjjeckied. The face 

 indistinctly grizzled dull whitish-buff and brown, has ear-tufts and 

 cheeks tinged with ochraceous ; the lower lip and feet are mummy- 

 brown and the tail is black above and like the buttocks below. There 

 are a few stiff black hairs below the front edge of tlie sharjjly defined 

 crown. 



Native collector's external measurements 2 ; — total length, 019; 



1. Proc. U. S. Nat. Mus., xxix, p. bi>9, pis xiii — xvii ( lOOfi ). 



-'. Tiie exteriuil mpasin-enieiits were tnkeii from tli<> auiuials wiiilc in 

 tlie flesli bv a tniiiiod native cnllectoi- and tlinuijli iIhto is liiilc rcnsoii to d.piilit 

 tlicir ((inei'tiu'ss they must iRTessarily be iKiciitcd willi setiie re.HTVe. 



VOL. II, JL'NK I'.'li;. 



