to MR. C- eODEN KLOSS Ol^ 



0. Hylowys siamensis, sp. nov. 



Tijpe. Immature t'emale(3kin and skuD), Author's No. '2065/CBK. 



C'oilected at Hinlap, Eastern Siam, 900ft, on 7tli December 1915. 



Characters^. Differs from //. suilluK. Miiller and Schlegel, in 

 Iiaving i>aler, more buff3- colonration, and rather nari'ower nasals. 



Colour. Above a speckle oi black and buff slightly tinged 

 with ochraceous on the head and rump, the hairs with neutral grey 

 bases. Below silvery tinged with buff. Hind feet blackisli, partly 

 clad with t^liort bufl'y hairs- Tail bicolored and clothed with hairs 

 only visible through a lens. 



Skull and Teeth. The skull does not appear to differ from 

 skulls of Tl. siiilluf' from the ilalay Peninsula except in rather narrow- 

 er nasals. Several milk teeth are still present. 



Measurements. Native collector's external measurements : — ■ 

 bead and body, 112 (121) * ; tail 22 (15) ; hind foot, 21 (2-3). Skull :— 

 greatest length, 52 {'^2.) ; basal length, 28.2(27.6); palatal length, 

 17 (16); upper tooth row, 16.8 (16): p' — m* 8 (8) ; z^j'gouiatic 

 breadth, (16.9) ; length of mandible 2S (22.9). 



Sjreciinena examined. One, the type, 



Hemarks. I would not venture to separate tfie Siamese 

 animal on an immature individual were it not tlrit there are fortunate- 

 ly- available for comparison several immature specimens of the older 

 species from the Malay I'euinsula. Three of them are younger and one 

 (judged by the state of the dentition) is practically of the same age 

 as the present animal. They exactly agree in colour with adults from 

 the same region which, in turn, I am unable to distinguish from 

 topotj'pes from Sumatra ^ in all of these the upper surface is mingled 

 ferruginous and black, tl>e hairs having plumbeous black bases : the 

 underparts are darkish grey generally strongly suffused with bufi}-. 



It niav be fairly assumed from the above that the colour of 

 flilluiii'/s does not diff.^r with age and therefore the present specimen 

 may be taken as representative of the local animal. 



The type of H. pe<iHensif>. Blytli, from Shwegyin , Lower Burma, has 

 been available for examination. It is now (juite impossible to draw any 



* Moasiu'iMMi'iils ill i)iir<'ii(li('scs ilfose of itii inimiil ilic fi'iiiiilc of fl- ffiiillns 

 fioiH K.'dali P''i>U, Malay SuUes : V M.S. .Mas. No. !I6I/16 



JOl'KN. NAT. lUtST. SOC. SIAM, 



