MAMMALS COLLECTED IN SIAM. 395 
I have the skull and skin (without limbs or tail) of an im- 
mature female obtained by Messrs. Elwes and Yates in the Me 
Wang Forest about 100 miles west of Petchabun, which geogra- 
phically more nearly represents a topotype than anything else on 
record, It is slightly less bright than my specimens (thus seeming - 
ly approximating to grandicoriis, type locality Amherst) and has 
the tips of the ears broadly white externally, whereas the others 
have only the borders of the ears white. All three animals have 
the inside of the ears pure white. with no sign of a tawny patch at 
the lower edge. I propose to leave them under the specific name 
until better material representing cwrvostylis has been obtained. 
I was told by the Siames2 crew of my boat, who knew the 
district well, that the Koh Mesan “7 keng” is a much smaller 
animal than that of the mainland. 
Measurements of the Koh Lak! and Koh Megan? animals 
respectively :—head and body, 940,940; tail, 175, 170; hind foot, s. 
u., 285, 290; ear, 97, 98; height at shoulder, 575, 550. Skull: 
greatest length, 200,184; greatest breath, 90, 70; length of pedical 
from base on inner side 88 (116 to tip of horn in the latter). 
51. Tragulus kanchil affinis. 
Tragulus affinis, Gray, P. ZS, i861, p. 13 
Tragulus kanchil affinis, Kloss, P. Z. 8. 1916, p. 63; id. Journ, Nat. 
Hist. Soc. Siam, IT, p. 86 (1916), 
1 ¢ imm, 1 2 ad. Lat Bua Kao. 
Two very typical examples with faintly indicated nuchal 
stripes of the same colour as the crown. 
Measurements of the adult :—External dimensions taken in 
the flesh :—head and body, 450; tail 80, hindfoot, cu., 115; ear, 37. 
Skull :—greatest length, 95; condylo-basal length, 87; basal length, 
50; palatal length, 59; upper tooth row (alveoli), 32.5, crowns, 33; 
crowns of premolars only, 16; greatest length of nasals, 29; great- 
est breadth of combined nasals, 12.8; least interorbital breadth, 
26.6; zygomatic breadth, 42.5; external biorbital breadth, 45.6. 
1. Weight 60 Ibs. 
*. Horns not yet differentiated from the pedicels. 
VOL. HI, NO. 4, 1919. — 
