MAMMALS COLLECTED IN SIAM. 349 
Measurements of Macaca irus atriceps. 
No. ri ..-| 2283 | 2284 | 2285 | 2282 | 2288 | 2286 | 2287 
LA 
Sex. wee rece Sad.| dad.| dad. } Qad. | Qad. | Qsub 
ad. 
Head and body, measured 
in flesh ...] 465] 425 
Tail ' | 550) 545) 540) 515] 475, 480) 475 
Hitid foot, su. ,, al 1944) 130 182) 199), bi 76.105, We 
Bar i tel aa 28 ae a aS ae 
Skull and teeth :— 
Greatest length ..{ 120} 117 |116-5/113.5] 106] 103] 99 
Basil length ih STP GL S Ba ead TT la Bee 
Palatal length ea ete el Pees 1, 8) 49.5) | ad 
Zygomatic breadth Fp Baea | ee T | eae = 69.51 68 
| { 
Upper tooth row excluding ) 
incisors . ...| 42 39.5 42! 40.24 36.1] 36.1] 35 
Upper molar series only. 4.31, 33.1 1532.01 34.3} 32.7 32! 30.6 31 
m2 — m? externally a 37.1) 36.2} 37.0] 35.7] —); 34.4| 33.8 
Lower tooth row excluding | | | | 
incisors... 46.5) 44.6) 48.4 44] 40.6 —: 39 
| 
q H 
Lower molav series only vs] 39.8| 38| 41.1 | 38 37| —1 34 
Length of mandible ...| 86.21 86] 88.2/ 85.3 
VOL. III, NO. 4, 1919. 
