MAMMALS COLLECTED IN SIAM. 387 
children sometimes keep them as pets in jars—they eat their way 
out of wooden cages, or even out of a kerosine oil tin if there is any 
rent init. The “tun” is an inhabitant of “Pa deng” or red 
jungle, ¢.e., dry jungle of a somewhat open nature such as bamboo 
country or very open glades with clumps of trees in districts which 
are not subject to inundation.” 
Measurements of Cannomys in millimetres. 
a i ER TE EME 8 A 
east | 
Number 2 | 2149 2150° | 2535 2534 2533 | 2467 
Sex and age as .. | Sad. Pad | ad, ad. ad. $ subad 
Head and body... WS 207 215 | — mt aoe == 
Pants a ays wa ae 64 | 59 | -- — | — 55* 
Hindfoot, s.u. ee Ac | aL 30 30.5* 20 26* 29* 
[an ois +s | 13 | 13 | — == 2 = 
Skull and teeth:— | | 
Greatest length .. Re 46.3 46.2 | 48 | — | 42.7 tas 
Condylo-basilar length .. 43.2 43 ce 38 — 
Palatilar length .. .. 26.8 26.4 27.1| 24] 293.7 22 
Buteinn | ae Oy A: tea OP are aT ae 15 4 
Upper molar series (alveoli) 10.7 10.4 10.8; 10.1 | 9.7 10 
» 9 97 (crowns) 9 9 10| 9.1 8.9 | 8.1 
Palatal breadth between ) | | | | 
Pte 31 2.9 31 2.3 | 2.3. 1.9 
anterior roots of 7.2) | | 
Nasals a¢ be -. (16.5 x 6.2 |16.1x6.3 | 17x6.5| — 15x 5.3 | 13.5x4.7 
Interorbital breadth aa 9.8 | 9.2 | ees 8.3 | 9.2 
Zygomatic breadth a 34 34 | 35.2| — o1e2'| 29.3 
Auditory breadth .. vs | 25 | 25.6 26.3} — 23.4 = 
Braincase breadth .. me | 19.8 19.4 20.9; — | 19 19 
Least breadth between ) | | | | 
Pera | 2 Lif i! = 1.3 2.8 
ridges on frontals ) | . | / 
{ i 
RE RS 
* from dried skin. 
VOL Ill, NO. 4, 1919. 
