KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 48. N:0 5, 129 
| } 
South of Guaso Nyiri 
} 3" ad. : 9 ad. 
mm. mm. 
Ne oo Ae 0 le ok ce ee ae ere 547 | 547 
CRT CLUE IOUE Cietinae seiel wy «(wae leis. eciey ie) loys hy tae ow lene 578 580 
Greatest breadth of aku of se Bach She ol we be td. ainhtes tnt te 210 217 
» » a ee See ee ee ee ee ua 102 / lll 
RIMMER IRGOCOROIAL REGU oo ex) 5 Sis) <b 6 5c 8 8 te hee ke eine 143 132 
Greatest length of nasals. ... . . area. Sth SENIG GS aESth Kletare) S 291 293 
> presaen ‘or masala pening: (see he She pd eel ee Pe Ot 127 122 
Breadth of nasals at anterior end of naso-premaxillary suture. -... . 57 48 
Distance from orbit to tip of premaxillary ..........+.-+.44.. 365 366 
en OuM ROO Der GIT BORIS ie le se ess eek ate ee ie 186 183 
Greatest breadth of premaxillaries in front .............4.. 71 67 
engun of palate’ meaially 2 2S ee SS elo whee 282 271 
The canines are strongly developed in the stallions, in the mare they are small 
but present as well in the upper as in the lower jaw. A small p' is present on the 
left side of the upper jaw of the old mare, and in a young stallion in which the 
last molar has not yet cut the gum the p’ is present on both sides. It appears thus 
probable that these teeth are normally developed in all specimens but being function- 
less soon fall out. 
A young stallion from Njoro with a condyloincisive length of 585 mm. has a 
skull which is even larger than that measured above, although this was a very fine 
middle-aged specimen, among the largest in the herd, and considerably bigger than 
an old stallion shot at the same time. In this young stallion from Njoro the per- 
manent dentition is not yet fully developed. The condition of the dentition is as 
follows. 
Upper jaw: i’ in use and worn. 
i? just cutting the gum. 
di*® in use. 
c in a level with the jaw bone. 
p’, p*, p® in use. 
p* not yet fully in a level with the other teeth. 
m', m® in use. 
m’ just appearing. 
Lower jaw: i, in use and worn 
iy just visible on the left side, on the right di, still in use. 
di, in use. 
ec the upper edge not yet at the upper surface of the jaw bone. 
Ps, Ps in use. 
dp, in use. 
M,, Ms, in use. 
m, just appearing. 
K. Sv. Vet. Akad. Handl. Band 48. N:o 5. 17 
