EAST AFRICAN MAMMALS IN NATIONAL MUSEUM. Ms 
reddish. The skulls of the two forms, rendilis and swara, seem indis- 
tinguishable, and, as will be seen from the accompanying table of 
measurements of adult male specimens, the characters of the nasal 
bones, as used further to differentiate the two by Doctor Lénnberg, 
do not hold good in our series. The northern form seems to be 
restricted to the Northern Guaso Nyiro region, as head skins with 
full-length necks from Laikipia and Lake Hannington are clearly of 
the southern race. Lydekker ' lists specimens from Lake Elmenteita 
and Naivasha under rendilis, but these should doubtless be referred 
to suara. No specimens from the actual type locality of rendilis are 
in the collection. 
Measurements of skulls of adult male specimens of A2pyceros. 
Hy et eee | 
|Great-| Great- | Orbit 
5 : dylo- Great-| Inter- | est est | to tip |Upper Hi 
Form and locality. | No. basal est orbital [length |breadth of pre- tooth Condition of m3, 
length. length.|breadth.| of | of | max-| row. 
} /nasals.| nasals.| illa. 
ies. She? 3 Serta f (eth cees oe We 
| 
A.m.suara. | | 
G. E. A.: Serengeti | | / 
(elainsts tf 142 201012 | 262 274 Tit? BIS 160 77 | Moderately worn. 
B.E.A 
"PAVOUR: «0 <-<4<5 34699 275 287 75 97 | 32.8 168 76 Do. 
Kabalolot Hill..) 181893 263 | 275 77 o4 30.0 158 78 | Considerably worn. 
10S eee | 181920 263 273 78 85 / 33.2 | 160 80 Do. 
Southern Guaso | 
Nyiro......... 163198 | 259] 270 73} 96! ‘340| 158| 77 | Moderately worn. 
2 aes 163199 | 264 | 274 74 92| 30.8] 164 78| ‘Do. 
Tt eae 163200 | 266 74 75| 96| 32.3 | 163 77 | Considerably worn. 
a re 181858 | 262] 273 78| 86 31.5) 158; 79) Moderately worn. 
Ulukenia Hills..) 163207 | 256} 270 76/ 89! 35.1| 158| 79 | Considerably worn. 
Juja Farm...... 162000 | 272! 281 74 | 92; 29.2) 164 80 | Do. 
Dae Uee: 162001 257 264 73 | 86 28.8 152 80 | Moderately worn 
Naivasha....... 163205 261 273 73 | 91 29.6 | 163 77 Do. 
Lake Hanning- | 
GORE See sk a sise 163203 261 271 74 91 29.1 157 76 | Considerably worn. 
Leikipiass. ~~ 2. 163204 262 278 78 93 32.7 165 80 | Do. 
A. m. rendilis. | 
BoE. A.: | 
Lakiundu River| 182063 |.......]....... TO es oc ners 33-2 |------- 84 Moderately worn. 
Northern Guaso | | 
ving nee 2" 163201 271 284 | 79| = 95 SOG IGS 76, | Considerably worn. 
10 Ya ar 163202 268 280 80 | 7 34.0 | 163 74 Much worn. 
1 Cat. Ungulate Mamm. Brit. Mus., vol.3,p.11. 1914. 
