182 EINAR LÖNNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
The bulk of a Buffalo bull is quite amazing, and few animals give such an 
impression of powerful strength as he does. One is therefore quite astonished to 
see the comparative slenderness of its short leg-bones. 
In the following table of measurements a comparison can be made between 
the dimensions of the skulls of the bull and the cow from Guaso Nyiri as well as 
with the corresponding measurements of a skull of the true Buffelus caffer from 
»Caffraria. 
i ; 
North of Guaso Nyiri | »Caffraria» | 
(of 2 [og 
mm mm. mm 
ICondylöbasal length e ber see SS AES | 503 491 — 
Basal lenptbyan. ÅN => 5 su a de Ses RA AA 469 | 461 479 
Greatest breadth of skull across orbits . . « «.so-s ss + « | 242 | 222 269 
Least. interorbital Width «Gas el sa ss ESR 149 | 138 | 169 
Mastoidbreadth .. Sc =. SE EEE TNE 3, oh ER RR 
Distance from orbit tor tip, Of premaxillary le fake... | 246 272 273 
Length ofinasals . ess et En | 184 194 193 
Breadth: of'nasals . (7 a fe fe 6 fe de fe Kalles ses REN la 05 55 71 | 
Eengthiofiupper molan series4: sö. es SRS SST | 131 | 133 126 | 
| Greatest breadth across premaxillaries . . . .. . s . . « + | 116 | 100 114 | 
The latter is a little superior in most dimensions. The most striking feature 
in the skull of my Buffalo bull is the shortness of its preorbital region. This may, 
however, be an individual variation as the corresponding dimension of the cow is 
longer and almost equal to that of the South African. The length of the nasals 
stands in direct correspondence with the preorbital length generally in these specimens. 
Orycteropus afer subsp. 
(Conf. LYDEKKER: The Game Animals of Africa. London 1908, p. 466.) 
In the neighbourhood of Nairobi Orycteropus was not uncommon, and well 
known to the natives under the name »Manga». In consequence of its nocturnal 
habits and because it always spends the days in its deep burrows, it is never seen, 
and specimens can hardly ever be procured. I saw many times its scratchings and 
diggings which sometimes may be obnoxious. The termites often make their dwellings 
in the roads which are made of hard-packed red clay which appears firm as brick. 
But in spite of this hardness the Manga with its powerful claws is able to break 
up the road and make deep holes in the same to reach its favourite food, the white 
ants. One evening in Jan. 1911 I rode with Mr. HAMPSON along the road to his 
farm and found it without fault, but the following morning when we passed the 
same way the Manga had done lots of damage and broken up the road in several 
