148 BINAR LONNBERG, MAMMALS COLLECTED BY THE SWEDISH ZOOLOGICAL EXPEDITION ETC. 
or that it prefers to use the right side of the head when butting, but in less degree 
than for instance G. c. tippelskirchi,! and G. c. cottoni.”. A skull of an old bull 
Giraffe from the Sotik, which I saw in Nairobi and which, I suppose, represented 
G. c. tippelskirchi, had the occipital exostoses and those above the orbit much bigger 
on the right than on the left side; the right main horn was thicker than the left; 
and the nasal exostoses were chiefly situated on the right side of the median line. 
These facts indicates that »right-headedness» is a common feature among Giraffes. 
The dimensions of the skull of G. c. reticulata are seen in the following table 
of measurements. If this skull is compared with a skull of G. c. tippelskirchi from 
Kilimanjaro it will be seen that the main pair of horns and the azygous frontal 
horn are much better developed in G. c. reticulata. 
| @. e. reticu- |G. c. tippels- 
lata o from, kircht from 
Guaso Nyiri | Kilimanjaro 
mm. mm. 
Condylobasal length ......... Pe TOA RBS, ORS PES SE 597 633 
Basal lengths. <0 © tent cate ert oie es er ee sia cae) te oes RG ae 570 607 
Graatest breadth 21 c5 SP SREB) ec iiwt 0 5 AE GO ona e Es Rion ties are | 267 307 
Distance from gnathion to anterior end of nasopremaxillary suture .. . 151 168 
» » » EQUOTDEG p<. bs 5 toukie, ve eens ble yos ts cake ie peas 379 397 
» » orbit to hind surface of occipital condyle .... . 503 os! 223 234 
» »  gnathion to anterior premolar... .. . eM Ceo. rf. 245 258 
Length of upper molar series. . -- - 2s + 2+ see 2 et ee we ew ws 149 153 
Breadth of skull across hind end of nasopremaxillary suture ..... - 88 98 
Height of skull at the same place . . . - - +e ee ee ee eee ee | 89 109 
Breadth across bases of main pair of horms. . ... +. +++: ms 227 212 
But on the other hand the nasal exostoses and the supraorbital bosses are much 
more strongly developed in G. c. tippelskirchi which results in giving it a greater 
breadth of the skull across the orbit. And the nasal portion of the skull is as well 
higher as broader than in reticutata as the measurements prove. 
The sperms of the Giraffe have been described for the first time from prepa- 
rates of this specimen of G. c. reticulata by G. Rerztus.° 
This Giraffe was infested by a great number of ticks around the anal opening 
and around the base of the scrotal sack where the skin is thin. They proved to 
belong to the species Hyalomma cegyptium (L.)* 
Conf. my above quoted paper on this subject. 
According to LYDEKKER. 
Gustar Rerzius: Biol. Untersuchungen N. F. Bd. XVI. Stockholm 1911. 
Conf. L. G. Neumann: Ark. f. Zoologi. Stockholm. Bd. 7 n:o 24. 
- © wo 
