PEOCAVIA EUFICEPS. 
327 
Another, but very young, animal from Sinai, with soft, fluffy hair, is coloured like 
the adult. 
[The three specimens collected by James Burton in Egypt, probably in the Eastern 
Desert, although the exact locality is not known, are still preserved in the British 
Museum. 
The above-given description of the type of P. rujiceps in the Berlin Museum might 
very well be applied to either of these faded specimens, which served Gray as types of 
P. burtoni. A specimen from Etbai, presented to the Museum by Capt. S. S. Flower, 
and another from Gebel Assab, 50 miles N.W. of Suakin, collected and presented by 
Mr. T. B. Hohler, of the British Embassy at Cairo, are in shorter coat and are darker 
and greyer in colour, and closely resemble the specimens figured; but in both these 
specimens the head is darker than the body and shows no light face-markings such as 
are represented in the Plate (Plate LVII.), which was drawn from animals living in 
the Zoological Gardens at Berlin. The exact locality from which these specimens 
were obtained is not known, but it was probably the neighbourhood of Kassala. 
The three skulls of Burton’s specimens are very unlike one another, and seem to 
prove the untrustworthiness of conclusions formed on comparisons of single specimens 
from different localities. Of two female skulls, one is long with the malars but little 
expanded, the other short with broad malars; the molar series seems to be the only 
point in which the two skulls agree. 
$. 120 a. $. 120 c. 
mm. mm. 
Greatest length. . 
„ breadth 
Upper molar series 
94 
86 
54 
53 
36-5 
36-7 
Two very young (not half-grown) specimens in the British Museum, collected by 
Mr. W. Jennings Bramly in the Shabluka Hills, 40 miles north of Omdurman, are 
very pale and grey in colouring, with distinctly brown, darker heads. These would 
seem to correspond with the typical P. rujiceps, Mr. Bramly says :—“ It is called 
* Kalidope ’ in the Sudan; the Arabs sometimes catch it and eat it when young; 
there are many colonies in the Shabluka Hills.” 
The two skulls from Wadi Ergayn, Sinai, collected by Dr. W. E. Hume and 
Mr. H. G. Skill, and forwarded by Mr. H. S. L. Beadnell, are of rather younger 
animals than those collected by Burton, so it is difficult to make a comparison j but in 
one, in which all the teeth are up, the measurement of the row of seven is practically 
the same. These two Sinai skulls agree in having shorter incisive foramina, with the 
premaxillse showing further back on the palate, otherwise there seem to be no tangible 
differences between them and Burton’s specimens. 
