46 Dr. J. KE. Gray on the Species of Hyrax. 
purchased at a sale with Capra nubiana, which appears to be- 
long to this species; it has the same long hair ad. fur, show- 
ing no sign of the punctulation characteristic of the African 
species with a yellow dorsal spot. | 
Mr. Tristram gives a good account of the habits and manners 
of this animal in his interesting ‘ Natural History of the Bible,’ 
published by the Christian Knowledge Society. 
2. EUHYRAX. 
Skull with a distinct narrow sagittal crest the whole length 
of the crown when adult; occipital not dilated above; nose 
elongate, produced. Diastema elongate, longer than the length 
of the outer sides of the first three premolars; grinders in a 
nearly straight series; molars square, larger than the com- 
pressed premolars. Orbit incomplete behind. 
The skull is very similar to that of Hyrax syriacus?, H. 
Brucet, H. Burtonii, and H. capensis in general form; but 
the space between the upper cutting-teeth and the first pre-. 
molar is nearly twice as long as in those species. In the: 
H. Brucet it is as long as the length of the outer sides of 
the first three premolars and the half of the fourth one; in 
H. capensis it is only as long as the outer sides of the first two: 
premolars and one-third of the third one. ‘The grinders are 
large, the first upper one being compressed as in AZ. capensis ; 
but they are all smaller, compared with the size of the skull, 
and are placed in a straighter line, than they are in the 
other skulls of the species named, and the inner sides of them 
are more nearly parallel, so that the palate is scarcely wider 
in the middle of the series of grinders than it is at the front 
and hinder ends of them. Lower jaw dilated behind. The 
bladebone elongate trigonal like that of Hyraz. 
I may observe that Mr. Gerrard, in his ‘ Catalogue of 
Bones of Mammalia in the British Museum,’ has pointed out 
that there is a distinction in the skeleton between this species 
and H. capensis. He states that the specimen 724a, in his 
Catalogue, “has twenty-two pairs of ribs, the first of which 
are articulated to the last cervical vertebra, and five sternal 
bones,” the HZ. capensis, 724 6, in the same collection having 
only twenty-one pairs of ribs and seven sternal bones. (See 
Cat. Bones, p. 283.) 
It is well worthy of observation that all these osteological 
characters exist in two species scarcely to be distinguished by 
their skins. The skull of Huhyrax abyssinicus is imterme- 
diate between Hyrax and Dendrohyrax, but more allied to 
Hyrax. | 
