148 
An old male is 26 inches in height at the withers, and the skull-measure- 
ments of the type are:—Basal length 6°75 inches, greatest breadth 3°35, 
muzzle to orbit 4. 
These differences seem to be quite constant, so far as we have materials 
for comparison, and we therefore think that as the Algerian form has had a 
name given to it, it may be provisionally retained as a subspecies, at least 
until these characters are shown to be variable. The accompanying figure, 
for the use of which we are indebted to the kindness of the Zoological Society, 
gives a side view of the skull and horns of the Algerian form. 
Fig. 68. 
Skull of Gazella leptoceros loderi, 3. 
(P.Z.8. 1894, p. 471.) 
Our representations of this Gazelle (Plate LXIII.) have been prepared by 
Mr. Smit—that of the male (front figure) from a mounted specimen in the 
