126 



Field Columbian Museum — Zoology, Vol. i. 



INCHES- 



Total length 8.20 



Length of parietal from lam])doidal suture to junction with the 



frontals 1.80 



Length of interparietals 95. 



Fronto-parietal suture to posterior end of nasals 2. 



Length of nasals 2.45. 



Anterior rim of orbit to tip of premaxilla 4. 



Width of skull at anterior edge of orbits 2.55 



Length of premaxillas 2.65 



Extent of upper premolars 80 



" " " molars 1.35 



" " lower premolars 65 



" " " molars 1 .45 



Anterior edge of orbit to alveolus of second molar So 



Circumference of horns at base 5.25 



Length along curve, posteriorly 10.45 



The skull of this species is similar to that of Waller's gazelle^ 

 Lithocranius walleri, but the occipital region is much less 

 prolonged according to its comparative length, and is altogether 

 of a more delicate shape. 



Lithocranius vi^alleri (Brooke). 



Lithocranius walleri. Waller's gazelle. Native name Gerenuk^ 

 a. $ ad. Laferug. 

 /-•. $ ad. Mandera. 

 c-d. $ ad. South of Toyo Plain. 

 e.-f. $ juv. South of Toyo Plain. 

 g. 9 ad. South of Toyo Plain. 

 h.-i. 9 juv. South of Toyo Plain. 

 J.-k. $ ad. Marodijeh. 

 /. 9 ad. Marodijeh. 

 !it.-o. $ ad. Hullieh. 

 /.-/-. 9 ad. Hullieh. 

 s. $ ad. Bodeleh. 

 t. 9 juv. Haud. 

 u. $ ad. Hersi Barri, Ogaden. 

 V. 9 ad. Dagahbur, Ogaden. 

 This is the most frequently seen of all the antelopes inhabiting^ 

 Somnli-land, save perhaps the various species of Dik-Dik. It is 

 also the most peculiar in appearance, the exceedingly long neck, 

 large eyes, lengthened muzzle and general shape of the face, 

 being very like a giraffe. It is not a graceful animal in its' 

 movements, but walks along in a slouching sort of way, and 



