NEW SPECIES OF NEOTRAGUS. 



19 



1880.] 



Thirdly, the nasal bones, the shortness of which is characteristic 

 of the genus, are still shorter than in Neotragus saltiamis; and their 

 posterior margins form an almost straight transverse line, whilst in 

 Neotragus saltiamis they form an acute angle (see figs. 5 & 6, p. 20). 



Fig. 2. 



Skull of Keoiragita kirkii ; side view. 



Fig. 3. 



Fig. 4. 



Skull of Neotragus saltianus. 



Fourthly, the infero-posterior angle of the mandible (fig. 2) is 

 produced backwards, forming a projection beyond the hind margin 

 of the mandible ; whilst in Neotragus saltianus (fig. 3) the hind 

 margin is only slightly excised. It must be remarked, however, that 

 this peculiarity is much less developed iu the young female than in 

 the adult male. 



Fifthly, the hindmost molar of the lower jaw has a small third 

 lobe developed behind with a single enamel fold, as in the species 

 from Damara Land (see fig. 12, p. 22) ; this lobe is entirely absent 

 in N. saltianus (see fig. 11, p. 22). 



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