338 Mr, 11. I. Pocock on the 



and retaining the white spot, rounrl ocular pupils and paws 

 approximately as in Felis, but with the iuner lobe of the 

 sheath of the third digit of the fore foot much larger. 



The skull differs from that of Felis in several points: — 

 The submalar portion of the maxilla is much lower, the 

 anterior end of the malar bone is greatly expanded and 

 deflexed above the preorbital foramen, and the posterior half 

 of the zygomatic arch is deeper as compared with the anterior 

 portion ; the postorbital process of the frontal rises farther 

 forwards on the frontal bone ; the nasal branch of the pre- 

 maxilla is thinner, and the nasals themselves have no foiward 

 projection at the tip ; the outer chamber and partition of 

 the bulla are smaller, the posterior end of the partition being 

 low and not confluent with the stylomastoid ridge, and, 

 although the mesopterygoid fossa is broad in front and 

 parallel-sided, the external ])terygoid crest forms a longish 

 ridge rising far in front of the root of the hamular, and the 

 suborbital edge of the palate is less deeply notched. 



In the characters supplied by the bulla, the lowness of the 

 maxilla below the malar, the anterior expansion of the 

 malar, the persistence of a well-developed first upper pre- 

 molar, as well as in other characters of minor importance, 

 the skull differs from that of Lynx. 



Genus Prionailurus, Severtz. 



Prio7iaih<n(s, Severtzow, 1858, p. 387 ; type pa?doc/irous, Gray { = he7i- 

 galensis, Kerr). 



Distr. Ceylon and India eastward to Borneo and the 

 Philippines and northwards into China and Amurland. 



Small cats with the structure of the rhinarium and feet 

 unrecorded, but differing from Felis in having rounded 

 white-spotted ears. 



The skull recalls that of Felis at first sight, but differs 

 therefrom in the sum of a number of characters. It is 

 narrower as compared with its length and is less dome- 

 shaped in profile view, the face being less steeply sloped 

 from the interorbital region. The frontal postorbital pro- 

 cesses are narrower, especially when seen from behind. The 

 nasals are depressed, not everted apically, and the ascending 

 or nasal branch of the premaxilla is more evenly attenuated. 

 The inferior edge of the orbit is less salient, and the posterior 

 half of the zygoma is less arcuate in profile view. The 

 mesopterygoid fossa is narrower, especially anteriorly, with 

 its front border more rounded, and the external pterygoid 



