704 



depth and extent of the muscular fossae of the lower jaw, reaches its maximum in this skull. 

 The triangular occipital region is remarkable for the depth and boldness of the sculpturing of 

 its outer surface. The conjoined paroccipitals and mastoids form a broad and thick capsular 

 support for the back part of the acoustic bullse. The pterygoid processes are imperforate. 

 A well-marked groove extends on each side of the bony palate from the posterior to the an- 

 terior palatine foramina. The premaxillaries are comparatively short, and one half of the 

 lateral border of the nasals directly articulates with the maxillaries. The antorbital foramina 

 are large. 



Hunterian. 



4479. The skull of a male Lion (Felis Leo). 



In this are repeated all the characters of the species, sex and age shown in the preceding 

 specimen : on the upper canines may be noticed two longitudinal grooves on both the outer 

 and inner surfaces near the apex, and a single longitudinal groove on the outer side of the 

 lower canines. 



Hunterian. 



4480. The skull of a male Lion (Felis Leo), with the dental system complete. 



The molars of the upper jaw are p 2, p 3, p 4, and m 1 : those of the lower jaw are p 3, 

 p 4, and m 1 : p 4 is the carnassial tooth above : it has a long tubercle on the inner and fore 

 part of the blade, and this consists of three points ; the lower carnassial is m 1, and consists 

 of a bifid blade without accessory tubercles. 



Purchased. 



4481. The skull of an old Lioness (Felis Leo}. 



It repeats the specific character of the nasal processes of the maxillaries and the other cha- 

 racters of the skull of the Lion, but on a smaller scale. 



Hunterian. 



4482. The skull of a Lioness (Felis Leo}. 



The lower jaw is fractured. The calvarium has been removed to show the thin but com- 

 pact walls of the cranial cavity, the continuation of the bony tentorium upon the overarching 

 sides of the Gasserian fossa, the well-defined pituitary and chiasmal fossae, the deep rhinen- 

 cephalic chamber, and its relations to the overarching olfactory cavity and frontal sinuses. 



Hunterian. 



4483. The cranium, vertically and longitudinally bisected, of a Lioness (Felis Leo}. 



The bony tentorium extends above the petrosal to the ridge overhanging the Gasserian 

 fossa : the petrosal is short, its apex is neither notched nor perforated : the cerebellar pit is 

 very shallow. The sella turcica is deep, and well defined by both the anterior and posterior 

 clinoids.- The rhinencephalic fossa is relatively larger than in most Carnivora, and is defined 

 by a well-marked angle of the inner table of the skull from the prosencephalic compartment : 



