994 THE WHITE EIVEE FAUNA. 



The profile is convex. The face is flat in front of the orbit, but is 

 strongly convex for the alveolus of the superior canine in front of the infra- 

 orbital foramen. The premaxillary border is moderately produced, and 

 the palate is generally flat. The anterior border of the posterior nares is 

 concave on each side of the median suture, which terminates at the apex of 

 a projecting angle. The sagittal crest is not much elevated anteriorly, but 

 rises steeply to the inion. The lateral occipital crests are prominent and 

 nearly parallel. The occiput is not narrowed, and it is divided by a keel 

 on the median line. There are no lateral keels or fossae. The suprameatal 

 crest is thin, and the postglenoid process is not much extended transversely. 

 The mandibular ramus is shallow, and of nearly equal depth below the 

 molar teeth. The inferior flare is quite prominent, and the alveolar margin 

 rises to the inferior canine. The symphysis is very deep, and the front of 

 the chin is strongly convex at its superior part, and less so below, having a 

 form quite different from that seen in the species of FelidcB already described, 

 where it is flat and transverse. The symphyseal suture is longer above 

 than below, and' the two parts are separated by a deep sinus without con- 

 tact, which almost reaches the external surface. The angle of the ramus is 

 not as much produced as in the species above described, and it is widened 

 horizontally inwards. The masseteric fossa is profound, and its inferior and 

 supero- anterior borders are prominent. There is a peculiar rough, flat 

 tuberosity on the inner side of the superior border of the ramus, opposite 

 the posterior part of the sectorial, which I do not find in the existing cats 

 nor in the species of Nimravus, and of which a trace is seen in the Dinictis 

 Cyclops. 



Sutures. — The frontomaxillary is almost vertical from the orbit, and turns 

 downwards to join the lateral nasal suture for a very short distance oilly. 

 It is there widely separated from the premaxillo-maxillary. The lachrymal 

 bone is pear-shaped, with the narrow end directed downwards and back- 

 wards, and joining the orbital plate of the palatine by a short suture. Its 

 bounding sutures are not dentate. The anterior part of the orbitosphenoid 

 is separated from the lachrymal by about the length of the inferior border 

 of the latter bone. The palatal plate of the palatine bone extends as far 

 forwards as the anterior border of the superior sectorials, and is broadly 



