42 Annals of the South African Museum. 



posterior limit cannot be seen. The septomaxillary is well displayed. 

 It lies along the floor of the nostril and ascends to form a small part 

 of the face. As pointed out by Broom, this is the bone which was 

 described by Owen as the palatine. 



The orbit is large and round, and looks outwards, upwards, and 

 slightly forwards. The supraorbital border overhangs it to a certain 

 extent, and behind, the postorbital arch is very strong. The limits 

 of the lachrymal and prefrontal are not well-defined, but both seem 

 to be present, and the lachrymal the larger of the two. The jugal, 

 which forms the lower border of the orbit, is a flat bone, relatively 

 small, which passes backwards to meet the squamosal. 



It is impossible to define the quadrato-jugal. 



The temporal fossa is small, and is directed outwards and back- 

 wards. Its anterior, and almost the whole of its superior, border 

 appear to be formed by the postorbital, while the squamosal bounds 

 the inferior and posterior sides. The squamosal is of the normal 

 Dinocephalian type, meeting the parietal, the quadrate, and the jugal 

 by means of three processes. 



The frontals and parietals are very much thickened, and the 

 whole of the top of the skull is very broad. Just behind the plane 

 of the back of the orbit the temporal region is slightly hollowed, with 

 a slightly raised boss in the centre of the hollow. This is probably 

 the pineal region ; but the pineal foramen is apparently almost, if 

 not entirely, covered with bone. 



The occiput is fairly flat and large and slopes backwards and 

 upwards. The condyle is rounded, 55 mm. wide, and on its upper 

 side has a deep groove for the medulla. This groove is about 25 mm. 

 broad and half as deep. In the middle line below the medullary 

 groove is a pit 25 mm. broad. There is a large exoccipital which 

 touches the squamosal and quadrate. The stapes is elongated 

 posteriorly in the direction of the quadrate. 



The structure of the palate is essentially that given by Broom 

 in describing the British Museum skull. There is no trace of a 

 transpalatine. 



In addition to those given above, the following are some of the 

 chief measurements : 



Distance from occipital condyle to front of snout 435 mm. 



Length of snout 220 ,, 



Distance from quadrate to front of snout 290 ,, 



Breadth of palate at posterior end of prevomers 280 ,, 



Length of prevomers 145 ,, 



