38 Annals of the South African Museum, 



The suture between the maxillaries and the premaxillary is inde- 

 terminable. The maxillae are fairly large bones, forming most of 

 the snout behind the nostrils, which are roughly circular and about 

 24 mm. in diameter. Posteriorly the maxillae have suborbital 

 portions which articulate with the jugal and meet the anterior 

 process of the squamosal. The caniniform processes are found just 

 behind the plane of the back of the nostrils, and the tusks, which are 

 incomplete, curve downwards, forwards, and very slightly inwards 

 the general direction, however, being slightly more forwards than in 

 D. teoniceps. 



The nasals form the border of the upper posterior quadrant of the 

 nostrils, and, passing backwards, are apparently separated from one 

 another, save near the frontals, by the internasal process of the 

 premaxilla. 



The sep torn axillary cannot be discerned. 



The lachrymal forms a portion of the face about 35 mm. long and 

 12 mm. broad, and near its lower end forms a small boss on the 

 border of the orbit. Anteriorly, the lachrymal advances almost to 

 the nostril. 



The prefrontal is larger than the lachrymal and forms a prominent 

 supraorbital boss, which is the anterior part of the supraorbital ridge. 

 The frontal forms about 25 mm. of the upper border of the orbit, 

 and apparently passes backward in a slender prolongation to behind 

 the plane of the pineal foramen. The postfrontals are not well- 

 defined, but they appear to be fairly large bones. 



The postorbital forms almost the whole of the outer part of the 

 postorbital arch, besides extending over the length of the inner wall 

 of the upper margin of the temporal fossa. Nowhere, however, do 

 the pair of bones meet. 



The pineal foramen is fairly large, situated a short distance behind 

 the front of the temporal fossa, and is wholly enclosed by the pre- 

 parietal. Immediately behind the foramen is a small, elongate boss. 

 The preparietal is about 30 mm. long, and extends as much behind 

 as before the pineal foramen. 



The parietals extend forward to a point just anterior to the back 

 of the pineal foramen. The parietal region consists of a fairly deep 

 groove bounded by the outer margins of the parietals and the post- 

 orbitals. The total length of the parietal is 37 rum. 



The squamosal is a large bone, not wholly perfect, in which the 

 curve between the zygornatic and downward portions is more regular 

 and not so markedly angular as in many other species. The relations 

 of the squamosal with the occipitals is not displayed. Quite a large 



