86 Transactions of the South African Philosophical Society. 



occipital condyle. The dentition of the upper jaw is five large 

 pointed incisors and a sixth small one, one large canine, and 

 apparently five small simple molars. 



The premaxillary is fairly well seen on both sides of the skull. It 

 is a moderately strong bone, and passes up between the nasal and 

 the maxillary. There is evidence of there having been a strong 

 internasal process. Posteriorly the bone is overlapped as in other 

 Therocephalians by the maxillary. 



The nostrils are oval openings, looking forwards, outwards, and 

 slightly upwards. Each is about 1J inch in length and about h inch 

 in depth. 



The nasal bones are, as in other Therocephalians, remarkable for 

 being broader in front than behind. They are not ancylosed as in 

 Lycosuchus. 



The maxillaries are well developed, but so far as displayed do not 

 present any features of special interest. 



The frontal region is very distinctly concave, both transversely 

 and antero-posteriorly. In the antero-posterior direction the con- 

 cavity, though not very deep, extends from the front of the frontal 

 bone to near the parietal foramen. 



The lachrymal, prefrontal, and postorbital bones are not sufficiently 

 well preserved to admit of description. 



The parietal region is about half the breadth of the frontal region. 

 The parietal foramen is large. 



The jugal appears to have been well developed. 



The squamosal bone is almost entirely absent, but it must have 

 been a larger bone than in Lycosuchus to accommodate the muscles 

 of the lower jaw. 



The occiput is very imperfect and not well displayed. The con- 

 dyle is large and single, and bears considerable resemblance to that 

 in Dicynodon. The upper part of the occiput (? supra-occipital) 

 slopes slightly forwards. 



The palate has only been slightly cleared of matrix, but it is 

 manifest that it agrees pretty closely with that in Scylacosaurus. 

 The pterygoids have large transverse processes which descend 

 almost to the lower margins of the mandibles. Immediately in 

 front of the line of the transverse processes there are situated a 

 number of small, round, pointed teeth. The pterygoids posteriorly 

 after lying side by side for a short distance pass outwards and 

 backwards to meet the quadrates. 



The dentition differs from that of any of the Therocephalians in 

 which the full dentition is known. There are on each side five 

 large pointed subequal incisors, each of which has a flattened and 



