670 ME. R. BROOM ON ANOMODONT REPTILES 



The snout is very short, but the structure cannot be made out 

 owing to crushing. 



The oi^bits are small. 



The frontal region is rela-tively narrow, and the temporal 

 region in front nearly twice as wide. Owing to a finely crackled 

 condition of the bones, sutures are very difiicult to make out, but 

 the limits of the preparietal can be clearly seen. The pineal 

 foramen is small and situated well back. The general shape of 

 the skull will be best indicated by the drawing given. 



There is evidence of at least one small unserrated molar. 



The following are the principal measurements of the skull : — 



Greatest length about 38 mm. 



Greatest breadth 35 ,, 



Interorbital width 8*5 , , 



Intertemporal width 22'5 ,, 



Emyduranus platyops, gen. et sp. n. (Text-fig. 44.) 



The new genus and species is founded on a small skull dis- 

 covered by me. near Biesjespoort, and is one of the most interesting 

 Anomodonts known. The specimen was found in the deposit 

 which has yielded the very numerous skulls of Dicynodon sollasi, 

 and before being developed it was looked upon as another of the 

 many duplicates. This was unfortunate, for a beautiful shoulder- 

 girdle lying against the skull was developed out and a portion of 

 the skull sacrificed before it was noticed that the skull is really a 

 very remarkable new type. "We have still preserved the greater 

 part of the skull, minus the arches, but with the contact between 

 the occiput and the parietal i-egion lost. 



The skull is that of a small Anomodont with a broad, flat head 

 and a wide palate which has on each side three or four teeth. 



The premaxilla is broad and shallow. As in typical Anomo- 

 donts, it forms the greater part of the bony palate. There is a 

 well-marked median ridge. Its relation to the palatines and 

 maxillae will be best understood by the figure. 



The maxilla is well developed, but is remarkable from the fact 

 that there is very little of a caniniform process. Some distance 

 inside of the alveolar margin are three or four teeth in a row. 

 On the right side the matrix has been left su]3porting the crowns. 

 The first is a small sharp-pointed unserrated tooth ; the second a 

 much broader flattened tooth, also without serrations ; the thii'd 

 probably similar to the second ; and the fourth a smaller tooth 

 imperfectly preserved. On the left side the matrix, and with it 

 much of the teeth, has been removed. The first tooth is seen 

 to have its root near the suture between the j)remaxilla and 

 maxilla, and though it doubtless is fixed in the maxilla, it passes 

 through the premaxilla. The others are in the posterior part 

 of the maxilla. 



The palatine is well developed and has an unusually large 



