MR. R. BROOM ON ANOMODONT REPTILES 



The frontal region is broad and slightly convex, and tne 

 parietal region is in the same plane as the general frontal plane. 

 There are no supraorbital bosses as in T). oshorni, the whole 

 frontal surface being unusually smooth and slightly convex. 



The postorbitals are large and form a considerable part of the 

 upper cranial surface. Posteriorly they clasp the j^arietals, and 

 Avith them form the parietal crest. Curiously enough, each post- 

 orbital has had its posterior process broken off near the plane of 

 the pineal foramen, probably as the result of the bite of some 

 carnivorous enemy ; but thei-e is little doubt that they extended 

 backwards, though not so far as in typical Dicynodons, as the 

 grooves for their lodgement are preserved. Probabl}^,' however, 

 they did not quite extend to meet the squamosals. 



The preparietal is moderately large and wide, and forms the 

 margin of anterior third of the pineal foramen. 



The postfrontal, though fairly large, is almost entirely hidden 

 on the surfa^ce by the frontals and the postorbitals. 



I have much pleasure in naming the species after Mr. D. M. S. 

 Watson. 



The following are the principal measurements : — 



Interorbital width 58 mm. 



Intertemporal width 20 ,, 



DiCYNODON CURTITS, sp. n. (Text-fig. 33.) 



The type of this new species is a complete but distorted skull 

 found by me at Biesjespoort. The horizon is probably about 



Text-fiefure 33. 



Preparietal region of Dicynodon ciirUis Broom. Hat. size. 



100 feet above that in which the type of D. sollasi was obtained, 

 but it is quite possible that D. sollasi may have survived to be 

 contemporaneous with this other type. In any case, though this 

 type is similar in size to B. sollasi, it is very strikingly difierent 

 in nearly every detail. 



