NEW CARNIVOROUS TIIERAPSIDS. 



169 



The length of the canine is probably about 7 - 5 mm., and the 

 height 13 mm. There is only a very short diastema of 1 mm. 

 between c and m 1 . The five molars measure 14 mm. 



Text-figure 5. 



Cerdognathus greyi. 



Inner view of left mandible as preserved. Slightly reduced. 

 B.M. R.2892. 



The specimen is probably a Gorgonopsian, but differs from all 

 known forms in having the first molar close to the canine and in 

 the relatively shallow symphysis. 



The specimen is registered No. R. 2892. 



Scymnosaurus watsoni, sp. n. (Text-fig. 6.) 



This new species is founded on a large skull discovered by 

 Mr. T. Bain on the farm Uitkyk, in the Gouph. 



Mr. D. M. S. Watson has recently published a restoration of 

 the palate (P. Z. S. 1914, p. 1035), and has doubtfully referred 

 the specimen to Lycosuchus vanderrieti. The skull has been 

 con siderably further developed by the British Museum prepare tor 

 Mr. Hall, and it becomes quite manifest that it cannot belong to 

 the genus Lycosuchus. Unfortunately the front part of the 

 snout is missing, so that nothing is known of the incisors, but a 

 large part of each canine is preserved and sufficient of the molars 

 to indicate their number. Except for the missing premaxillary 

 region, the skull shows all the main points of structure. 



The principal characteristics of the skull are the great size of 

 the temporal fossa?, the narrowness of the snout, and the presence 

 of a narrow high parietal crest. 



The following are the chief measurements : — 



Greatest length of the skull (probably) 290 mm. 



Greatest width 208 



Front of temporal fossa to back of squamosal 128 



Interorbital width 50 



Back of canine to back of m z (probably) 32 



Length occupied by the three molars 22 



There are three small molars which have their crowns much 

 flattened, and are probably serrated both in front and behind — 



