( 299 ) 
ON SOME UPPEE BEAUFORT THERAPSIDA. 
By S. H. Haughton, B.A., D.Sc. 
(Published by permission, of the Hon. the Minister for Mines and 
Industries.) 
(With Plate XIII and two Text-figures.) 
Cynidiognathus longiceps, gen. et sp. nov. 
The specimen which forms the type of this new genus was collected on 
the farm Vaalbank, Albert District, at the foot of the northern slope of the 
Dreunberg during the course of the geological survey of the area carried out 
in 1921. It consists of an almost perfect skull with part of the lower jaw, 
and some fragmentary limb-bones, but the skull only will be described here. 
The principal measurements are as follows : — 
Premaxilla. — The two bones are separated by well-marked suture. 
Each bone carries 4 incisors, but at the alveolar edge the facial portion is 
fairly short. It extends backwards in its lower portion to form the lower 
border of the external nares, but does not meet the nasal behind the nostril. 
Above the nostril each premaxilla sends backwards a narrow tapering 
process to the level of the back of the outer nares, the two processes lying 
between the front parts of the nasals. 
The palatal portion of the premaxilla is partly seen, although the ventral 
surface has not been fully displayed. On the ventral surface, however, the 
Maximum length 
Dorsal length in mid-line 
375 mm. 
330 mm. 
240 mm. 
80 mm. 
51 mm. 
180 mm. 
50 mm. 
200 mm. 
95 mm. 
Maximum width . 
Width at canines 
Interorbital width 
Snout to front of orbit . 
Orbital diameter . 
Snout to back of pterygoid flange 
Maximum height 
