146 Annals of the South African Museum. 



skull, and the long upward extension of the jugal behind the post- 

 orbital. 



Type in American Museum of Natural History. 



Locality. Grootvlei (part of Paardekraal ) , Beaufort West, C.P. 



Horizon. Lower Beaufort Beds. (Cistecephalus zone.) 



DlCYNODON LEONICEPS, Owen. 



1876. Owen. Cat. Foss. Eept. S. Afr.,p. 32 ; pis. xxiv-xxvi. 

 1890. Lydekker. Cat, Foss. Kept. & Amphib., iv, p. 19. 



Founded on an imperfect skull ; large, long, and narrow. Orbits 

 directed mainly laterally ; interorbital bar very wide, parietal bar long 

 and narrow, postorbitals almost above parietals ; temporal fossa long 

 and comparatively narrow ; skull high. 



A skull which I was permitted to examine through the kindness of 

 the Director of the Port Elizabeth Museum (No. 68, P.E. Mus.) 

 seems to be referable to this species. It lias the following approxi- 

 mate measurements : 



Greatest length . . . ." . . 300mm. 

 Length from snout to front of orbit . 60 ,, 



Interorbital width . , , 65 ,, 



Intertemporal width . . 33 ,, 



Width across nasal overhang 63 ,, 



Orbital diameter ... 60 ,, 



Basal length . . . 250 



Width between base of tusks . . 32 ,, 



The condition of the skull is such that sutures are difficult to deter- 

 mine. The bone is soft and is caked with a hard, crystalline matrix. 

 There appears to have been a large postfrontal ; but the preparietal, if 

 present, could have been but small. The pineal foramen is almost 

 covered by the postorbitals. The chief feature of the skull is its great 

 height, i. e. the length of the downward portion of the squamosal. 

 Type in the British Museum. 



Locality. " Gats River, Sueeuwberg, Graaff Reinet," C.P. 

 Horizon. Lower Beaufort Beds. (Cistecephalus zone (?).) 



DlCYNODON LEONTOPS, Br. 



1913. Broom. Bull. Anier. Mus. Nat. Hist., xxxii, p. 451 ; fig. 12. 

 1915. Broom. Bull. Amer. Mus. Nat. Hist,, xxv, 2, p. 132; fig. 19. 



Large. Comparable with D. leoniceps and D. pardiceps ; frontals 

 relatively narrower than in these types, passing back in almost parallel 



