160 Annals of the South African Museum. 



called Chelyrhynchus lacliry mails, gen. et sp. nov., characterised by the 

 following main features : 



Skull almost as broad as long. Snout rather short. Orbits large. 

 Intertemporal width greater than interorbital width. 



No preparietal, lachrymal extending from orbit to nares, completely 

 separating nasal from maxilla. Septomaxilla within nostril, articu- 

 lating with lachrymal. Condyle small, and not tripartite. Palate short 

 and broad. 



Type. Skull. (S.A. Mus. Cat. No. 3334.) 



Locality. Commonage, Graaff Iteinet, C.P. 



Horizon. Lower Beaufort Beds. (Endotldodon zone.) 



GENUS DIICTODON, Br. 

 1913. Broom. Bull. Amer. Mus. Nat. Hist., xxxii, p. 453. 



Differs from Dicynodon in that the pineal foramen is entirely 

 surrounded by the large preparietal. 



DIICTODON GALEOPS, Br. 



1913. Broom. Loc. cit. fig. 15. 



1915. Broom. Bull. Amer. Mus. Nat. Hist,, xxv, 2, p. 145 ; fig. 33. 



Founded on a small skull. Orbits large, beak and nostril like those 

 of Dicynodon ictidops. No septomaxilla on face. Tusk very slender, 

 directed mainly downwards. Prefrontal small. Preparietal large, 

 with broad anterior third and narrower posterior two-thirds. Pineal 

 foramen small. Postf rental absent. 



Type in American Museum of Natural History. 



Locality. Slachter's Nek, C.P. 



Horizon. Lower Beaufort Beds. (Probably top of Endothiodon 

 zone.) 



GENUS EOCYCLOPS, Broom. 



EOCYCLOPS LONGUS, Broom. 

 1913. Broom. Bull. Amer. Mus. Nat. Hist., xxxii, p. 441 ; figs. 1, 2. 



Broom described in 1913 a skull from the Nieuweveld which he 

 called Eocyclops lone/us, and which he said was closely allied with the 

 type of Owen's form Oudenodon IIHHJHH*. Both agree in the structure 



