136 Annals of the South African Museum. 



DlCYNODON I/0TKICEPS, Br. 



1912. Broom. Proc. Zool. Soc., p. 870 ; pi. xcii, figs. 14-16. 



Founded on an imperfect skull. Short beak ; broad concave frontal 

 region ; broad flattened intertemporal region, formed almost wholly by 

 the postorbitals. Interorbital width : intertemporal width : : 5:4. 

 Supranasal ridge ; small preparietal, lying entirely in front of the 

 pineal foramen (?). 



Type in the American Museum of Natural History. 



Locality. Kuil's Poort, Beaufort West, C.P. 



Horizon. Lower Beaufort Beds, 300 ft. above the level of Beaufort 

 West, 



DlCYNODON PABDICEPS, Owen. 



1876. Owen. Cat. Foss. Kept. S. Afr., p. 42 ; pis. xxxviii, xxxix. 



1889. Seeley. Phil. Trans., clxxx B, p. 244 ; fig. 2. 



1890. Lydekker. Cat. Foss. Kept. & Amphib., iv, p. 21. 



Founded on a nearly entire skull ; large, short, abruptly deflected 

 muzzle ; orbits triangular ; frontals wide ; parietal bar narrow ; 

 temporal fossa moderately wide ; preparietal apparently fairly small. 



Type in British Museum. 



Locality. Fort Beaufort, C.P. 



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



DlCYNODON PSITTACOPS, Br. 



1912. Broom. Proc. Zool. Soc., p. 869 ; pi. xcii, fig. 17. 



1915. Broom. Bull. Amer. Mus. Nat. Hist., xxv, 2, p. 139, fig. 28. 



The type skull has the following characters : " Nostrils look almost 

 directly upwards. Upper part of nasals thickened, and prefrontal 

 region of orbital margin also elevated. Frontal region broad and flat. 

 Parietal foramen situated in an elevated preparietal. Postorbitals 

 appi'oach each other behind the foramen and nearly touch, forming a 

 parietal ridge. The tusk is small and directed forwards and down- 

 wards." 



A specimen from Beaufort West (Endothiodon zone) in the South 

 African Museum (Cat. No. 2660) almost undoubtedly belongs to this 

 species. It consists of a skull and lower jaw in a hard nodule. The 

 top of the skull has been cleared. The interorbital width is slightly 

 greater than the intertemporal. The postorbitals almost meet at 

 the back of the parietal bar. The pineal foramen is 10 mm. behind 



