240 



Prof. Owen on the Reptilian Fossils of South Africa. 



DESCRIPTION OF THE PLATES. 



Plate XXIX. 



Oblique view of the skull of the Dicynodon tigriceps, natural size. 

 (From Gonzia River, Kafraria.) 



Plate XXX. 



Side view of the same skull : half natural size. 

 (The fragment of Lower Jaw figured on this Plate is from Bovey's Farm.) 



Plate XXXI. 

 Back view of the same skull : half natural size. 



Plate XXXII. 

 Base view of the same skull : half natural size. 



The same figures and letters indicate the same bones or parts in each Plate. 



1. Occipital condyle (basioccipital). 



3. Superoccipital. 



4. Paroccipital. 



5. Basisphenoid. 



7. Parietal, 



7'. Parietal foramen. 



8. Mastoid. 



12. Postfi-ontal. 



13. Median ridge of bony palate, proba- 



14. Prefrontal. 



20. Palatal. 



21. Maxillary. 



22. PremaxiUary. 

 24. Pterygoid. 



26. Malar. 



27. Squamosal. 



28. Tympanic. 



32. Mandibular symphysis. 



bly the vomer. 



c. Canine tusk. 0. Orbit, n. External nostril, pn. Internal nostril, x. Dentary ridge. 

 V. Dentary notch, hy. Occipital hypapophysis. 



