IN TUIi CAUIvlVOUOUS DINOCEI'UALIAN llEPTILES. 663 



In recent years Haughton lias described a complete skull of 

 Tajnnocephcdus atherstonei and a new Tapinocephaloid, Slruthio- 

 cephcdus w/iaitsi, and the skull of a small and probably immature 

 Titanosuchid under the name of Moschosaurus longiceps. 



In 1914 van Hoepen briefly described a new Titanosuchid under 

 the name Jonheria truculenta. 



SCAPANODON DUPLESSISl BrOOm, 



In 1904 I gave under the above name a brief description of a 

 new type of Titanosuchid reptile. The type consisted of jaw 

 fragments witii teeth. It was distinguished from Titanosuchus 

 ferox Ow. by having relatively much smaller molar teeth, and in 

 those molais having flattened spade-like crowns. The type came 

 from Zeekoegat, in the Prince Albert distiict. Nothing further 

 has been known of this form till recently. 



A few months ago I visited Mr. W. van der Byl at Abraham's 

 Kraal, also in the Prince Albert district, and looked over the 

 large number of specimens that he had collected in recent years 

 on the farm. Among these wms the weathered skull of a large 

 Titanosuchid. On critical examiuation this proves to be 



Text-fia;iire 1. 



Side view of skull of Scapanodon diiplcssisi Broom. About ^ iiat. size. 



Scajjanodon diqylessisi, and reveals to us the main features of the 

 skull apart from the palate. 



The skull has the nasal, frontal, and parietal regions badly 

 weathered, and the matrix where unweathered is extremely hard. 

 Both sides of the skull are fairly well preserved, and portions of 

 all the teeth of the upper jaw are to be seen. 



The general appearance of the skull will be best understood 

 from the figures given. Though the bones of the frontal region 

 are greatly thickenetl, there is no evidence of great bony bosses 

 overhanging the oibits as in Anteosaurus. The pineal foramen 

 is very large, and the occiput is very much flatter and broader 

 than in Anteosaurus. The whole skull is also relatively much 

 broader in Scapanodon. 



44* 



