Procolophon. 11 



is well shown, and also the structure of the pterygoid, and its 

 relations to the quadrate and sciuamosal. 



Presented by Messrs. A. K. & H. Trollip. 

 Fernroeks, Tafelberg. 



7. Imperfect cast of small skull and upper cervical vertelu-aj. 

 The specimen also shows the cast of the interclavicle, left clavicle 

 and left scapula and precoracoid. 



Presented by Messrs. A. E. & H. Trollip. 

 Fernroeks, Tafelberg. 



S. Bi'oken nodule showing remains of skull and upper vertebrae 

 of a medium-sized animal. Fairly good impressions are shown 

 of the lower jaws and of the right quadrato-jugal horn. The 

 central region of the skull has been broken across above the 

 pterygoids, and shows the upper surface of these bones which have 

 not been weathered out, and also the upper surface of the basi- 

 sphenoids and basioccipital. Owing to incomplete weathei ing the 

 upper cervical vertebrae cannot be very distinctly made out, but 

 there appears to be a rib springing from the axis and from each 

 of the succeeding vertebra;. 



Presented l)y Messrs. A. E. & H. TROLLIP. 

 Fernroeks, Tafelberg. 



9. Badly weathered nodule, showing cast of back of the bead 

 and of a number of cervical and dorsal verteljra^, and ribs of a 

 moderate-sized animal. Though the parietals are large, the 

 (luadrato-jugal bones are smaller proportionally than in some 

 other specimens. The connection of the quadrate aiul the 

 pterygoids is very well shown. 



Presented by Messrs. A. E. & H. TROLLIP. 

 Fernroeks, Tafelberg. 



10. Fine cast of tlie bones of a small animal. The Iowim- jaw 

 lias l)nt <S teeth. Casts of a portion of the interclavicle and of both 

 chivicles are shown. There are also fairly good casts of the left 

 precoracoid and coracoid, and of the right scapula and humerus. 



Presented by Messrs. A. E. & H. TROLLIP. 

 Fernroeks, Tafell)erg. 



