o88 MR. R. I. POCOCK OX 



cusp has the front borclei* more rounded and the very fine crest 

 that runs down it is defined on the inner side by a very indistinct 

 groove. The antero -internal cusp is wider and rises further back 

 and has no distinct little crest running inwards towards the 



o 

 H 



antero-external cusp. In C. latrans the crest traversing the 

 anterior edge of the antero-external cusp is more pronounced 

 and is defined by a distinct groove, the two combining to make 

 the edge of this cusp more cutting than in C. antarcticus. The 



