PLATE IX. 



Fig. Page 



1. Metriorhynchus superciliosum, Blainville, sp. ; skull, from above: one- 

 third nat. size. [R. 2030.] 180 



2. Ditto ; tooth : twice nat. size. 



[R. 2033.] 181 



3. Metriorliynchus aff. moreli, Deslongcharnps ; skull, from above : one- 

 third nat. size. [R. 2054.] 188 



1, 4 a. (I) Ditto ; tooth, from outer (4 a) and inner side (4) : twice nat. size 



188 



boc, basioceipilal. 

 //•., frontal. 



J; jugal- 

 mx., maxilla. 



n., nasal. 

 nar., external nares. 



par., parietal. 

 pmx., premaxilla. 

 po.f., postfrontal. 

 pr.f., prefrontal. 

 q., quadrate. 

 sq., squamosal. 



