PLATE XI. 



Fig. 



1. Metriorhynchus leedsi, n. sp. 

 nat. size. 



ang., angular. 



art., articular. 



hoc, basioccipital. 



cor., eorouoid. 

 d., dentary. 



/>., frontal. 



m.r., maxilla. 



n., nasal. 

 nar., external nares. 

 par., parietal. 



par. p., paroccipital process. 

 p.art., preartieular. 

 pmx., premaxilla. 

 I'O.f., postfrontal. 

 pr.f., prefrontal. 

 q., quadrate. 

 s.ang., surangular. 

 spl., splenial. 

 si]., squamosal. 

 sym., symphysis. 



Page 

 195 



skull, from above : one-third 

 [Type specimen, R. 3540.] 



2. Metriorhynchus cultridens, n. sp. ; skull, from above : one-fourth 



nat. size. [Fyp e specimen, R. 3804.] 196 



3. Ditto ; inner side of right ramus of mandible : one-fourth nat. 



size. [Typ e specimen, R. 3804.] 196 



4, 4 a, 4 b, ic. Ditto ; tooth from inner side (4), another specimen from behind 

 (4 a), from inner side (4 I), and in section (4 c) : nat. size. 



[Type specimen, R. 3804.] 196 



