FROil THE OXFORD CLAY OF PETERBOROUGH. 



285 



Eigs. 1-4. — Mandibles and Teeth of Suchodus durobriveasis 

 and Metriorhynclius Moreli. 



Fig. 1. Autei-ior portion of the luaudible oi Metriorhynchus Moreli; from the 

 Oxford Clay of Wiltshire. (Brit. Mas. No. 46323.) 



2. Anterior portion of the mandible of Sachodits durobrivcnsis ; from the 



Oxford Clay of Peterborough. 



3. Outer side of tooth of Suchodus diirohrive7isis ; from Peterborough. 



4. Tooth of Metriorhynchiis ; from Willesden. 



