XI. 



STONESFIELD FOSSILS. 



177 



Acteeonina parvula. Stonesfield. 

 Amberlya nodosa. Stonesfield. 

 Nerinaea funlculus. Stonesfield. 



gracilis. Stonesfield. 

 Turbo ornatus. Sow. Eyeford, Sevenhampton. 



CEPHALOPODA. 



Ammonites bullatus. D'Orb. Stonesfield. 



gracilis. Buck. Stonesfield, Sevenhampton. 



hecticus. O.G.8. Stonesfield. 

 micromphalus. n. s. Phil. Stonesfield. 

 triplex. Sow. Sevenhampton. 

 Waterhousii. M. and L. Stonesfield. 

 Belemnites ari-pistillum. Lhwyd. Stonesfield, Eyeford. 



Bessinus. D'Orb. Stonesfield, Eyeford. 

 Nautilus Baberi. M. and L. Stonesfield. 



FISHES. These are all from Stonesfield ; some of them occur at Eyeford and Seven- 

 hampton. The names are chiefly from Agassiz. 



Diagram XXXVII. Teeth of Placoid Fishes. Stonesfield. Natural size. 



i. Hybodus jugosus. Phil. 2. Hybodus polyprion. Ag. 3. Hybodus poly- 



prion. Ag. Perfect. 4. Hybodus grossiconus. Ag. 5. Hybodus grossiconus. 



Largest example. 6. Hybodus grossiconus, without lateral denticles. 7. Stro- 

 phodus magnus. Ag. Surface worn smooth in places. 8. Strophodus lingualis, 

 Phil., with unworn surface. 9. Strophodus tenuis. Ag. Perfect surface, like 



Acrodua. 10. Acrodus. 



Cestraciontidce. 

 Acrodus leiodus. 

 Asteracanthus semisulcatus. 

 Ceratodus Phillipsii. 

 Leptacanthus serratus. 



semistriatus. 



Nemacanthus brevispinus. 

 Pristacanthus securia. 

 Strophodus favosus. 



magnus. 



tenuia. 



lingualia. n.s. Phil. 



