522 MAXUAIi OF THE MOLLUSCA. 



PLATE III. 



AmmonitkJa. 



Page 



1. Goniatites Henslowi, Sby. I. Carl), limestone, Isle of Man lOG 



2. Ccratites nodosus, Brug. -J-. Muschelkalk, Wiirtemterg .. 197 



3. Ammonites planulatus, Sby. h. Clialk-marl, Sussex 199 



4. ■ rothomagensis, Brongn. h. Clialk-marl, Sussex 193 



5. spinosus, Sby. \. Oxford Clay, Cbippentam . . 198 



G. ■ bifrons, Brug. J. Lias, Whitby 198 



7. bisulcatus, Brug. \. Lias, Lyme Ecgis 198 



8. Crioceras cristatum. Orb. -|. Gault, S. France 199 



9. Scaphites equalis, Sby. f . Cbalk-marl, Sussex 200 



10. Ancyloceras spinigerum, Sby. f . Gault, Folkestone 200 



11. Helicoceras rotundum, Sby. Gault, Folkestone 200 



12. Toxoceras annulare, Orb. \. Neoeomian, S.France 200 



13. Baculites anceps. Lam. -2-. Clialk, France 201 



11, rtycboceras Emcricianum, Orb. f. Neoeomian, S. France 201 



15. Hamites attenuatus^ Sby. -J. Gault, Folkestone 201 



16. Turrilites costatus. Lam. ^. Clialk-marl, Sussex , 200 



