MA^'UAL OF THE MOLLUSCA. J> 



PLATE III. 



Ammonitidce . 



PAGE 



1. Goniatites Henslom, Sby. ^. Carb. limestone, Isle of Man 93 



2. Ceratites nodosus, Brug. i. Muschel-kalk, Wurtembui-g 93 



3. Ammonites planulatus, Sby. ^. Chalk-marl, Sussex 94 



4. rhotomagensis, Brongn. ^. Chalk-marl, Sussex 94 



5. Jason, Reinecke. |-. Oxford clay, Chippenliam 94 



6. bifi-ons, Brug. \. Lias, Whitby , 94 



7. bisulcatus, Brug. \. Lias, Lyme Regis 94 



8. Crioceras cristatum. Orb. f. Gault, S. France 95 



9. Scaphites sequalis, Sby. f. Chalk-marl, Sussex 95 



1 . Ancyloceras spinigerum, Sby. f . Gault, Folkstone 95 



1 1 . Helicoceras rotundum, Sby. Gault, Folkestone 95 



12. Toxoceras annulare. Orb. \. Neocomian, S. France 95 



13. Baculites anceps. Lam. ^. Chalk, France 9? 



14. Ptychoceras Emericianum, Orb. f. Neocomian, S. France 96 



15. Hamites attenuatus, Sby. i. Gault, Folkstone 90 



16. Turrilites costatus, Lam. •§-. Chalk- marl, Sussex 96 



