MANUAL OF THE MOLLUSCA. 



PLATE III. 



Ammonitidce. 



PAGE 



1. Goniatites Henslowi, Sby. -j. Carb. limestone, Isle of Man 93 



2. Ceratites nodosus, Brug. ^. Muschel-kalk, Wurtemburg 93 



3. Ammonites planulatus, Sby. §. Chalk-mai'l, Sussex 94 



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



o. Jason, Reinecke. ^. Oxford clay, Chippenham 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 aiqualis, Sby. f. Chalk-marl, Sussex 95 



10. 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, Fi-ance 97 



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



15. Hamites attenuatus, Sby. ^. Gault, Folkstone 96 



16. Tm-rilites costatus. Lam. ^. Chalk- marl, Sussex 96 



