50 



CKETACEOUS GROUP. 



Nautilus inaequalis, Sow. 



expansus, Sow. 



plicatus, Fitton. 



radiatus, Sow. 



simplex. Sow. 



undulatiis. Sow. 

 Ptychoceras adpressum, D'Orb. 

 Scaphites sequalis. Sow. 



Scaphites constrictus, D'0r3. 



gigas. Sow. 



HOlsii, Sovj. 

 Turrilites Bergeri, Brong. 



costatus. Lam. 



tuberculatus, Bosc. 



undulatus, Sow. 



Pteropoda. 

 Bellerophina minuta, D'Orb. {NmUUus, Sow.) 



