72 



(^RDER IV.— CEPHALOPODA. 



DIV. I.— POLYTHOLAMOUS CEPHALOPODA. 



ORTHOCERATA. 



Belemmtks 

 3849 Orthocera linearis, Brown, G. Britain. 



NOSODARIA 



HlPPURITES 



CONILITES 



3819 Spirula 

 Spirolina 



LlTHLOLlTES 



LITHUOLATA. 



Peronii, Lam., West Indies. 



