CLASS V 



CEPHALOPODA 



641 



Agathiceras Gemm. (Fig. 1212). Carboniferous. Stacheoceras Gemm. (Fig. 1213). 

 Carboniferous and Permian. Popanoceras Hyatt (Fig. 1214). Permian. Parapopano- 



FiG. 1213. 



Septa of Stacheoceras ganti Smith. Coal 

 Measures ; Texas (after J. P. Smith). 



Fig. 1214. 



Popanoceras midti striatum Gemm. 

 Permo - Carboniferous ; Sosio, Sicily. 

 '•^/■j (after Gemmellato). 



B 



Fio. 1215. 



A, Megaphyllites inseclus 

 Mojs. Upper Trias ; Sand- 

 line;, near Aiissee, Austria. 

 B, Suture-line of M. jarbas 

 (Miinster). 





f 



^ f * 



Fig. 1216. 



Septa of Megaphyllites haugi Hyatt and Smith. Middle 

 Trias ; California. 



Fig. 1217. 



Lohites delphinocephalus (Hauer). Upper 

 Trias; Sandling, near Aussee, Austria. A, li, 

 External aspect. '', Median section. D, 

 Suture-line, Vi- 



Fig. 121S. 



Lohites pisum (Miinster). 

 Keuper (Caraiolan) ; St. 

 Cassian, Tyrol. 



ceras Haug ; Megaphyllites Mojs. (Figs. 1215, 1216). Trias ; Europe. (?) Lohites Mojs. 

 (Figs. 1217, 1218). Trias; Europe. 



VOL. I 2 T 



