130 EXPLANATION OF PLATES. 
Fam. Ammonacea. 
FIG. 
477 Ammonoceras, (from Blainv.) 
478 Ammonites. a, break in the shell, shewing the sinuous 
septa. 
479 Oeeslees crassus. Globulites. Nonnull, reduced. 
479* ———— discus. Aganides, Montf. 
480 Goniatites striatus. 
481 Scaphites equalis. 
482 Crioceratites Duvallii. 
483 Turrilites tuberculatus. 
484 Baculites Faujasii. Portion near the centre. 
484* Hamites cylindricus. a, internal cast of part of the 
shell; 6, hollow external cast of the remainder. 
Division. MonotHaLtaAmMous CEPHALOPODA. 
485 Argonauta Argo. 
486 Bellerophon tenuifasciata, (from Sow. Gen.) 
487 The same, showing the dorsal keel. 
Order. HETEROPODA. 
488 Carinaria Mediterranea. 
The actual number of figures is five hundred and thirty. 
Sp RE Pal bee 1 oe ee ee ee Se 
George Odell, Printer, 18, Princes--street, Oxford-street. 
