PLATE II. 



Fig. 



1. Ammonites subcontractus, p. 11, side view. 

 la. — — front view. 



2, 2a. — — y° un g of. 



3. Ammonites macrocephalus, var.,j». 12, side view. 

 3 a. — — front view. 



4. Ammonites arbustigerus, p. 12, side view. 

 4a. — — front view. 



5. Nautilus dispansus, p. 9, side view. 

 ba. — — front view. 



