PLATE II. 



Fig. 



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

 Iff. front view. 



2, 2. young of. 



3. Ammonites macrocephalus, var., p. 12, side view. 

 3. front view. 



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

 4a. front view. 



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



5 a. front view. 



