EXPLANATION OF PLATE XXII. 
Fie. 
54. BELEMNITES AALENSIS. 
! Lateral view of a specimen from White Nab, Scarborough 
d. Dorsal aspect of the same. 
I’. Lateral view of another specimen, showing plainly the lateral groove. 
v. Ventral aspect, somewhat striated. 
d’. orsal aspect, also striated, and showing the two grooves. 
s. Cross section not far from the end. 
s. Cross section, showing the internal parts to be marked with several 
short grooves. 
