568 
ig. 14. 
ig. Ld. 
Fig. 
Fig. 
5° 
5: 
TRANSACTIONS LIVERPOOL BIOLOGICAT. SOCIETY. 
PekG. 
hfe 
18. 
Cephalopedal mass, dissected to show relation 
of buccal mass to bases of the arms—from 
ventral surface. x 3, 
Transverse section of mantle in region of 
cartilaginous stylet. Highly magnified. 
Right stylet (a) dorsal view; (6) from right 
3 
side. x 3. 
Pirate LY. 
Alimentary canal, dissected out from body, to 
show relations of various parts; crop turned to 
the right, buccal mass to the left, and liver 
forwards. x 2. 
Oesophagus with crop, and stomach; slit open 
to show ridged chitinous lining of all three 
regions. Muscular walls of stomach turned 
back from the chitinous lining. x 1. 
T. S. stomach, showing thickened grinding 
pads, and corresponding thickened cuticle. 
Buccal mass, from right side. x 1. 
Right posterior salivary gland; imner surface. 
Right anterior salivary gland; inner surface. 
Ventral surface of buccal mass, showing sub- 
lingual salivary gland. x 1. 
Sagittal section through buccal mass, and 
anterior portion of oesophagus. x 1. 
Two rows of teeth from radula: much enlarged. 
Sagittal section of ink sac. x 2. 
Jaws, from left side. x 1. 
Spiral caecum ; ventral view, showing entrance 
of hepato-pancreatic duct. x 1. 
Anal ear (enlarged). 
Inner wall of terminal part rectum, showing 
aperture of ink duct on dorsal papilla. x 2. 
