EXPLANATION OF PLATE LXXXII. 



(All the figures on this plate were drawn by R. N. Wenzel.) 



Fig. 1. — Polypus variolatus ^ [527], oral aspect of hectoco- 



tylus. 

 Fig. 2. — Polypus variolatus $ [528], large supraocular cirrus 



of left side. 

 Fig. 3. — Papillae from near middle of dorsum of same speci- 

 men ; same scale. 

 Fig. 4. — Region of left eye of same specimen. 

 Fig. 5. — Opisthoteuthis pluto [464], 14tu-16th suckers of right 



dorsal arm of type specimen ; cirri extruded. 

 Fig. 6. — Opisthoteuthis pluto [468], 21st-22nd suckers of right 



dorsal arm ; cirri partially retracted. 

 Fig. 7. — Opisthoteuthis pluto [468], pteropallial cartilage seen 



in situ from above (muscle of left side removed). 

 Fig. 8. — Right lateral portion of same preparation after 



excision, oblique lateral view ; same scale. 

 Fig. 9. — Opisthoteuthis persephone [480], 7th-22nd suckers of 



right dorsal arm of type specimen ; cirri retracted. 



Fig. 10.- — Opisthoteuthis persephone [484], pteropallial carti- 

 lage seen in situ from above. 



