EXPLANATION OF PLATE LXXIV. 



Fig. 1. — Sepia dannevigi ? [493], ventral aspect of type 



specimen. 

 Fig. 2.— Sepia dannevigi S [493], left tentacle club of type 



specimen. Drawn by R. N. Wenzel. 

 Fig. ii.— Sepia chirotrema % [524], dorsal aspect 'of head. 

 Fig. 4. — Sepia chirotrema 5 [524], right tentacle club of same 



specimen. Drawn by R. N. Wenzel. 

 Fig. 5. — 8ame in lateral view to shoA\' the fenestrse in the 



marginal fold ; same scale. 

 Fig. i}.~~ Sepia chirotrema c^ [522], oral face of left ventral 



arm of type specimen, showing hectocotylization. 

 Fig. 7. — Oblique lateral view of portion of distal region of 



same under greater magnification. 

 Fig. 8. — Oral aspect of distal portion of same ; same scale 



as Fig. 7. 

 Fig. 9. — Schematic cross-section of arm in same region ; same 



scale. 



