Plate Va. 



c. connective tissue m. muscle fibres 



eh. chromatophores ml, muscle fibres, longitudinal 



ep. epithelium sm. subeutaneous muscle bundles 



g. granulär cells v. blood vessels 



Potypus scliultzei. 

 Fig. i. Inner aspect of the arms to show the size and arrangement of the suckers; X 3 / 4 . 

 „ 2. Ventral side of the end of the hectocotylised arm ; X 3 / i . 

 „ 3. Tip of the hectocotylised arm ; X 3. 



Sepia tuberculata. 

 „ 4. Ventral surface, showing the arrangement of the tentacular suckers, the papillae near the tip of 



the ventral arm, and the two corrugated areas on the ventral aspect of the mantle; about two- 



thirds natural size. 

 „ 5. Dorsal aspect of the shell ; almost natural size. 

 „ 6. Ventral aspect of the shell ; almost natural size. 



„ 7, 8. Portion of the dorsal surface; (7) of the head; (8) of the mantle; almost natural size. 

 „ 9. Portion of the dorsal surface of the mantle ; X 3,5. 

 „ 10. Section through one of the dorsal papillae ; X 25. 



„ 11. Section near the upper part of one of the secondary papillae; X 340. 

 „ 12. Section through the papillary area near the tip of the ventral arm; X 25. 

 „ 13. Section through the tip of one of the papillae of the ventral arm; X 340. 

 ,, 14. Section through part of the corrugated portion of the ventral surface of the mantle ; X 25. 



