XIIl] 



SEPIA 



313 



FIG. 143. Posterior view of male of Sepia cfficinalis x 1. The mantle- cavity 

 lias been opened to expose its contents. 



1. Long arm half protruded. 2. A short arm ; this one is hecto-cotylised. 

 3. Lips surrounding horny jaws ; mouth. 4. External opening of 



funnel. 5. Eye. 6. Cartilaginous knob on mantle which fits into 



the socket 8. 7. Gill. 8. Socket for 6. 9. Anus. 10. De- 

 pressor muscle of the funnel. 11. Keproductive pore. 12. Bight kidney 

 papilla. 13. Visceral mass. 14. Fin. 



