LIST OF ILLUSTRATIONS. 



FIG, PAGE 



THE OCTOPUS {Octopus vulgaris) Frontispiece. 



1. THE PAPER NAUTILUS {Argouauta Argo) 5 



2. SUCKER OF THE OCTOPUS 21 



3. MANDIBLES OF THE OCTOPUS 25 



4. TONGUE OF THE OCTOPUS 26 



5. THE OCTOPUS SWIMMING 28 



6. EGGS OF THE OCTOPUS 58 



7. THE COMMON CUTTLE-FISH {Sepia officinalis) 67 



S. SEPIOLA RONDELETII 70 



9. THE COMMON SQUID {Loligo Vulgaris) 71 



10. EGGS OF THE CUTTLE-FISH {Sepia officinalis) .... 73 



11. SPAWN OF THE COMMON SQUID {LoligO vulgaris) . . . . 76 



12. FAC-SIMILE OF DE MONTFORT's '^ Poulpe Colossal" . . . ZOI 



