xxxiv LIST OF ILLUSTRATIONS 



FIG. r* 



705. Shell of Argonauta argo . . 7o 



706. Segmentation of Loligo 774 



707. Blastoderm of Sepia 775 



708. sections 77 



709. Development of Loligo 776 



710. 77 r 



711. 77", 



712. ...... 778 



713. Diagram to illustrate the relationships of the Cephalopoda . . 780 



