PHYLUM MOLLUSCA 



305 





inh.d-\ 



Cicjiid. \ 



Fig. 190. — Sepia cultrata, female seen from the posterior aspect, the wall of the 

 mantle-cavity divided along the middle line and the two flaps thus formed spread 

 out so as to expose the contents, ac. nid, accessory nidamental glands ; an, 

 anal aperture with its lateral appendages ; /, membranous fold attaching the 

 ctenidium to the wall of the mantle-cavity ; inf, external opening of funnel ; inf. 

 cart, infundibular cartilage; ink. s, ink-sac; ink- d, ink-duct; lig, ligamentous 

 band which extends from the anterior wall of the mantle-cavity to the ovary, cut 

 across ; liv, liver ; /. den, left ctenidium ; /. nep/i, left nephridial aperture ; l.nid, 

 left nidamental gland ; /. st. g, left stellate ganglion : want, cart, mantle cartilagf ; 

 mo, mouth ; mus, neck muscles ; ov, ovary ; ovid, oviduct; rec, rectum. 



