PHYLUM MOLLUSCA 



305 



fn a 71 1. ea. r-Z -1- Xj 



*r - 



inhjdA 



frCJttd. - 



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 : f, membranous fold attaching the 

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

 ca?-t, 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 ; /. cten, left ctenidium ; /. nepk, left nephridial aperture ; I. nid, 

 left nidamental gland ; I. st. g, left stellate ganglion ; mant. cart, mantle cartilage ; 

 mo, mouth ; tnus, neck muscles ; ov, ovary ; arid, oviduct; rec, rectum. 



