XI 



PHYLUM MOLLUSCA 



305 



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 ; in/, 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 : /. cten, left ctenidium ; /. neph, left nephridial aperture ; l.nid, 

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

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



