764 



ZOOLOGY 



SECT. 



the buccal cavity. The name of" liver " (Fig. 660, 1.1. ; Fig. 662, hv.) 

 or digestive gland is given to a large brown glandular mass which 

 extends from the neighbourhood of the salivary glands nearly to 

 the aboral end of the body. It consists of two partly united right 



mant.ca.rl- 



FIG. 658. Sepia cultrata , female seen from the posterio- ventral aspect, the \vall of the mantle 

 cavity divided along the middle line and the twu flaps thus formed spread out so as to expose 

 the contents, ac. nid. accessory nidamental glands ; an. anal aperture with its lateral append- 

 ages ; /. membranous fold attaching the ctenidium to the wall of the mantle-cavity; i/n. 

 external opening of funnel ; inf. cart, infundibular cartilage ; ink. d. ink-duct ; ink. .. ink-sac ; 

 litj. ligamentous band which extends from the anterior wall of the mantle-cavity to the ovary, 

 cut across ; lir. "liver" ; 1. cten. left ctenidium ; I. neph. left nephridial aperture ; I. ?*/</. left 

 nidamental gland ; 1. st. <j. left stellate ganglion ; mant. cart, mantle-cartilage ; mo. mouth ; 

 mus. neck-muscles ; c<\ ovary ; odd. oviduct ; red. rectum. 



and left portions, each of which has a duct opening into the 

 cavity of the alimentary canal opposite the point where stomach, 

 caecum, and intestine meet. Surrounding the ducts and opening 

 into them are masses of minute vesicles (Fig. 661, />, d.) : the 

 secretion of these has the property of converting starchy matters 



