xi PHYLUM MOLLUSCA 297 



body (Figs. 182, 183, 1S5, 1S7) is bilaterally symmetrical. 

 The foot, instead of extending along the ventral surface 



Fig. 182. — Sepia CUltrata. Entire animal viewed from the dorsal aspect. New 



Zealand. 



of the body in the region behind the mouth, as it does in 

 Pelecypoda and Gastropoda, occupies a more anterior posi- 



