CEPHAL0P0D8. 77 



The animal holds on to the sides of its shell by the so-called 

 "sails" or broad thin ends of two of its arms, which se- 

 crete the shell. 



Fig. 93.— Giant Squid, reduced in size. After VeiTill. From Emerton. 



LiTEKATURE. — Article Mollusai. by E. R. Laukester, in Encyclo- 

 psedia Britannica. Woodward's Manual of the Mollusca, 1868. 



