240 ' THE STYLET, AND THE GIZZARD OF THE PHOLAS. 



in the stomach, at once proves that it cannot possibly 

 act as a gizzard to the Pholas, or any other bivalve 

 in which it is known to exist. 



In the succeeding chapter I shall endeavour, from 

 personal observation, to shed a slender ray of light 

 upon the function of the stylet 



