Life Beneath the Waves. 63 



consists in its having a large lip ending in 

 several points, and bearing a resemblance to 

 the webbed foot of the Pelican (whence 

 its name). 



The size of this mouth or lip depends 

 upon the age of the shell ; when young, the 

 lip is small, but when the shell arrives at 

 years of maturity, the lip becomes dis- 

 proportionately large. 



Numerous marks will be seen on the 

 shell, upon looking at the illustration : these 

 marks are prominent, and are generally 

 reddish-brown, on a surface of the same 

 hue, but considerably lighter. The inside of 

 the lip is smooth, and of a faint buff, or 

 salmon colour. 



The shells called Trochus, or Top-shells, 

 are very numerous on some of our shores, 

 and a large quantity of different kinds and 

 sizes may be picked up in the course of a 



