27 



FEEDERS ON ANIMAL FOOD, (Zoophagi.) 



The Marble Cone, ( Conus marmorcus.) 

 Lamarck notices no less than 181 recent species of the 

 Cone shell. The Marbled Cone figured below, is found 

 in most of the Asiatic seas, and is not uncommon ; it is 

 of a dusky colour, and covered wth angular white spots. 



Voluta diadema. 



Cortus marmorcus. Columbclla mcrcatorla. 



The section of this shell points out in a remarkable 

 manner the economy and providence of the Creator, so 

 visible in all his works. 



It will be seen on referring to the engraving, that the 

 shell is much thicker in the outward part of its coat 

 than in any other part ; and this exceeding thickness is 

 necessary for the protection of the soft body of its in- 

 habitant. In the course of the growth of the animal 

 the shell is enlarged, and that part that was external 

 becomes internal, the last made portion of the shell 

 forming the outer wall ; if, therefore, the inner part of 

 he shell retained its original thickness, its v/eight 



C 2 



