THE ANIMAL KINGDOM. 



Under the tail there are some still more feeble limbs 

 called the false feet, which are used for fixing the eggs 

 which the female lobster attaches to them. 



To Crustacea belong all the various kinds of Crabs, 

 Lobsters, Prawns, Shrimps, Sandhoppers, Water- 

 Fleas, &c. &c. ; also 

 Barnacles (Fig. ioo),and 

 Acornshells. You have, 

 no doubt, seen Barnacles 

 attached by long leathery 

 stalks to the timbers of 

 piers, but these animals 

 were not always so fixed ; 

 in their early life they 

 floated gaily along in the 

 water, and after under- 

 going several changes 

 they have lost their tra- 

 velling habits. But you 

 will, no doubt, wish to 

 know how they obtain 

 their food : well, every 

 now and then the shell 

 opens, beautiful feather- 

 like arms spread forth, 

 and entangle the minute 

 animals, or other morsels Fj g> ICOt 



of food which may come BARNACLES. 



in the way of this living 



net, and draw them into the mouth, where they are 

 crushed by the jaws. These arms, which curl round in 

 beautiful forms, are called 'm, and the animals arc thus 

 classed under the name of Cirripeda.* 



* From cirrus, a lock of half ; ftnd/rf, a foot. 



