Life Beneath the Waves. 85 



sight, to be moulded in one piece. Such, 



however, is not the case, several hundreds 

 of pieces, or, as they are properly termed, 



u pentagonal plates," being joined together, 

 but so neatly, that very careful scrutiny is 

 necessary to observe them at all. 



The spines of the Sea-urchin in the illus- 

 tration are pale green, tipped with purple : 

 the Echinus is also called the Sea*egg, 

 because in some places it is used as an 

 article of food. 



And speaking, or rather writing, of articles 

 of food, I will now give a few particulars 

 respecting shrimps and prawns; mentioning, 

 in the first place, that the appearance of 

 these delicacies, when alive, is very dif- 

 ferent from that produced by the influence 

 of boiling water. 



Instead of being of a delicate pink as it 



