58 Life Beneath the Waves. 



Many other species of crabs besides those 

 just mentioned, have, from time to time, in- 

 habited my aquaria; and so numerous are 

 the varieties to be found in the ocean, that 

 volumes might, (and have been) written 

 respecting them: but as the subject of 

 crabs, however interesting, is not the only 

 one now to be considered, I must refrain 

 from further dilatation thereupon, and in- 

 vite the attention of my readers to other 

 groups of marine curiosities. 



Few people walk along the seashore 

 without picking up mutilated shells of 

 various descriptions, but these broken 

 shells, pretty as they may be deemed, give 

 but a very inadequate idea of the beauties 

 of living, perfect specimens. 



The shells denominated Pectens are 

 amongst the most beautiful of British 



