

90 Life Beneath the Waves. 



tentacles, undefended by shell or any other 

 covering. In consequence of this peculiarity, 

 they are also called Nudibranchiata, or 

 Naked-gilled Molluscs. 



The colouring of some Plumed Slugs is 

 extremely delicate : the one represented 

 crawling on a rock, close to the Squat- 

 lobster, was particularly lovely and fragile 

 in appearance, being of a pearly whiteness, 

 whilst the semi-transparent gills or plumes 

 were tinged with pink. 



The Sea-slug's mode of progression is 

 the same as that of the Chiton, already 

 described viz., by means of one foot, 

 attached to the lower surface of its body. 



Such, my readers, are a few, and a very 

 few, of the countless inhabitants of the sea. 

 Much more could I tell you about them, 

 and many interesting particulars could I 



