THE SANDALLED ANEMONE. 77 



the annoyance ceases, and is presently full-blown again. 

 It is fond of floating at the surface of its prison, the base 

 dilated at the top of the water, like a swimming Nudi- 

 branch, the body hanging downwards, with the tentacles 

 widely expanded. 



It cannot be considered a common species ; but where it 

 does occur, it is usually in some numbers. It is easily 

 obtained when discovered, as it does not inhabit holes or 

 crevices, but adheres to the smooth rock; it does not 

 appear to indue its body with gravel, or any extraneous 

 substances. Mr. Holdsworth found it not uncommon at 

 Guernsey, with the unexpected habit of lodging under 

 stones on the beach, at low water. At Dartmouth the 

 same observer records its occurrence on the roots of 

 Laminaria, as well as on the rocks. 



In my original notice of the species, I have mentioned 

 the readiness and profusion with which the acontia or 

 armed filaments are shot forth from the body on the 

 slightest provocation. Subsequent observation has abun- 

 dantly confirmed this irritable habit. The character and 

 armature of the cnidce are also there noted. 



The localities of the species are as yet but few, though 

 they are widely scattered. 



Jersey, Guernsey, E. W. H. H. : Dartmouth, E. W.H.E.: 

 Ilfracombe, P. H. G. : Hilbre Island, E. L. W. 



nivea. 



SPHYRODETA. 

 pallida. 



