THE CLOAK ANEMONE. 
127 
pointed out by myself in “ The Aquarium,” in which I have 
tlius explained its manner of growth. — “ The Adamsia 
is evidently an Actinia of a long-oval form, capable of 
development in its long diameter into two lengthened 
wings. Its instinct invariably leads it to select as its 
support the inner lip of some univalve shell ; having ad- 
hered to which, the lateral expansions creep along the shell, 
following its suiface until they have surrounded the aper- 
ture, and meet each other on the outer lip. Here the 
meeting edges unite by mutual adhesion, and seem to grow 
together ; yet the suture is always distinctly visible, both 
by a slight depression, and by a pale line which assumes a 
zigzag form, owing to the terminations of the body-strice 
fitting into the interspaces of the opposite ones.”* 
In Plate HI. fig. 8, 1 have depicted an individual, adherent 
to the shell of Buccinum undatum, in which the lateral lobes, 
though projected around the edges of the mouth of the 
shell, have not yet met each other on the outer lip, but are 
separated by a space of a quarter of an inch. And I have 
seen a very young specimen, less than half an inch in 
diameter, the outline of which was exactly like that of a 
normal Anemone ; the lateral lobes not having yet com- 
menced their extension. This little individual was adherent 
to the inner lip of the shell of a Garden Snail {Helix aspersa ) , 
which had been accidentally washed into the sea. A 
Pagurus Prideauxii had selected the same shell as his 
abode, and to his wanderings it was probably owing that 
the shell had found its way into eight fathoms’ water, a 
mile or two from land. 
This manner of gi’owth is further illustrated by wliat 
takes place at the disease and death of the animal. The 
adhering base begins to peel off, and shrink away from the 
* Aquarium; Ed. i. p. 139; et seq. 
