81 
Probably be considered a variety of the Actinia gemmacea, 
as that kind is liable to so many variations, but it bad not 
H' e appearance of belonging to that species. The favourite 
s ite for them is on the claw of the Corwich crab, (M. 
Ve rrucosa) and on the Pinna ingens. 
ANTHEA. Johuston. 
Generic Character: Body cylindraceous, adhering by a broad 
hase ; tentacula disposed in circles round the mouth, 
elongated, tapered, and incapable of being retracted 
within the body. Johnston. 
SEA-TORCH THISTLE. a. Cereus. Body smooth, 
cylindrical, longitudinally farrowed, ending superiorly in 
a waved line; "tentacula long and generally tipped with 
red. PI. xiv., fig. 2. 
. Actinia cereus, Ellis and Solander’s Zooph., p. 2, no. 1. 
^urton’s Lin., vol. 4, p. 103. Actinia sulcata, Stewart’s 
vol. 1, p. 394. Fleming’s Brit. An., p. 498. Pen- 
^rit’s Brit. Zool., vol. 4, p. Hydra cereus, Stewart’s Elem., 
'°1. 2, p. 451. Anthea cereus, Johnston’s Brit. Zooph., 
P-221. 
Sab. In the crevices of the rocks ; Polperro, Talland 
Looe, Fowey ; common. 
This species is very common on all that part of the south 
! : ' )a st that has been examined, as much, if not more so than 
le _ Sea Anemone, A. Mesembryanthemum, but as it is gre- 
^rious and confined to pools and crevices of rocks which 
ij Wa 3’ s remain covered with the sea, and of a light colour, 
( |. 18 not so readily observed as that species which lies in- 
,.‘ s criminately scattered over the rocks between tide marks, 
pools they prefer arc those which have a southern aspect 
which are visited by the sea at every tide. Sometimes 
.,y occur only in small companies, and at others singly, 
fording to the nature of the spot, but I have frequently 
’p. n °d them covering a surface ot three feet in diameter. 
0 ., e animals are generally in close approximation with each 
(1) er > and most commonly in contact. They are liable to so 
^' ln y changes of form that a minute description of them 
be both tedious and useless. In a contracted state, 
o * ! y a re generally columnar and of equal diameter through- 
So ‘,’ a nd the tentacula diminished both in size and length; 
to.r' e ^ tnes they are hemispherical, with the tentacula pressed 
^aether and protruding from a central orifice ; at others 
Df al bod * ' s drawn towards the base and flat, while the 
t a * . SUr face is exposed or covered only by the contracted ten- 
«t ri ' a - The surface of the body is smooth, but longitudinally 
th e ec > the furrows run from the base to the margin of 
° ra l disc, where they terminate in a waved or festooned 
