133 
Cor., p. 87, no. 5, pi. 32, fig. d D. Alcyonimn gelatinosum, 
Ellis and Solander’s Zooph., p. 170. Turton’s Lin., vol. 4, 
P. 653. Fleming’s Brit. An., p. 517. Lamouroax’s Cor. 
Elex., p. 350. Stewart’s Elem., vol. 2, p. 432. Johnston’s 
Erit. Zooph., p. 300, pi. 41, 6gs. 1 — 3. 
Hab. On shells and stones from deep water; not rare on 
Hie south and south-west coast. 
This species varies in height lo sixteen inches, and is said 
fometimes to grow as high as “ several feet; ” in its texture 
*t is spongy or fleshy, semi-opaque, dotted, and of an amber 
colour, varying from the light yellow, to the brown tint ; 
the surface is even, smooth, polished, tabulated, and dotted ; 
the polypes lie beneath the surface in the substance of the 
Polypidom, with which they are very intimately connected. 
Che tentacula, though of very unequal length, are long, 
ciliated, capable of being folded up, and so withdrawn into 
the cell; in the earliest state of growth, it is a simple in- 
crustation, but soon assumes a linger-liko prolongation, from 
"’bich lobes afterwards sprout on all sides. 
This was considered a vegetable by the older botanists ; 
Eay thought it a Fucus ; Ellis appears to he among the first 
to have discovered its true character. 
•A- HIRSUTUM. Polypidom fleshy, simple or lobed, 
compressed, surface granular. 
A. hirsutum, Fleming’s Brit. An., p. 517. Johnston’s 
Erit. Zooph., p. 303, pi. 42, figs. 1, 2. 
. Hab. On fuel about low water mark, and on a Pinna 
%n gens from deep water. Polperro, Tallandsand hay, Meva- 
gissey bay. 
All the specimens of this species which I have found in 
the Cornish seas, were long, slender, very much compressed, 
8 emi. transparent, and fleshy, with a slightly granular surface, 
?Wded with brown, and marked with black specks; but it 
ls said to be sometimes sub-cy lindrical and palmate. It is 
s °ft and flexible. Its structure is cellular, the cells delicate 
ai >d compactly arranged. The granulations oi the surface 
are formed by minute conoidal papill®, which are closely 
crowded together. The tentacula vary in number from six- 
tcn to eighteen. 
A - SUBVIRIDE. R. Q. C. Massive, lohulated, of a 
brownish green colour; surface irregular, covered with 
s *uall pores, interspersed with larger ones ot very irregular 
shape. 
Hab. From deep water, ofif the Deadman point. 
^Ehen recent and living, it is generally of a greenish 
ra bge, but is sometimes of an olive brown or green colour, 
