39 
^af>. On floating fnci ; on fuci near low water mark, on 
^-nder surface of stones in brackish water; gregarious; 
til 
j J 1 *.'* small species varies from half an inch, to one inch 
to le 'gbt, and is liable to variations in colour from a white 
^ a deep red. It is gregarious on almost all the larger sea 
j^d, about the tide marks, especially the Fucus serratus. 
^ ,s footed by small creeping tubular fibres, which trail along 
!, e surface of the substance on which it grows and gives oif 
e r ' V Poljpidoms at irregular intervals in its course. It is 
j^'^and sparingly branched, the stem is zig-zag and dirided 
en) ° Joints. At the upper extremity of each internode is an 
llj ^gement, on which rests a ringed peduncle which bears 
a)1 ° e H. Tho peduncle is composed of from four to sis 
Eolations. The cells are campanulate with even unarmed 
he f tUres ’ veslc ' cs are axillary, vasiform, and are to 
>°uod throughout the summer. The horny sheath of this 
» r l he fallowing species, is so transparent, that the central 
j. 'Oular pulp, and the polypes with their tentacula may be 
v 'felly seen through its sides. The number of tentacula 
*' es from fourteen to twenty eight, 
die ( |° le °* l * le fi Dest specimens I have seen were growing on 
^ dorsal and caudal bus of a Picked Dogfish. 
•^ELATINOSA. “ Subordinate brauches dicholomously 
fanched; cells on twisted footstalks, campanulate, with 
^ margins.” Ellis. PI. x. 
v 0 [ Uc °ides setaceuni tenuissime alatum, Raii, Synop. Stirp.» 
l>6(j P" D0 - pl’ 2, Gg. 2. Coratlina filiformis ramosa 
P. oi ncn ** s calyculorum contortis, Ellis’ Coral., pi. 38, fig. 3, 
8 . pl- 12, fig. c C. Sert. gelatinosa, Stewart's Elem., 
Atj" P* 444. Campanularia gelantinosa, Fleming’s Brit. 
PI. o ®49. L. gelatinosa, Johnston’s Brit. Zooph., p. 1S2, 
j figs, 3 and 4, pl. 23, fig. 1. 
p 6r 8 *> On stones near low water mark and in pools. Pol- 
, common. 
tiseg ' s s pecies” Johnston says “in its most perfect state 
c Qrtl to the height of eight or ten inches.” But it is more 
lonly found about one, and so closely resembling 
llifi r . *■ it will be best described in connection with it, 
dnt through the year. 
'•Ufv. Ul tlgut Ul ICU it. 113 U.UIO 
Inst, ii 011 ^ *°und about one, and so closely resembling the 
" 6 i . if w 'll be best described in connection with it. In 
.*-abit and mode of growth there is but little distinction 
fbe stem is more waved, not so zig-zag, and more 
er " the cells are larger and deeper; the tootstalks 
On 
v e S j c , aQ d not situated on any swelling of the stem. The 
os are vasiform, axillary, and on ringed footstalks, 
thej^nner in which the gemmules are produced differs. In 
% r) dst species tiie whole of the granular pulp is formed into 
be nim u | CS} then they escape, leaving the case empty ; in 
