110 
Z. HYDROIDA. 
CORYNE. 
laria affinis, Turt. Gmel. iv. 068. Turt. Brit. Faun. 210. Stew. Elem. ii. 
438. Bose , Vers. iii. 92. Coryne squamata, Jamesonm Wern. Mem. i. 
565. Lam. Anim. s. Vert. ii. 62, 2de edit. ii. 73. Bose, Vers. ii. 279. 
Fleming in Edin. Phil. Journ. ii. 87. Flem. Phil. Zool. ii. 616, tab. 5. 
fig. 1. Flem. Brit. Anim. 553. Coldstreamm Edin. New Phil. Journ. ix. 
234. Stark, Elem. ii. 443 La Coryne ecailleuse, Blainv. Actinolog. 
471.. C. multicornis, Templeton in Mag. Nat. Hist. ix. 419. Hy- 
dra capitata, Mull. Zool. Dan. prod. 230. 
Hah. Parasitical on sea weeds, corallines, stones and dead shells, 
at and within low- water mark. “ On the shore of the island of Bur- 
ra, and on the Holm of Cruster, in Bressay Sound, in Shetland,” 
Jameson. At Abercorn ; and at the Isle of May, Rev. Dr Fleming. 
Island of Bute, Dr Coldstream. Maybole, Ayrshire, Rev . George 
Gray. “ Found in great plenty on Fucus vesiculosus at the White 
House Point, Belfast Lough ; Aug. 1807,” J. Templeton , Esq. In 
Berwick Bay, not uncommon. 
Polypes in general gregarious, fixed by a narrow disk, from two to 
six or eight lines in height ; clavate or cylindrical with a knobbed 
head, rose-coloured or white, smooth, fleshy ; the head or upper part 
furnished with from 5 to 25 scattered filiform tentacula, which are 
usually much shorter than the body, and not always of equal lengths. 
In gravid individuals the oviform gemmules hang from the bases of 
the tentacula in one or several clusters ; they are of a round or el- 
liptical figure, rose-coloured with a darker centre, and large in pro- 
portion to the animal. 
Towards the roots of the tentacula we can frequently observe a 
reddish spot which probably indicates the position of the stomach ; 
and a dusky line prolonged down the centre of the body appears to 
show that the latter is hollow, the canal being doubtless intestinal. 
The tentacula are also tubular, as I infer from their being marked 
with a similar line : unlike those of the Hydra they are smooth, or 
merely crenulate, but like them they are capable of being shortened 
and elongated at will, though to a less extent. The form of the body 
is also varied at pleasure, but all its motions are slow, and indicate a 
very inferior degree of irritability. I have never been able to disco- 
ver a mouth or aperture on the top on the body, but Dr Coldstream 
says, “ after having been kept in small vessels of sea-water for some 
hours, without renewal of the water, some of the animals protrude 
the inner surface of the mouth, so as to present a convex disc, with 
the tentacula ranged round it.” — The young are of a fine pink or rose 
colour : at first they resemble little smooth rounded tubercles, which 
gradually elongate, and soon acquire one, then two, three or four 
tentacula, and so on until the number of maturity is completed, for 
these organs are developed in succession. 
