ECHINODERMATA OF THE L.M.B.C. DISTRICT. 175 
My thanks are due to W. Percy Sladen, Esq., the Rev. 
Canon A.M. Norman, and Professor Jeffrey Bell, for their 
courteous assistance during the preparation of this report. 
CRINOIDEA. 
Family. CoMATULID. 
Antedon rosaceus, Linck (sp.). 
Comatula rosacea, Fleming, ‘‘ Hist. British Animals,” 
p- 490, 1828; Forbes, ‘‘ British Starfishes,”’ p. 5. 1841. 
This species was found to occur in large numbers, at a 
depth of 10 fathoms, off Cemmaes Bay, North Anglesey, 
during the ‘‘Hyzna” Expedition of 1886. It was also 
taken in May, 1888, from a depth of 20 fathoms, off Port 
Erin. It occurs, too, off Bull Bay, on the north coast of 
Anglesey. 
OPHIUROIDEA. 
The successive dredging expeditions of the committee 
have not resulted in the discovery of any new Ophiurids, 
nor are there any new localities to record. I may, however, 
mention a specimen of Ophiothrix pentaphyllum, which 
I dredged from the Menai Straits, off Bangor, in August, 
1887, and which agrees most remarkably with Forbes’s 
description of his Ophiocoma minuta. The disk measures 
3 mm. in diameter, and is decidedly pentagonal. Its centre 
is occupied by a white pentagon, which during life was 
bordered by deep red. The remainder of its surface is 
covered with short trifid spines, amongst which are a very 
few spines of considerable length and resembling those of 
the rays. The latter measured nearly 3°5 cm. in length. 
Their colour was grey, mottled and belted with a rosy hue, 
and the spines which fringe them partook of the same 
colours. With this specimen only before me, I should be 
inclined to support Forbes in regarding its characters as 
