86 ASTEROIDEA. 
Cribella rosea, Forbes, Brit. Starf. (1840) p. 106; Thompson, Faun. 
Trel. iv. (1856) p. 489; Maitland, Anim, Belg. sept. (1851) p. 90. 
Asteracanthion roseus, Dib. § Kor. Vet.-Ak. Hdlg. 1844 (1846), 
p- 241; Perr. Ann. Sci. Nat. xii. (1869) p. 229, pl. xvii. fig. 7. 
Henricia rosea, Gray, Brit. Rad. (1848) p. 20. 
Asteracanthion roseus (pars), Jf. Tr. Syst. Ast. (1842) p. 17. 
Stichaster roseus, Sars, Norg. Ech. (1861) p. 86; Norm. Ann. § 
Mag. xv. (1865) p. 125; Hodge, Tr. Nat. Hist. Soc. North. § 
Durh, iv. (1872) p. 186; Perr. Arch. Zool. expér. iv. (1875) p. 847 ; 
Dan. § Kor. Norsk. Nordh, Ast. (1885) p. 30. 
R=7r. 
Rays long, tapering gradually, rather sharply marked off from 
the disk, blunt at tip, with a prominent terminal plate. Ambulacral 
groove pretty wide, with a double or triple row of blunt, closely 
packed, rather irregularly disposed spines, beyond which are two or 
three rows of smaller, almost tubercle-like spines. The ossicles of 
both surfaces are arranged in very regular rows, among which 
that which extends along the middle line of the back 1s conspicuous. 
The ossicles are irregularly oval in form and the tubercles with 
which they are closely covered are squarish and flat-headed ; there 
are seven or eight rows on either side the middle line, and the 
ossicles in those at the side of and on the ventral surface of each 
arm are larger than those on the dorsal surface. The definiteness 
of the arrangement of the rows of ossicles is less marked and the 
tuberculation dees not form so close a pavement in specimens from 
55 or 200 fathoms; in the Croulin specimen the tubercles are 
almost spines. ‘The papular spaces are distinct but never large. 
The disk is small, the madreporite on its side is prominent and 
surrounded by a circlet of flat tubercles. 
Colour in life, orange or reddish; dried or in spirit, pale yellow. 
Breadth of arm 
R. ?. at base. 
I, 19 18 
92 Ie 1S 
Distribution. Coasts of Norway, Holland, British Isles. To 
200 fms. 
a. Croulin Id., Skye, 50 fms. Ri. M‘Andrew, Esq. 
6. Ayrshire. Prof. E. Forbes. 
ce. Kilbrennan Sound, 10-20 fms. J. Murray, sq. 
d. 30 miles off Achill Head, 144 fms. R. Irish Acad. 
e, f. S.W. coast of Iveland, 55 fms, 
g. 50° 50' 15” N., 11° 12’ 30" W., 200 fms. G. C. Bourne, Esq. 
h, 8.W. Ireland. Dr. Grenfell. 
7. Port Erin, IL. of Man, Easter 1889. 
4j. Plymouth. 
k. Aberdeen. G. Sim, Esq. 
lp. — ? ‘Porcupine ’ Exp. 
