CA R YOPH YLLIA CEA . 
TURBINOLIADJL 
THE SCARLET CRISP-CORAL. 
JJlocyatliHs arcticns. 
Specific Character. Base triangular anil flat, bounded by a sharp edge : 
calice round. 
riocyathus arcticm. Sar3, Fauna Litt. Xorv. ii. 73 ; pi. x. figs. 
18—27. 
E'abeUum MacAmlreici. J. E. Gu.vt, Proc. Zool. Soc. May, 1849 ; pi. ii. 
fig.s. 10, 11. 
GENEKAL DESCPtlPTI 0 N. 
CORALLUM. 
Corallum. Simple, free, but with trace.? of having been adherent in 
infancy ; the base with a great inferior surface, triangular, flat, often 
concave, separated from the superior surface, which is equally triangular 
and convex, by a sharp edge on each side. 
Ribs. Large, often indi.stinct, unequal ; the primaries sometimes armed 
with minute txibercles. 
Calice. Vei’y wide and deep; the edge almost circular, crisped with 
minute sinuosities. 
Plates. These arc so irregular that it is difficult to count the cycles, 
but they are at least four. Those of the first and second are more than 
twice as high as the I’est, and reach to the centre of the cup, where they 
unite, but irregularly : the others are low'er and shorter in gradation, the 
lowest projecting little w’ithin the margin. All are perfectly separ.atc 
throughout, extremely thin, sharp-edged, the surfaces set with minute 
granules often running in curved lines : the free edge of all is arched, and 
their greatest width is one-third from the summit. The primaries and 
secondaries are veiy salient, and the edge of the calice seen in 2 ’rofile 
forms eleven or twelve triangular lobes. 
Columella mA. palules wholly wanting. 
ANIMAL. 
Form. 
Column. Actinia-like, without any trace of gemmaj. 
Disk. Radii fine, distinct. 
Tentacles. About 140, in four rows, close-set, irregular; the innermost 
three or four times as large as the outermost : stem cylindro-conicah 
