SEA LILIES, STARFISHES, ETC.—CLARK. 13. 
all pinnules, much wider than high, and somewhat com- 
pressed, especially at distal margin; on Pe, Ps, P,, and P,, 
this compressed distal margin becomes a conspicuous project- 
ing keel on segments 2 and 3; beyond Pg, the pinnules 
gradually lengthen and become more slender until they may 
exceed 20 mm. in length and have 35 segments. 
Mouth radial in position, not very close to margin of disk, 
with equally developed food-grooves running to all the arms. 
There is no plating of disk or of the oral surface of arms and 
pinnules, but the membrane covering the disk is, when fully 
dried, seen to be filled with calcareous granules of very small 
size. Colour (in alcohol or dried), light fawn-colour with or 
without purple markings; perhaps in life all would show 
these purple markings more or less clearly; when well- 
developed they appear as longitudinal stripes one on each 
side of each arm, with a branch runnning up each pinnule ; 
distally the stripes fade away altogether; proximally the 
stripes on the inner side of a pair of arms unite at the tip of 
the axillary from which they arise, while those on the outer 
side broaden out and cover the radials except for a narrow 
median area ; even the centrodorsal may be purplish; the 
disk and oral surface of the arms are yellowish, quite yellow 
when dry. 
Whether this fine comatulid should be considered distinct 
from C. solaris is, of course, a matter of opinion. The 
locality is some four hundred miles further south than C. 
solaris has been recorded and the depth is considerably greater 
than any published for that species. In view of these facts, 
it seems to me that the absence of cirri and reduction of the 
centrodorsal plate, combined with the very different terminal 
combs of the oral pinnules and the absence of plating on disk 
and oral surface of the arm bases, warrant the recognition 
of the form by a different name. In C. solaris the terminal 
comb of P, consists of 35-40 segments and occupies nearly 
half the pinnule ; the shape of the individual teeth is, more- 
over, very different from what is seen in C. cratera. The 
comatulid taken by the ‘“‘ Alert ’’ at Port Molle, Queensland, 
referred by Carpenter to C. solaris, but specially discussed 
because of the absence of cirri and the unplated disk, is very 
possibly a specimen of C. cratera. 
Loc.—Kight miles east of Sandon Blufts, New South Wales, 
35-40 fathoms. Fourteen specimens. 
