206 
I. Compsovietra longicirra A. H. Clark. 
■ A. H. Clark. Notes from the Leyden Museum, vol. 34, 19 12, p. 134 (Coinpsotnetra longi- 
cirra); p. 135 [Compsometra gracilipes). 
Stat. 50. Bay of Badjo, western coast of Flores. Reef. 14 Ex. 
Stat. 167. 2''35'.5 S., i3i°26'.2E. Ceram Sea. 95 Metres. 6 Ex. 
The centrodorsal is flattened hemispherical, the dorsal pole more or less thickly covered 
with rounded tubercles, which become smaller centrally ; the cirrus sockets are arranged in one 
or two irregular crowded rows. 
The cirri are X — XX, 12 — 16, 7 mm. to 11 mm. long, extremely slender, very slightly 
curved, tapering gradually to a sharp point in the distal fourth, composed of extremely long 
segments with greatly swollen articulations, especially in the proximal portion ; the first segment 
is very short, the second nearly as long as broad, the third from two and one half to three 
times as long as the diameter of the expanded distal end, and the following about four times 
as long as the diameter of the greatly expanded distal ends, which are about twice as broad 
in lateral view as the central portion of the segments; beyond the fifth-eight the expansion 
of the distal ends of the segments gradually decreases, and the lateral diameter of the segments 
after the tenth gradually decreases to the sharp tip; there is no opposing spine; the terminal 
claw is very slender, and straight. 
The distal edge of the radials is even with the rim of the centrodorsal, and sometimes 
bears a few tubercles toward the interradial angles of the calyx ; the distal interradial angles 
are slightly separated. 
The IBrj are very short, about four times as broad as long, twice as long laterally 
as in the median line; the lateral edges are parallel, or converge slightly; they make an 
angle of about 90° with the lateral edges of the adjacent IBr, , and are not in contact basally; 
the proximal and distal edges are broadly thickened, the pro.ximal more broadly than the 
distal, and very finely spinous; as a result of this thickening of the proximal and distal edges 
the lateral borders have a rounded notch. 
The IBr„ (axillaries) are rhombic, all the sides moderately concave, with truncated lateral 
angles, from half again to twice as broad as long; the lateral angles are slightly produced 
outward and downward in rounded lateroposterior processes; the truncated ends of the lateral 
angles are about as long as the median length of the IBr, ; all the borders are slightly everted 
and very finely spinous. 
The 10 arms are from 20 mm. to 40 mm. long, and exceedingly slender; the brachials 
are elongate, .slightly constricted centrally, this condition increasing distally, and practically 
smooth, with no production of the distal edges. Syzygies occur between the third and fourth 
brachials, again between the ninth and tenth and fourteenth and fifteenth, and distally at intervals 
of three oblique muscular articulations. 
P, is from 3.5 mm. to 4 mm. long, and tapers evenly from the base to the tip; it is 
composed of 9 — 11 segments of which the first is twice as broad as long, the second half 
again as long as broad, the third twice as long as broad, and the remainder from two and 
