2 I 
cirrus segments are very sliglitl\- less elongate than in tiie type specimen, but I can find no 
other differences. 
3. Coinissia I it tor a lis A. H. Clark. 
A. H. Clark. I'roc. Biol. Soc. \\'ashiny;ton, \ol. 25, 1912, p. iS. 
Stat. 129. Anchorage oft' Kawio and Kaniboling Islands, Karkaralong group. Reef. 2 Ex. 
The centrodorsal is very thin, discoidal, the broad dorsal pole flat, 2.5 mm. to 3.0 
mm. in diameter ; the cirrus sockets are arranged in a single crowded and more or less irre- 
gular marginal row. 
The cirri are XXI — XXII, 16, 10 mm. to 11 mm. long; the first segment is short, 
the second about twice as broad as long, the third al)out half again as long as the pro.ximal 
diameter, the fourth about twice as long as the pro.ximal diameter or slightly longer, the fifth 
about as long as the fourth or slightly shorter ; the following rapidly decrease in length, beco- 
ming after the eighth or ninth slightly broader than long; the fifth and following have a slight 
subterminal dorsal tubercle which gradually moves anteriorly, becoming median after the ninth; 
the opposing s])ine is very small, subterminal. The earlier longer segments are slightly con- 
stricted centrally with prominent ends ; the distal shorter segments are laterally compressed 
and therefore appear broad. 
The ends of the basal rays are visible as small tubercles in the angles of the calyx ; 
very narrow subradial clefts are present; the radials arc concealed; the IBrj are concealed 
except in the angles of the caly.x where their lateral edges diverge at an angle of 90°; the 
axillaries are almost triangular, twice as broad as long; the lateral edges are very short, ma- 
king an obtuse anele with those of the IBr,. The division series and arm bases, which are 
quite without synarthrial or articular tubercles, extend outward at right angles to the dorso- 
ventral a.xis ; this, with the broad flat centrodorsal carrying a single row of cirri, gives the 
animal a singularly flattened habitus in contrast to peregrina and liitkeni in which the division 
series and arm bases make a .slight angle with the plane perpendicular to the dorsoventral 
axis. In this respect C. hispida is intermediate between littoralis^ and peregrina and lYdkctti. 
The ten arms are about 60 mm. long, and slender. 
Pj is considerably longer and stouter than the succeeding pinnules, and bears a comb 
with 9 — II teeth; P., and the following pinnules are without combs. 
Seven pentacrinoid larvae were attached to the cirri of these two specimens. 
4. Comissia spinosissima A. H. Clark. 
A. H. Clark. Proc. Biol. Soc. Washington, vol. 25, 191 2, p. 20. 
Stat. 305. Mid-channel in Solor Strait, oft" Kampong Menanga. 113 Metres. 2 Ex. 
The centrodorsal is large, thin discoidal, the dorsal pole flat, regularly pentagonal, 2 
mm. in diameter. 
The cirri are XXX, 10 — 11, S mm. long, small and slender, with the distal edges of 
