194 
On one arm Pj and ?„, as well as the pinnules following-, bear gonads, a condition 
never before observed. 
2. Strotomeira pai'vipinna (P. H. Carpenter). 
P. H. Carpenter. "Challenger" Reports. Comatulae, iSSS, p. 127, pi. 15, fig. 9 [Antedon 
parvipinna). 
A. H. Cl.-^RK. Smithsonian Miscellaneous Collections, vol. 61, 1913, N" 15, p. 50 [Strotometra 
parvipinna). 
Stat. 254. 5°4o' S., 132° 26' E. Arafura Sea. 310 Metres, i Ex. 
Stat. 297. io°39'S., I23°40 E. Timor .Sea. 520 Metres. 6 Ex. 
The largest specimen from Stat. 297 has the arms 75 mm. long, and is relatively large 
and stout; the .surface of the dorsal pole of the centrodorsal and ot the radials and IBr^ is 
very thickly covered with irregular tubercles, so that it appears more or less sponge-like; the 
borders of the ossicles of the I Br series and of the first two brachials are thickened and 
sli<yhtly everted; the I Br., (axillary) has a rather high median keel; the following ossicles have 
a prominent rounded median tubercle which becomes a low broad carinate process on the 
triangular brachials; the cirri are XVI, 12 — 13; the longest proximal segments (the third and 
fourth) are slightly longer than broad ; the distal segments are slightly broader than long ; 
Pj has 17 — 19 segments. 
Another, similar to the preceding but with the arms only 60 mm. long, has the modi- 
fication of the surface of the radials and IBr^ not so strongly marked; the cirri are X, 12. 
A third is similar to the last, but the modification of the surface of the radials is 
scarcely noticeable; the cirri are X, 11 — 12; all of the others but one resemble this. 
A very interesting individual with the arms 65 mm. long has the IBr, with a high 
rounded median keel, and everted lateral borders; on either side of the median keel there are 
from two to five high rounded tubercles; the type of ornamentation as a whole strongly 
suggests the condition found in Glyptonictra htberosa; the IBr axillary has the borders slightly 
everted, and the distal borders margined with confluent tubercles which rapidl}' diminish in 
width from the median line to the outer angles. 
3. Strotometra hepburiiiana (A. H. Clark). 
A. H. Cl.vrk. Proc. U. S. National Museum, vol. t^i, 1907, p. 139 [Antedon lapburniana). 
- — • — Vidensk. Medd. fra den naturhist. Forening i Kobenhavn, 1909, p. 187 [Strotometra 
hepburniana). 
4. Strotometra priafnvs A. H. Clark. 
A. H. Cl.\RK. Proc. Biol. Soc. Washington, vol. 25, 1912, p. Si. 
Stat. 266. 5°56'.5S., I32°47'.7E. Arafura Sea. 595 Metres. 39 Ex. 
Stat. 297. io°39'S., i23°4o'E. Timor Sea. 520 Metres. 
The centrodorsal is very low, low hemispherical or almost discoidal, from 1.5 mm. to 
