i6i 
adjacent cirrus sockets; 50 — 64 (usually 57 — 58) cirrus sej^ments; the four 
to seven cirrus segments after the twenty-third have a shallow rounded notch 
in the dorsal carination so that they apjjear to bear two spines, a proximal 
and a distal (Laccadive Sea; 774 Metres) carinifera 
b- centrodorsal hemispherical or truncated conical, the ten columns of cirrus 
sockets in close lateral apposition 
c^ axillaries longer than broad, their posterior processes in lateral view almost 
bisecting the IBr, (Fiji; 2430 Metres) acidiradia 
c" axillaries markedly broader than long 
d' 40 — 50 cirrus segments (K e r m a d e c Islands and !■ i j i ; 1134 — 
2430 Metres) breviradia 
d" 62 — 66 cirrus segments (Moluccas; 1158 Metres) perplexa 
1. Stiremetra spinicirra (P. H. Carpenter). 
P. H. Carpenter. •'Challenger" Reports. Comatulae, 1888, p. 112, pi. 11, figs, i, 2 (Antedon 
spinicirra). 
A. H. Cl.\R1v. Smithsonian Miscellaneous Collections, vol. 61, 191 3, N" 15, p. 44 (Stiremetra 
spinicirra). 
2. Stiremetra carinifera A. H. Clark. 
A. H. Cl.\RK. Crinoids of the Indian Ocean, 1912, p. 211 \Stiremetra carinifera). 
3. Stiremetra actttiradia (P. H. Carpenter). 
P. H. CARPENTER. ■'Challenger" Reports. Comatulae, iSSS, p. 113, pi. 11, figs. 3, 4 {Antedon 
acHtiradia). 
A. H. Cl.\RK. Smithsonian Miscellaneous Collections, vol. 61, 191 3, N" 15, p. 45 (Stiremetra 
acutiradia). 
4. Stiremetra breviradia (P. H. Carpenter). 
VON Gr.-vkf. Bull. Mus. Comp. Zool., vol. 11, 1883, N" 7, p. 133 (Antedon radiospina). 
P. H. C.VRPENTER. "Challenger" Reports. Comatulae, 1888, p. no, pi. 3, figs. 4, 5; pi. n, 
fig. 5; pi. 19; pi. 20, figs. I, 2 (Antedon breviradia); pi. 3, figs. 4, a — c (Antedon radio- 
spina) ; pi. 3, fig. 5 (^-Intedon eversa). 
A. H. Cl.-\RK. Smithsonian Miscellaneous Collections, vol. 61, 1913, N" 15, p. 45 (Stiremetra 
breviradia). 
5. Stiremetra perplexa (A. H. Clark). 
A. n. Cl..\RK. Zool. Anzeiger, vol. 39, 1912, N" 11 12, p. 426 (Thalassometra perplexa). 
Stat. 2(1. 5°40.7S., 120^45 .5 E. Handa Sea. 1158 Metres, i Ex. 
The centrodorsal is small, truncated conical, the dor.sal pole entirely covered with 
elongate tubercles or papillae; the cirrus sockets are arranged in ten closely crowded columns 
of two or three (usually two) each. 
SIBOGA-EXPEDITIE XLIl*. "' 
