iói 



adjacent cirrus sockets; 50 — 64 (usually 57 — 58) cirrus segments; the four 

 to seven cirrus segments after the twenty-third have"a shallow rounded notch 

 in the dorsal carination so that they appear to bear two spines, a proximal 



and a distal (Laccadive Sea; 774 Metres) air i ui f era 



\y centrodorsal hemispherical or truncated conical, the ten columns of cirrus 

 sockets in close lateral apposition 

 c 1 axillaries longer than broad, their posterior processes in lateral view almost 



bisecting the IBr, (Fiji; 2430 Metres) acutiradia 



c 3 axillaries markedly broader than long 



d 1 40 — 50 cirrus segments (Kermadec Islands and Fiji; 11 34 — 



2430 Metres) .* breviradia 



d 2 62 — 66 cirrus segments (Moluccas; 1 158 Metres) perplexa 



1. Stiremctra spinicirra (P. H. Carpenter). 



P. H. Carpenter. "Challenger" Reports. Comatulae, 188S, p. 112, pi. 11, figs. 1, 2 {Antedon 



spinicirra). 

 A. H. CLARK. Smithsonian Miscellaneous Collections, vol. 61, 191 3, N" 15, p. 44 (Stiremctra 



spinicirra). 



2. Stiremetra carinifera A. H. Clark. 



A. H. CLARK. Crinoids of the Indian Ocean, 1912, p. 211 (Stiremctra carinifera). 



3. Stiremctra acutiradia (P. H. Carpenter). 



P. H. Carpenter. "Challenger" Reports. Comatulae, 1888, p. 113, pi. ir, figs. 3, 4 (Antedon 



acutiradia). 

 A. H. Clark. Smithsonian Miscellaneous Collections, vol. 61, 191 3, N" 15, p. 45 (Stiremetra 

 acutiradia). 



4. Stiremctra breviradia (P. H. Carpenter). 



VON Grakf. Buil. Mus. Comp. Zool., vol. 11, 1883, N° 7, p. 133 (Antedon radiospind). 



P. H. Carpenter. "Challenger" Reports. Comatulae, 1888, p. 1 10, pi. 3, figs. 4, 5; pi. 11, 

 fig. 5; pi. 19; pi. 20, figs. 1, 2 (Antedon breviradia); pi. 3, figs. 4, a — c (Antedon radio- 

 spind); pi. 3, fig. 5 (Antedon eversa). 



A. H. Clark. Smithsonian Miscellaneous Collections, vol. 61, 19 13, N° 15, p. 45 [Stiremctra 

 breviradia). 



5. Stiremetra perplexa (A. H. Clark). 



A. H. Cl.ARK. Zool. Anzeiger, vol. 39, 1912, N" ti/i2, p. 426 (Tlialassometra perplexa). 



Stat. 2ii. 5°4o'.7S., i20°45'.5E. Banda Sea. 1158 Metres. 1 Ex. 



The centrodorsal is small, truncated conical, the dorsal 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 XLII K 21 



