1 I 



small pits, the remnants of cirrus sockets, on its margin. The colour is yellowish white, the 

 pinnules being yellovv green. 



Except for the smaller size and the slightly less developed centrodorsal this specimen 

 agrees well with. the type, with which it was directly compared. 



2. Capillaster gracilicirra A. H. Clark. 



A. H. Clark. Proc. Biol. Soc. Washington, vol. 25, 1912, p. 18. 



Stat. 318. 6°36'.sS., II4°55'.5E. 88 Metres. 3 Ex. 

 Stat. 320. 6°5'S., ii4°7'E. 82 Metres. 1 Ex. 



One of the specimens from Stat. 31S is a magnificent example of the species; it has 

 110 arms 140 mm. long; no fully developed cirri are preserved, but from the young cirri 

 present it appears undoubtedly to be referable to this form instead of to C. sentosa which, 

 except for the cirri, it exactly resembles. The other two are smaller, with 33 and 35 arms 

 and cirri 35 mm. long composed of 28 — 36 segments. They seem to belong to C. gracilicirra 

 rather than to C. tenuicirra, though they have not as yet acquired all of the characters of 

 that type. 



The single individual from Stat. 320 has been chosen as the type of the species; the 

 cirri are XVII, 27 — 35 (usually nearer the latter), 33 mm. long; the longest proximal cirrus 

 segments are tvvice as long as broad, slightly constricted centrally with swollen ends ; the 

 shorter distal segments are about as long as broad ; the tenth or eleventh is a transition seg- 

 ment ; the eleventh or twelfth has several sharp spines on the distal dorsal border : in the 

 following two or three segments the central spine rapidly increases in size, becoming a long 

 subterminal dorsal spine, flanked at the base by a smaller one on either side. The other cha- 

 racters are as in C. sentosa. There are 51 arms 100 mm. long. 



The smaller specimens from Stat. 318 are peculiar in having on the outer cirrus seg- 

 ments two dorsal spines, a proximal and a distal. 



3. Capillaster sentosa (P. H. Carpenter). 



Lamarck. Hist. nat. des animaux sans vertèbres, vol. 2, 18 16, p. 533 (Comatula multira- 



diata, part). 

 J. MULLER. Abhandl. d. k. preuss. Akad. d. Wiss., Berlin, 1847 (1849), p. 261 (Comatula 



[Alecto] multiradiata, part). 

 P. H. Cartenter. Journ. Linn. Soc. (Zool.), vol. 16, 1882, p. 521 (Actinometra multiradiata, 



part). 

 P. H. Carpexter. "Challenger" Reports. Comatulae, 1888, p. 325, pi. 66, figs. 4 — 6 (Acti- 



110 metra sentosa). 

 Iv iehler. Mem. soc. zool. France, vol. 8, 1895, p. 421 [Actinometra sentosa). 

 Bell. in Gardiner, Fauna and Geography of the Maldive and Laccadive Archipelagoes, vol. 



1, 1902, part 3, p. 225 {Actinometra sentosa). 



A. H. Clark. Smithsonian Miscellaneous Collections (yuarterly Issue), vol. 52, 1908, part 



2, p. 201 (Comaster sentosa). 



A. H. Clark. Proc. U. S. National Museum, vol. 36, 1909, p. 391 (Comaster sentosa). 

 A. H. Clark. Vidensk. Medd. fra den naturhist. Forcning i K0benhavn, 1909, p. 133. 

 A. H. Clark. Proc. U. S. National Museum, vol. 39, 191 1, p. 530. 



