OR LITTLE-K^;rO^Y^- COMAXULiE. 521 



whicli are not specially small. The succeeding pinnules gradually 

 increase in length, and are also stouter with larger joints, be- 

 coming more slender again when the arm-joints decrease iu size. 

 The second and tliird joints of the pinnules borne by the third 

 and five or six following brachials have slight dorsal projections, 

 which are much more distinct on some arms than on others. 



The lowest pinnules have a tolerably well-marked comb, which 

 gradually decreases in size, and ceases after the 7th or 8th 

 joint. 



Disk naked, 30 mm. in diameter. Moutb radial, and all the 

 arms grooved. 



Perisome blackish bron^n ; the skeleton somewhat redder, with 

 a broad white stripe along the medio-dorsal line, which starts from 

 the centrodorsal, and extends outwards on to the arms. Spread 

 about 20 eentim. 



One specimen from Canton. 



HemarJcs. — I know of only one other Actinometra with the 

 same number and arrangement of the arm-divisions as in this 

 type. It was obtained by the ' Challenger ' at Banda, and is a 

 much smaller specimen, with a thin flat centrodorsal. There are 

 other species, sucb as A. alternans of the Leyden Museum, with 

 five arm-divisions, the first four of which resemble those of 

 A. grandicalyx ; and there are about half a dozen species with 

 three distichals and two palmars, as in most of the rays of the 

 latter type. But the large size of its centrodorsal distinguishes 

 it from all of these. I do not know of any other Actinometra, 

 except A. Sennetti, which has so many cirri and so large a cen- 

 trodorsal, which is nearly half as wide again as that of ^. rohista, 



5. AcTIJfOMETEA MULTIEADIATA, Linn., sp. 



1758. Asterias multiradiata, Limiceus, Systema Naturce, ed. 10, torn. ii. 

 p. 663. 



1 783. Asterias multiradiata, Refzius, Kongl. Vetenskaps Academiens Nya 

 Handlingar (Stockholm, 1/83;, torn. iii. p. '24\. 



1788. Asterias multiradiata, Linncsiis, Systema Natures, ed. 13, pars vi. 

 p. 3166. 



1805. Asterias multiradiata, Bruzelius, Dissertatio sisteiis species cog- 

 nitas Asteriarum* (Lundae, 1805). 



1816. Comatula multiradiata, Lamarck, Syst. d'Anim. sans Vert. ii. 

 p. 534. 



1834. Comatula multiradiata, De Blainville, Manuel d'Acfinologie, 

 p. 249. 



* There can, I think, be little doubt that Prof. Jeffrey Bell is right in ascri- 

 bing this dissertation to Bruzelius (Ann. & Mag. Nat. Hist., March 1882, 

 p. 166). 



