736 



692^" " THETIS " SCIENTIFIC RESULTS. 



are not given I have, liowever, appended tlie name of the student 

 who first proposed the group name as a guide to anyone wlio may 

 be interested in looking up the mutter further. 



Phylum ECHINODERMATA, Klein. 

 Subphyliun Ecliinodermata Heteroradiata, A. H. Clark. 



Class P E 1. M A T O Z A, Lenckart. 



Su))class CRINOIOEA, MilUer. 



Order COMA T U L I D A, A. 11. Clark. 



Suborder OLIGOPHREATA, A. H. Clark. 



Family C O M A S T E R 1 D ^, A. H. Clark. 



Subfamily CAPILLASTERIN^, A. H. Clark. 



Genus C A P I L L A S T E R, A. H. Clark. 



Capilldster, 1909, A. H, Clark, Proc. Biol. Soc. Washington, 

 vol. 22, p. 87 (Actinometra sentosa, P. H. Carpenter, 1888). 



Differential Characters. — The genus Capillaster is a very easy 

 one to recognize, for it is the only Comatulid genus in which a 

 pinnule is borne on thetirstl)rachial of the free arm ; if III Br and 

 subsequent series are present, these are always composed of three 

 ossicles, the two outer united l)y syzygy, and the first bearing a 

 pinnule. 



Range. — Cajnllastei' ranges from South-eastern Africa to 

 Ceylon, and thence eastward and north-eastward to Northern 

 Australia, the Philippine Islands, the Carolines, and Southern 

 Japan. 



A closely allied genus, N'emaster, represents it in the Caribbean 

 Sea and on the coast of Brazil. 



CAPILLASTER MULTIRADIATA (Linnceus). 



Stella chinensis perlegens, 1711, Petiver, Gazophylacium, pi. 4, 

 fig. 6 [China). 



Asterias pectinata (part), 1758, Linnseus, Syst. Nat., ed. x., p, 663 

 (reference to Petiver, but not other references or the typ» 

 specimen). 



Asterias multiradiata, 1758, Linnseus, torn, cit., p. 663 (type speci- 

 men at Lund., but not references cited) (Indian Ocean). 



