A. H. CLARK: THE CRINOIDS OF THIi INDIAN OUKAN. <) 1 



becoming squarish on the fifth and on the eighth or ninth somewhat longer than 

 broad, then gradually decreasing in length again so that the last ten are twice as 

 broad as long; the earlier of these ten are bluntly carinate, this carination on the 

 last three becoming a low sharp median tubercle. 



The rays are concealed as far as the axillaries; the axillaries are free 

 laterally ; the division series are broad, nearly in lateral contact. 



The second to the fifth pinnule segments have more or less developed dorsal 

 processes, suggesting the condition seen in Comanthina belli; the terminal comb 

 has fourteen teeth which are low, well separated, and have a more or less serrate 

 boi'der. 



COMANTHERIA IMBRICATA. 



Comaster imbrkata 1908. A. H. Clark, Proc. U. S. Nat. Mus., vol. 36, p. 306. 



Habitat.— Southern Japan; off the Goto Islands; Futschau (Province of 

 Fokien), China. 



Depth. — Littoral, and down to 50 fathoms. 



Subgenus Comanthina. 

 Comanthina 1909. A. H. Clark, Vidensk. Medd. fra den naturhist. Forening i 

 Kobenhavn, 1909, p. 142 (Actinomerta nobilis P. H. Carpenter, 188s 

 (=Actinometra schlegelii P. H. Carpenter, 1881) ). 



COMANTHINA BELLI. 



Actinometra belli 1888. P. H. Carpenter, "Challenger" Reports, vol. 26, 



Zoology, p. 334, pi. Ixiv, figs. 1, 2. 

 Actinometra multifida 1894. Bell, P. Z. S., 1894, p. 394. 

 Actinometra nobilis 1894. Bell, P. Z. S., 1894, p. 394. 



Habitat .—Prince of Wales Channel; Thursday Island; Torres Straits; 

 northwestern Australia; Mermaidsk, Port Hedland and Shark Bay, western 

 Australia. 



Depth. — Littoral, and down to 65 fathoms. 



Remarks.— Professor Bell's records of Comanthina nobilis and of Comaster 

 multifida in western and northwestern Australia were based upon specimens of 

 this species wrongly identified, as I discovered during my visit to the British 

 Museum. 



COMANTHINA SCHLEGELII. 



Actinometra schlegelii 1881. P. H. Carpenter, Notes from the Leyden Museum. 



vol. 3, p. 210. 

 Actinometra multifida (part) 1884. Bell, Report Zool. Coll. H.M.S. "Alert," 



p. 169. 

 Actinometra duplex 1888. P. H. Carpenter, "Challenger" Reports, vol. 26, 



Zoology, p. 335, pi. xliv, fig. 3. 



