34 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



The lateral processes on the ossicles of the division series are broad 

 with truncated or roundedly incised outer margins. 



The twenty-six arms are about no mm. long. 



P 2 is very stout and very strongly curved with from eleven to 

 fourteen (usually twelve) segments, lfrbst of which are about as 

 long as broad ; on the distal side the distal ends are strongly everted 

 and serrate, this being well marked on the second ; there is a very 

 slight straight edged blunt carination of the first three segments of 

 the earlier pinnules, which is quite different in appearance from the 

 high sharp convex carination characteristic of C. emendatrix. 



Both of the specimens are alike in color, white and purple in bands 

 about one-quarter of an inch in width, the cirri brown. 



Genus CYLLOMETRA A. H. Clark 



CYLLOMETRA MANCA (P. H. Carpenter) 



Antedon manca 1888. P. H. Carpenter, "Challenger" Report, Comatulae, 

 p. 226 (1). 



i. "Challenger" Station No. 192. — The longest cirrus segments 

 are scarcely longer than broad ; the dorsal spines on the outer cirrus 

 segments are not nearly so broad as those of C. disciformis, but 

 resemble rather those of C. albopnrpurea. 



CYLLOMETRA ALBOPURPUREA A. H. Clark 



i. Inland Sea, Japan. — Three fine specimens with fourteen, fif- 

 teen and nineteen arms 70 mm. to 80 mm. long. 



CYLLOMETRA DISCIFORMIS (P. H. Carpenter) 



Antedon disciformis 1888. P. H. Carpenter, "Challenger" Report, Co- 

 matulae, p. 228 (1). 



i. Cebu Reefs. — Four specimens; the dorsal spines on the outer 

 cirrus segments are long and sharp ; the longest cirrus segments are 

 nearly twice as long as broad. 



Genus DECAMETRA A. H. Clark 

 DECAMETRA TIGRINA (A. H. Clark) 



i. Toba Harbor, Japan.-^-One specimen. 



2. Japan. — Two specimens, one large and one small. 



DECAMETRA INFORMIS (P. H. Carpenter) 



Antedon informis 1888. P. H. Carpenter, "Challenger" Report, Comatute, 

 p. 205 (1). 



I. "Challenger" Station No. 208. — One specimen, well figured 

 by Carpenter. 



