NO. 1798. CRTNOIDS COLLECTED BY THE ALBATROSS— CLARK. 543 



Thirty-nine arms, about 50 mm, long, resembling those of Pontio- 

 metra andersoni, but the brachials are slightly constricted centrally 

 and have rather prominent ends. 



On the outer arms ?« is absent; on the inner arms P^ and usually 

 also Pi are absent. 



Pj on the outer arms 6 mm. long with twelve segments, exceedingly 

 slender, the component segments not quite so long as those of the 

 next pinnule; Pg 8.5 mm. long with ten segments, resembling Pj, but 

 slightly larger and stouter and much stiff er; P3 6 mm. long, stiffer 

 than Pj, with nine segments, resembling those of Pg; P4 4.3 mm. long, 

 very slender, with eight segments, all but the first two of which are 

 greatly elongated; following pinnules gradually increasing in length, 

 the distal pinnules being 7 mm. long with twelve segments. 



P 6 on the inner arms is 9 mm. long with eleven segments, the first 

 not so long as broad, the second half again as long as broad, the third 

 three times as long as broad, and the following greatly elongated with 

 swollen articulations; the last two or three have long and very slender 

 spines upon their distal ends; the terminal segment, as usual, is short; 

 the pinnule is exceedingly slender, stiff, but not flagellate. 



Type.— C&t. No. 27492, U.S.N.M., from station 5356. 



Family COLOBOMETRID^. 

 Genus CENOMETRA. 



CENOMETRA BELLA (Hartlaub). 



Station 5401. — One specimen with twenty-three arms 120 mm. 

 long; the cirri have 36-39 segments. 



Genus COLOBOMETRA. 



COLOBOMETRA DISCOLOR A. H. Clark. 



Station 5355. — One small specimen with arms 60 mm. long. 



Station 5356. — Two specimens; one has the arms 95 mm. long and 

 cirri XIV, 30-40, 25 mm. long; the other is smaller. 



These three specimens w^ere compared directly with the type in the 

 Indian Museum, Calcutta, and no differences were found. 



Genus CYLLOMETRA. 



CYLLOMETRA MANCA (P. H. Carpenter). 



Station 5356. — Three small specimens; one has twenty-three arms 

 45 mm. long, and is entirely deep purple in color; another has fifteen 

 arms about 40 mm. long; the third has ten arms 40 mm. long and 

 cirri with 26-28 segments, 12 mm. long. 



Station 5369. — One specimen. 



