A. H. CLARK : THE CRINOIDS OF THE INDIAN OCEAN. 183 



N . multicolor \ first brachial wedge-shaped, about as long exteriorly as broad 

 distally, interiorly united for almost the entire length; second brachial similar, 

 but swollen exteriorly to form an attachment for the greatly enlarged lower 

 segments of P, ; third and fourth (syzygial pair) slightly longer than broad to half 

 again as long as broad , slightly constricted centrally ; next three or four brachials 

 wedge-shaped, progressively more and more oblique, somewhat longer than broad, 

 then becoming triangular, as long as broad, the long exterior side somewhat 

 convex, and wedge-shaped terminally ; at about the seventh brachial the distal 

 edge becomes projecting and overlapping and armed with fine spines, this projec- 

 tion ending, on the side toward the longer lateral edge of the segment, abruptly 

 in a more or less pronounced sharp point or spine, so that the arms appear to 

 have dorsally a double row of more or less marked short overlapping spines; 

 distally these spines move gradually nearer and nearer the median line, at the 

 same time becoming rounded carinate, and gradually die away distally. Syzygies 

 occur between the third and fourth brachials, again between the tenth and 

 eleventh to the twelfth and thirteenth, and distally at intervals of three (more 

 rarely two or four) oblique muscular articulations. 



Pi 10 mm. long, very slender and weak, with thirty-five segments, the first 

 proportionately greatly enlarged, twice as broad as long, with a strong carinate 

 process, the second much shorter, strongly trapezoidal, the remainder very small 

 and squjirish; P.;, somewhat longer, but stiff and spine-like with elongated 

 segments like ?,; P.^ 20 mm. long, not especially stout, but very stiff, with about 

 twenty segments, the first about twice as broad as long, slightly carinate, the 

 second trapezoidal, about as broad distally as the proximal length, the third half 

 again as long as broad, the fourth over twice as long as broad, the remainder two 

 and one half to three times as long as broad and even longer distally; the 

 segments have slightly projecting and spinous distal ends, this character increas- 

 ing in intensity distally ; P^ similar to P,^ and of the same length : the following 

 pinnules decrease to 12 mm. on P,, then become somewhat stouter, and more 

 slender again distally, though remaining of the same length ; the segments in the 

 distal portion of all the pinnules have prominent, somewhat expanded, spinous 

 distal ends. The pinnules on the outer arms of each ray appear to be considerably 

 longer than those on the inner arms. 



The colour in spirits is white, thickly blotched on the rays, arms, and 

 pinnules with purple, which colour also forms on the rays and division series a 

 more or less well defined dorsolateral line. 



Locality. — Andaman Islands. — One specimen. 



NEOMETRA MULTICOLOR. 

 A ntedon discoid ea (purt) 1906. McClendon, Bull. American Mus. . vol. 22, ])p, 



120, 125, 126 (not of Carpenter). 

 Anteclon rmdticolor 1907. A. H. Clark. Proc. U. S. Nat. Mus.. vol. 33, f). i:jo. 

 Antedon fhetis 1907. A. H. Clark, Proc. U. S. Nat. Mus., vol. 33, p. 1.">1. 



