2 I I 



The centrodorsal is small, truncated hemispherical, the cirrus sockets arranged in three 

 closely crovvded alternating marginal rows; the dorsal pole is small and papillose. 



The cirri are XXIV, 13 — 16, 10 mm. long, recalling those of Antedon petasus but 

 smoother dorsally and more slender proximally; the first segment is short, the second slightly 

 longer, the third as long as broad or slightly longer than broad, the fourth slightly longer 

 than the third, the fifth and sixth the longest, twice as long as the proximal diameter; the 

 following gradually become laterally composed and, though remaining actually of the same 

 length, increase in lateral diameter and become therefore relatively shorter so that the last 

 four before the penultimate are slightly longer than broad ; in the proximal portion te cirri 

 are in lateral view slender, and rounded in cross section ; in the distal half they become 

 strongly compressed and in lateral view about twice as broad as in the proximal half; there 

 are 110 dorsal processes; the opposing spine is short, subterminal to subinedian, its base 

 involving only a small part of the dorsal surface of the segment, in height scarcely one third 

 the distal diameter of the penultimate segment, directed obliquely forward ; the terminal claw 

 is somewhat longer than the penultimate segment, stout and strongly curved. 



The radials are just visible bevond the rim of the centrodorsal ; their distal anodes 

 are separated. 



The IBrj are short about four times as broad as long in the median line, trapezoidal, 

 widely separated interradially , the sides making an angle of nearly 1 20 with those of 

 their neighbors. 



The IBr 2 are broadly pentagonal; the anterior angle is approximately 90 ; the lateral 

 edges are nearly as long as those of the IBi'j and make with them an angle of about 1 20 . 

 The synarthrial tubercles are rather prominent, and the elevation is continued somewhat anteriorly 

 onto the axillary. 



The first brachials are short, over twice as broad as longf exteriorlv, the exterior lehath 

 being rather more than twice as great as the interior; the inner edges are united basally, but 

 distally diverge at a very broadly obtuse angle. 



The second brachials are about twice as large as the first, irregularly quadrate. 



The first syzygial pair (composed of the third and fourth brachials) is nearly twice as 

 long interiorly as exteriorlv, the inequality falling chiefly in the hypozygal, twice as broad as 

 long in the median line. 



The next four brachials are slightly wedge-shaped, twice as broad as the greater length, 

 then becoming triangular, about as long as broad, and after the proximal quarter of the arm 

 wedge-shaped, about as long as broad, and somewhat longer terminally. 



Syzygies occur between the third and fourth, ninth and tenth and fourteenth and fifteenth 

 brachials, and distally at intervals of three oblique muscular articulations. 



Pj is 5.5 mm. long, composed of 15 segments of which the first is short, the second 

 longer, the third nearly as long as broad, the fourth slightly longer than broad, and the 

 seventh and following about twice as long as broad; the pinnule is small and slender, and 

 tapers evenly from the base to a slender and delicate tip; there is a slight swelling on the 

 distal edee of the second and third semnents. 



