The radials are short in the median, line, but extend upward in the angles of the calyx 

 where they form a broad process with parallel sides and a straight or convex distal horder 

 which entirely and widely separates the bases of th<- IBr,. In width this anterior process from 

 the radials is equal to about one half of the length of the ventrolateral edge of the I Br,. 



The IBr, are oblong, nearly nr ipiite three times .is broad as long, with the ventro- 

 lateral edge produced int < > a thin flange-like border with a smooth outer edge which is about 

 twice .is wielt- proximally as distally; the proximal end is even with the edge of the interradial 

 process. The IBr (axillaries are broadly pentagonal, not quite twice as broad as long; the 

 dorsal surface is slightly excavated so that the distal borders appear prominent; the thin 

 produced ventrolateral edge of the IBr, is continued on to the IBr s where, viewed ventrally it 

 is seen to have its sides parallel, while viewed dorsally it disappears under the lateral angles 

 of the axillary. The 11 Br series are 2. At each synarthry there is a high and prominent tubercle 

 which in height is approximately equal to the longer (longitudinal) diameter of its base. These 

 synarthrial tubercles recall those of Perometra diomedeae, hut they are proportionately narrower 

 and more slender than those of that species, though nearly as high. The IBr, sometimes has 

 a small rounded tuhercle just anterior to the proximal half of the synarthrial tubercle; the IBr 

 axillary has a more or less prominent narrow rounded median carination running anteriorly 

 from the base of the distal half of the synarthrial tubercle, often terminating, approximately mi 

 a level with the lateral angles, in a prominent tubercle; these are repeated on the ossicles of 

 the I IBr series and on the first two brachials. 



The arms are 16 or 17 in number in fully grown examples, about 70 mm. long. The 

 brachials are essentially like those of Neometra multicolor, but each bears a prominent low 

 narrow rounded carination which ends distally in a more or less spinous production of the 

 distal edge; this carination lies on the opposite side of succeeding brachials, especially in the 

 proximal portion of the arm. 



P, is 10 mm. long, slender and weak, composed of 28 — 33 segments of which the first 

 two are enormously enlarged and the remainder very small and about as long as broad; the 

 first segment is irregularly rounded wedge-shaped, about two and one half times as broad as 

 long, about as broad as the lateral diameter of the brachial which bears it; the distal portion 

 of the segment consists of a broad rounded carinate process about as high as the maximum 

 diameter of the ossicle ; the second segment is about three lifths as broad as the first, and 

 narrow, between tour and five times as broad as the maximum (distal) length; the distal border 

 is strongly rounded; the third segment is about as long as broad, and occupies the median 

 thircl of the distal margin of the second. 1', is long, stift" and spine-like, though rather slender, 

 1 3 mm. to 15 mm. long, with iS — 22 segments of which the first is much enlarged with a 

 high evenly rounded distal process, the second is smaller, trapezoidal, about twice as broad as 

 long with a carinate process having a straight instead of a rounded distal border, the third is 

 slightly longer than broad with a small more or less irregular carinate process usually occupying 

 only a portion of the distal edge; the first segment is not so large as the first segment of 1',. 

 and the second is longer than the corresponding segment of 1' |; the third segment is about 

 half as broad as the second; after th<- third the seerments increase in length so that the sixth 



