segments of which the first four are short, the following gradually incressing in length to the 

 ninth which, with the following, is about half again ;is long as broad; the distal ventral edge 

 Ejment projects slightly above the base of the eeding segment; the last six <>r 



seven segments taper very graduall) so that the cirri, which troughoul most of their length 

 .in- about 2 mm. broad, become on the penultimate segment 1.2 mm. broad; the opposing 

 spine is repi I bj .1 very slight terminal tubercle; the penultimate and the distal third of 



the antepenultimate segment sometimes the penultimate and antepenultimate and the distal 

 third of the preceding are highly polished in contrast to the dull surface of the preceding ossicles. 

 The centrodorsal is large and thick, truncated conical, 8 mm. broad at the base and 

 mm. across the stellate dorsal pole, 6 mm. high; the cirrus sóckets are arranged in ten 

 closely crowded columns of two each, with one in the centre of a radial depression and one 

 on an interradial ridge; on the proximal edge of the centrodorsal there are rounded interradial 

 ridges which are produced distally in a sharp angle between the proximal portion of the 

 •mal cirrus sockets, which meet below them; proximally these fork, becoming prominent 

 rather high tubercular processes on either side of the end of the basal ray, which they much 

 nble, the surface of the stellate dorsal pole is slightly concave; in the centre, with more 

 or less marked radial and interradial grooves; the énds of the rays of the star are not inter- 

 radial. but are somewhat twisted clockwise so that they come under the left colum of cirrus 

 sockets. in each radial area. 



The ends of the basal rays are visible as prominent dorsoventrally elongate tubercles 

 in the angles of the calyx. 



The edge of the radials is just visible bevond the centrodorsal. 



The I Br, are verv short, with parallel sides, distally incised by a rounded posterior 

 projection from the axfllary, laterally curving upward and meeting over the ends of the basal 

 rays; the distal inner angles are somewhat cut away; the median third of the dorsal surface 

 is swollen, forming a more or less evident laterally elongated large low rounded tubercle; 

 the proximal edge is slightly produced, especially in the lateral thirds; the distal outer angles 

 slightly swollen. 



The IBr axillaries) are rhombic, twice as broad as long; the edgi lightlj raised; 



the dorsal surf .cept in the lateral thirds, is slightly raised. most prominently in the 



median line just within the proximal border and on tin median part of the two distal faces, 

 just within the distal borders; the lateral angles are more or less irregular, with a greater or 

 r tubercular modification; the lateral edges are more or less cut away, forming, with a 

 similar truncation of the distal angles of the Il'.r,. a prominent water pore. 



There are fourteen arms, all in process of regeneration ; the lllir, series are all 2, 



mbling the IB and with the same water pores, but with die outer edges more 



ilarlv tuberculous; the first two brachials are similar to the elements of the tlixi^i < >n 



tnd have water pores interiorly and exteriorl) between them; the remaining brachials 



jmooth and unmodified surface. as figured bj Carpenter; but this is possibly due to 



: vet they an- incompletely regenerated. 



ipecimen is essentially similar; there an en arms. all of the [IBr series 



