i8o 
seornents of which the first four are short, the following gradually incressing in length to the 
ninth which, with the following, is about half again as long as broad; the distal ventral edge 
of each segment projects slightly above the base of the succeeding segment ; the last six or 
seven segments taper very gradually so that the cirri, which troughout most of their length 
are about 2 mm. broad, become on the penultimate segment 1.2 mm. broad; the opposing 
spine is represented by a 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 
3.6 mm. across the stellate dorsal pole, 6 mm. high ; the cirrus sockets 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 
proximal 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 
resemble, the surface of the stellate dorsal pole is slightly concave in the centre, with more 
or less marked radial and interradial grooves; the ends 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 beyond the centrodorsal. 
The IBr^ are very short, with parallel sides, distally incised by a rounded posterior 
projection from the axillary, 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 
are slightlj- swollen. 
The IBr^ (axillaries) are rhombic, twice as broad as long; the edges are slightly raised; 
the dorsal surface, except in the lateral thirds, is slighth' raised, most prominently in the 
median line just within the proximal border and on the median part of the two distal faces, 
just within the distal borders; the lateral angles are more or less irregular, with a greater or 
lesser tubercular modification; the lateral edges are more or less cut away, forming, with a 
similar truncation of the distal angles of the IBrj, a prominent water pore. 
There are fourteen arms, all in process of regeneration; the IIBr^ series are all 2, 
resembling the I Br series and with the same water pores, but with the outer edges more 
irregularly tuberculous; the first two brachials are similar to the elements of the division 
series, and have water pores interiorly and exteriorly between them; the remaining brachials 
have a smooth and unmodified surface, as figured by Carpenter; but this is possibly due to 
the fact that as yet they are incompletely regenerated. 
The other specimen is essentially similar; there are sixteen arms, all of the IIBr series 
