l62 



DISCOVERY REPORTS 



lower brachials are shown in Fig. 9 b. The long second brachials incise the first and form 

 slight shoulders with them. 



Syzygies occur between brachials 3 + 4, 9 + 10 or exceptionally 8+9, 13 + 14 or 

 14 + 15, and thereafter at intervals of two to four, usually three, muscular articulations. 



Fig. 9. Kcmpometra grisea. rt, cirrus. 6, proximal parts of two rays, c, forty-third to forty-seventh brachials. 

 d, P3 from the under side showing the ovary containing large eggs and the brood-pouch containing a penta- 

 crinoid larva, e, side-plates and spicules of distal pinnules, a-b, X13. c-d, x 15. e, x 80. 



The two brachials following the first syzygial pair are rectangular, about twice as 

 broad as long. Those for some distance beyond are somewhat wedge-shaped and about 

 as long as broad. The distal brachials are elongated and slender, rectangular, with the 

 articulations, muscular and syzygial, slightly swollen (Fig. 9 c). The distal edges of the 

 brachials are everted and produced into frills of tooth-like spines ; their entire surfaces, 

 as well as those of the ossicles of the division series, are very finely thorny. 



