NARRATIVE OF THE CRUISE. 



305 



broken across at a nodal joint, and the body with the upper part of the stem liberated, 

 eventually to attach itself elsewhere by means of its cirri, 



Fig. 118. — Metacrinua loyvillii, V. II. Carpenter. 



Fig. 119.— Rhixocrinut Infotamt, If. San. 



" The lowest part of the cup which rests upon the top of the stem is formed of a more 

 or less complete ring of basal plates. Alternating with the basals, and resting upon them, 

 are the first radials, and second radials are attached to these by muscular joints, bearing 



(xakb CIUU. EXP.— vol. i. —1884.) 39 



