XXVill DESCRIPTIVE REMARKS. 
proceed rays, and provided with a jointed stem, terminating in root-like 
processes, for the purpose of attachment to submarine bodies. 
Fig. 7.— Parts af a Crinoid (after Forbes). 
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a, Calyx, or eup. q. Pinnules, or fingers. 
6. Basal plates, ** Pelvis.” fh. Mouth, or proboscis. 
ce. Primary radial plates. z. Stem, or column. 
d, Intermediate and accessory plates. 7. Joints. 
e Brachial plates. k. Ramules, or side arms. 
f, Arms. 
7. Root, or base of attachment. 
