EXPLANATION OF TABLE B. 
THE PLATES OF THE RAYS IN DIFFERENT GENERA. 
Part of ray of Marsupiocrinus ; costals, distichals, first and second palmars — of the latter only those of 
the two outer sides of the rays — abutting against the radials. 
Scaphiocrinus. Arms uniserial; pinnulated ; dichotomizing; the joints cuneate. 
Belemnocrinus typus. Arms uniserial, giving off armlets at intervals. 
A ray of Periechocrinus Whitfieldi. Arms biserial, branching in the free state. 
Proximal part of a ray of Steganocrinus sculptus. Arms biserial, given off alternately from opposite sides 
of tubular appendages. 
Proximal part of a ray of Crofalocrinus pulcher ; the lower brachials arranged as in Fig. 1. 
Part of ray of Onychocrinus ramulosus. Arms uniserial; the main branches giving off branchlets in 
clusters. 
Left section of a ray of Strotocrinus regalis. The arms given off from the proximal plate at alternate 
sides within the calyx. 
Symbathocrinus Wuchsmuthi. Arms uniserial, composed exclusively of costals; the joints arranged 
parallel. 
The following symbols are used in the figures: R = radials; I = primary brachials or costals ; IT = 
secondary brachials or distichals ; III = tertiary brachials or palmars ; [LV = fourth order of brachials ; V = 
fifth order of brachials; and so on; p. = pinnules; a. =armlets. 
