130 
SMITHSONIAN INSTITUTION 
Crotalocrinus pulcher (Hisinger) 
Plate 26, fig. 21 
Cyathocrinus pulcher Hisinger, Leth. Suecc., Supp. 2, 1840, p. 6, pi. 29, figs. 5a, b. — Crotalocrinus pulcher 
Angelin, Icon. Crin. Suecc., 1878, p. 26, pis. 7, figs. 5-7; 8, figs. 1-9; 17, figs, la-d; 25, figs. 8-20. — 
Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phil., 1888, p. 386, pi. 20, figs, la, b. 
The figure of a very complete specimen of this species is given to afford 
a general idea of the formation and arrangement of the reticulate flexible ap- 
pendages into which the rays are formed by the lateral connection of the arm- 
branches as illustrated in figure 21. In this form the network is divided into 
five leaf-like fronds which when folded overlap one another. The one in which 
the reticulation is continuous around the calyx and inrolled from the distal 
margin is shown in the Wachsmuth and Springer paper, plate 19, figure la, 
which should be consulted for comparison. The species occurs both in Gotland 
and England. 
