CRINOIDEA FLEXIBILIA /y 



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Figs. 13-14. Ichthyocrinus phillipsianus n. sp 284 



Fig. 13a. Lateral view of mature specimen ; a complete crown showing about the natural contour, 

 and the sharp prominent radial ridges. 



136. Basal view of same, with stem removed. Shows small, but distinct, IBB; BB entirely 

 within the column facet, and the RA also, so that it could not be seen from the side; 

 IIBr mostly 4. 



140. Distal portion of arms, from another specimen, crushed and much broken. 



14&. IIIBr from another part of same specimen, showing the raised margin of the plates. 



14c. Dorso-ventral section of same, showing the raised margin to be curved, and not imbri- 

 cated. X 2. 



I4d. Dorsal view of an arm near last bifurcation, showing the extreme angularity. X 2. 



I4(? (erroneously printed as c). Lateral view of arm a little higher up, showing the great depth 

 of brachials, and the downward curving of the " patelloid " processes and their 

 sockets. X 2. 



Wenlock Gr. ; Silurian. Dudley, England. 



Fig. 15. Ichthyocrinus bohemicus (Barrande MS.) 291 



Fig. 15. After Waagen and Jahn, pi. 61, fig. 7. X |. Collection Barrande, Prague, Bohemia. 

 Lower Devonian, Stage F^. Koneprus, Bohemia. 



Fig, 16. Ichthyocrinus sp 360 



Fig. 16. Specimen figured by Sandberger (Versteinerungen, pi. 35, fig. 176) as Taxocrinus 

 rhenanns, from the Lower Devonian, near Coblentz, Germany. Internal cast, perhaps 

 of this genus, more probably of Clidochirus. (After Sandberger.) 



All specimens on this plate are in the author's collection unless otherwise stated. 



