PLATE XII. 



Page 

 Rhodocrinus Kirbyi W. and Sp 226 



Fig. la. Specimen with spreading arms. 



lb. Another specimen with arms and column, anterior view. 



Ic. Posterior view of another sj)ecimen. 



Id. The calyx, posterior view. 



Rhodocrinus nanus M. and W 228 



2a. Anterior view of a specimen with stem. 

 2b. Posterior view of another specimen. 

 (Both from the Kinderhook group.) 



Rhodocrinus Barrisi Hall 230 



3. A small specimen with arms. 



4a. A very large, nodose specimen ; dorsal aspect of the calyx. 



46. Side view of same specimen. 



4c. Posterior view of same. 



' Ad. Ventral aspect of same. 



5a. Lateral view of another specimen. 



5b. Dorsal aspect of same. 



Rhodocrinus Barrisi, var. striatus W. and Sp 231 



6. Lateral view of dorsal cup. 



Rhodocrinus Wortheni Hall 220 



7a. Specimen with arms. 



7/*. Dorsal aspect of calyx. 



7c. Ventral aspect of same specimen. 



Rhodocrinus Wortheni, var. urceolatus W. and Sp 221 



8a. Posterior view of the calyx. 



8b. Ventral aspect of same specimen. 



Rhodocrinus watersianus W. and Sp 221 



9. Specimen with arms and stem. 



(All the specimens are in the collection of Wachsmuth and Springer.) 



