I»l. I. 



1. Sguamasfcr eihinatus. 



a diagram to illustrate the arransem^nt of the plates, denuded of the spines on one 

 side. 



•i. Proiaster stclli/cr. 



a &* />, dorsal and ventral sides of another specimen. 



3. Eugaster conciiinus. 



4. Lccanocriniis soliiius. 



5. Lfcanocrinus niiidus. 



6. Lecanocrinus incisus. 



7. Lecatiocrinus excavatits. 



8. Lecanocrinus fiutcolus. 



9. Platycrinus corporiculus. 



10. Callocystites tripectinatus, ventral side. 



a, sinistral side. 

 ^, dextral side. 



