PLATE XL 



PAGE 



Figs. 1-3. CALCEOCRINUS MARYLANDICUS Ohern n. sp 253 



Three views of calyx and base of arms. Oriskany formation, Ridgely 

 member, opposite Keyser, W. Va. 



Figs. 4, 5. HOMOCRINUS PROBOSCIDALIS Hall 255 



4. View of calyx and base of arms. 



5. Enlargement of same. X 2. 



Oriskany formation, Ridgely member, Cumberland. (After 

 Hall.) 



Fig. 6. HOMOCRINUS HARTLEY: Ohern n. sp 255 



Side view of calyx. Oriskany formation, Ridgely member, Cumber- 

 land. 



Figs. 7-12. EDRIOCRINUS SACCULIIS Hall 25G 



7-9. Three views of calyx and arms. 



10-12. Three views of calyx and arms of a larger specimen. 

 Oriskany formation, Ridgely member, Cumberland. 



Figs. 13-15. EDRIOCRINUS POCILLIFORMIS Hall 257 



13. Basal view of a large individual, the proportional length being 



greater than usual. 



14. Lateral view of the same. 



15. Interior of the same. 



New Scotland formation, New York. 



Fig. 16. CORNULITES CINGUL.ATUS Hall 258 



Small specimen, enlarged. Helderberg formation, New York. 



31 



