EXPLANATION OF PLATE 11. 



Page. 



Figs. 1, 2. Eretmocrinus spinosus (Miller and Gurley), basal and side views of 



Troost's type of Actinocrinites marineri 67 



3. Eucalyptocrinus ovalis Hall, side view of the type-specimen 48 



4. Eupachycrinus maniformis (Yandell and Shumard), side view of Troost's 



type of Cyathocrinites gracilis, showing left posterior lateral ray and 



the anal area. X1J 94 



5. Cyathocrinus? municipalis (Troost), side view of a specimen partially 



embedded in the matrix. The specimen was figured by Troost as 

 Poteriocrinites municipalis S2 



6. 7, .8. Hydreionocrinus depressus (Troost) (Hall), basal, interior, and pos- 



terior views of Troost's type of Cyathocrinites depressus. Xl| 92 



9. Scytalocrinus? gracilis (Troost), side view of Troost's type of Agassizo- 



crinites gracilis. X 2 88 



138 



