PLATE LXKIX. 



Pace 



Talarocrinus suB(iLOBOsus W. and Sp 78'J 



Fig. la. Posterior view of the calyx. (Coll. W. and Sp.) 

 lb. Ventral aspect of the same sijecimen. 



Pterotocrinus depressus Lyon and Cass 79G 



'2a. Lateral view of the type specimen. (Coll. S. S. Lyon.) 



2!). Lateral view of the calyx, showing two of the wings. (Coll. TV. and Sp.) 



2c. Dorsal aspect of the calyx. (Same collection.) 



2d. Another type specimen, showing the wings in position. (Coll. S. S. Lyon.) 



2e. A wing, showing the face of attachment. 



Pterotocrinus acutus Wetherby 799 



3a. Posterior view of the calyx. (Coll. W. and Sp.) 



3b. Anterior view of the same specimen. 



3c. Ventral aspect of a specimen with two of the wings preserved, and the anus 



covered by a Gasteropod. (vSame collection.) 

 3(/. Another specimen, showing the wings in a side view. (Same collection.)" 

 3i'. Dorsal aspect of a fine specimen with arms and wings. (Same collection.) 

 3/" and (7. 2 wings of a different species. (Same collection.) 



Pterotocrinus ptramidalis Lyon and Cass 79.S 



4a. The tj'pe specimen ; lateral view of the calyx. (Coll. S. S. Lyon.) 

 41). Dorsal aspect of the same specimen. 



Pterotocrinus chesterensis IMeek and Worthen S02 



5a. One of the type specimens; lateral aspect. (After Meek and Worthen.) 

 5b. Another type specimen, showing the posterior side of the caljx. (After 

 Meek and Worthen.) 



Pterotocrinus capttalis Lyon . . . . , 794 



fia. Postero-lateral view of the type specimen. (Coll. S. S. Lyon.) 

 (Jb. Ventral aspect of the same. 



Pterotocrinus coronarius Lyon 79." 



7a. Ventral aspect of the type specimen. (Same collection.) 

 7b. Side view of the same ; the dorsal c>ip not preserved. 



