PLATE XL. 



Page 

 Agaricoceixus splexdens S. a. Miller 495 



Fig. la. A large specimen with arms and stem. 

 lb. Dorsal aspect of another specimen. 

 Ic. Ventral asj)ect of the calyx. 



(?) Agaricocrinus nodulosus 'Worthen 49-7 



2. Dorsal aspect of a very smooth specimen with portions of the arms, from 

 ■ Canton, Ind. 



Agaricocrinus elegaxs Wetherby 500 



3«. Dorsal aspect of a specimen from Hamilton, 111. 

 3b. Ventral aspect of the same. 



Agaricocrinus crassus Wetherby 499 



4. Tegmen of a small specimen from Tennessee ; the food grooves of the pos- 

 terior rays covered by large alternate plates. 



Agaricocrinus Worthen i Hall 490 



na. Posterior side of a large specimen. 



~)b. Anterior side of the same. 



5c. Dorsal aspect of same. 



5cl. Ventral aspect of same. 



Agaricocrinus americanus, var. tuberosus (Hall) 489 



6. Dorsal aspect of the calyx. 



(All the specimens in the collection of Wachsmuth and Springer, except that of 

 Fig. 5, which is in the Museum of Comparative Zoology.) 



