PLATE XL. 



Page 



Agaeicoceinus splendens S. A. Miller 495 



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

 lb. Dorsal aspect of another specimen. 

 le. Ventral aspect of the calyx. 



(?) Agaeicoceinus nodulosus Worthen 497 



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

 Canton, Ind. 



Agaeicoceinus elegans Wetherby 500 



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

 3b. Ventral aspect of the same. 



Agaricocbinus cbassus Wetherby 499 



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

 terior rays covered by large alternate plates. 



Agaeicoceinus Woetheni Hall 490 



5a. Posterior side of a large specimen. 

 55. Anterior side of the same. 

 5c. Dorsal aspect of same. 

 5d. Ventral aspect of same. 



Agaeicoceinus ameeicanus, var. tubeeosus (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.) 



