PLATE XLIII. 



Page 

 Doeycbinus mississippiensis P. Boemer . 455 



Fig. 1. Specimen with arms and stem. (Coll. Lisbon A. Cox.) 



Doeycrinus Gouldi (Hall) . . . , 456 



2. Large specimen with arms and stem. (Coll. W. and Sp.) 



3. A young specimen with arms. (Same collection.) 



Aoeooeinus spinosulus (Hall) 478 



4. Specimen with arms. (Coll. L. A. Cox.) 



Dobyceixus coenigebus (Hall) 458 



5. Calyx, showing the anal side. (Coll. W. and Sp.) 



Doeyceinus missouriensis (Shumard) 463 



6. Posterior side of the calyx with most of the spines intact. (Same collection.) 



Agaricocrinus nodulosus Worthen 497 



la. Dorsal aspect of the calyx. (Same collection.) 

 lb. Ventral aspect of the calyx. 



Agaricoceinus Whitfieldi Hall 496 



8a. Dorsal aspect of the type specimen. (Illinois State collection.) 

 8b. Ventral aspect of the same specimen. 



Agaricoceinus nodosus Meek and Worthen 493 



9. Calyx and portion of the arms. (Coll. W. and Sp.) 



