PLATE XLII. 



Page 

 Agakicoceixis americanus (RcEmer) 488 



Fig. 1. Specimen with arms, from Indiana. 



2«. Posterior side of the calyx (specimen from Tennessee). 

 2b. Anterior side of another specimen (from tlie same locality). 



Agaricocrinus Whitfiei-di Hall 496 



3. Ventral aspect of the calyx. (Illinois State collection.) 



Agaricocrinus americanus, var. tubeeosus (Hall) 489 



4. Dorsal aspect of the calyx. 



DORYCRIXUS COENIGEEUS (Hall) 458 



5. Specimen with arms and stem. 



6. Postero-lateral view of calyx. 



DOEYCRINUS QUINQUELOBUS Hall 460 



7. Side view of the calyx ; the spines broken away. 



8. Lateral view of a specimen with arms. 



9. Posterior side of calyx ; the spines intact. 



DoEYCRiNus suBTUEBiNATus Meek and Worthen 4G6 



10(7, Antero-lateral view of the calyx. 

 106. Posterior view of the calyx. 



AoROCRiNus Cassedayi (Lyon) 483 



11a. Ventral aspect of the type specimen. (Lyon collection.) 



lib. Posterior side of the same. 



12. Side view of a specimen from Alpena, Jlich. 



AoROCEiNus coNCAvus ( IMcck and Worthen) 482 



13«. Dorsal aspect of the type specimen. (Mus. Comp. Zool.) 

 13b. Ventral aspect of the same. 

 13c. Side view of same. 



Alloprosallocrinus conicus Lyon and Cass. 407 



14a. Anterior view of the calyx. 

 146. Posterior view of the same. 

 1 Ic. Dorsal aspect of same. 



(All specimens in the collection of Wachsrauth and Springer, unless otherwise stated.) 



