PLATE LXXX. 



Page 

 AcROCRixus Shumardi Yandell 806 



Fig. 1. Lateral view of the type specimen. (Dr. Yandell 's collection.) 



2. Fragmentary specimen from Huntsville, Ala. (Coll. W. and Sp.) 



3. The lower part of the dorsal cup ; from Pulaski Co., Ky. (Coll. W. and Sp.) 



AcROCRiNus AMPHORA W. and Sp 808 



4. A large specimen with portions of the arms and stem. 



5. A smaller specimen, enlarged (f). 



6. The calyx somewhat flattened and enlarged (^). 



The right posterior ray forming the median line of figure ; the anal inter- 

 radius occupying the left side. 



7. Another specimen showing calyx and lower part of the arms'(?)- 



8. Ventral aspect of a large specimen (f ). 



9. A specimen showing the calyx, the pendent arms, the turned up pinnules, and 



the stem. 



(All in the collection of "W. and Sp.) 



AcEOCEiNus WoKTHENi Wachsmuth 807 



10«. Diagram made from the type specimen in the Illinois State Museum. 

 10b. Showing the outlines of the specimen. 



