PLATE LXVII. 



Page 

 PLATYCPaNCS Saffoedi Hall 694 



Fig. 1. A fine specimen with arms and column, from Indian Creek, Ind. (Coll. 

 W. and Sp.) 



2. Side view of the calyx. (Same collection.) 



3. Dorsal cup of a specimen from Burlington. (Same collection.) 



Platyceinus gltptus M. and W 693 



4. Specimen with arms and column. (Coll. W. and Sp.) 



5. Dorsal cup of a large, elongate specimen. (Same collection.) 



Platyceinus incomptus White 6G4 



6. A young specimen with arms, showing the numerous bifurcations of the rays, 



and a faint rugose ornamentation. 



Platycrixus spinifee, var. elongatus W. and Sp. 709 



7. Lateral view of the calyx, showing portions of the arms. (Same collection.) 



Platyceinus cavus Hall 715 



8a and b. Dorsal cup of two specimens. (Same collection.) 



Platyceinus Wortheni Hall 702 



9. The type specimen. (Illinois State collection.) 



Platyceinus geometeicus W. and Sp 697 



10. The type specimen. (Mus. Corap. Zool.) 



Platyceinus teuncatulus Hall 675 



11«. Side view of the calyx, showing the bases of the arms (enlarged). 

 lib. Side view of another specimen. 



