PLATE LXXVIII. 



Page 

 Talarocrinus sexlobatus (Shumard) 784 



Fig. la. Posterior view of a specimen from Flagpout, Va. (V)- (Coll. W. and Sp.) 

 lb. Ventral aspect of the same specimen (Y). 

 Ic. Dorsal view of the calyx. (Coll. W. and Sp.) 



Talarocrinus otatus Worthen 7S7 



2ff. Posterior view of the type specimen ('/)■ (Illinois St. Coll.) 

 2b. Ventral aspect of the same specimen ("y ). 



Talaeocrixus decorxis W. and Sp 788 



3a. Posterior view of the type specimen Qj). (Coll. W. and Sp.) 



36. Ventral aspect of the same Cj). 



3c. Specimen with arms (Y). (Same collection.) 



Talarocrinus symmetricus (Cass, and Lyon) 786 



4rt. Posterior view of the calyx (\^). (Coll. W. and Sp.) 



44. Ventral aspect of the same specimen ('/). 



5. Posterior view of type Q/). (Coll. S. S. Lyon.) 



Talarocrixus oobnigerus (Shumard) 783 



Grt. Posterior view of a specimen from Pulaski Co., Ky. (Coll. W. and Sp.) 



Gb. Ventral aspect of the same specimen (Y). 



la. Anterior view of the type specimen, from Alabama Q^). (Mus. Washington 



University, St. Louis.) 

 lb. Ventral aspect of the same Qf). 



Talarocrinus simplex (Shumard) 790 



8a. Anterior view of the dorsal cup (Y). (Coll. W. and Sp.) 

 %b. Dorsal aspect of a larger specimen. (Same collection.) 



Talarocrinus sp. (?) 



9ff. Posterior view of a specimen from Pulaski Co., Ky. Qf). Perhaps an ab- 

 normal specimen of T. sexlobatus. (Coll. W. and Sp.) 

 95. Oral plates of the same ('/)• 



Hexacrinus occidentalis W. and Sp 745 



10. Anterior view of the type specimen. (Mus. Davenport Acad. Nat. Sci.) 



