PLATE XXV. 



Page 

 DoLATOCRiNus ExcAVATUs W. and Sp 321 



Fig. 1. Dorsal aspect. (Coll. Victor AV. Lyon.) 



DoLATocRiNus Marshi, var. HAMiLTONExsis W. and Sp. . . . 314 



2a. Dorsal aspect. (Coll. Victor W. Lyou.) 

 25. Ventral aspect of the same specimen. 



DoLATocRiNus TUBERCULATus W. and Sp , 324 



3. Dorsal aspect. (Victor W. Lyon.) 



DOLATOCRINUS SPECIOSUS Hall 323 



4a. Dorsal aspect. (Coll. W. and Sp.) 

 46. Side view of the same specimen. 



DoLATOCRiNus MAJOR W. and Sp 322 



5. Dorsal aspect. (Coll. Victor W. Lyon.) 



DoLATOCEixus Ltoni W. and Sp 314 



6a. Dorsal aspect. (Same collection.) 



6b. Ventral aspect of another specimen. (Same collection.) 



6c. Side view of the same specimen. 



6d. Portion of the tegmen, showing the slits ; enlarged. 



DoLATOCEiNus CANADENSIS Whiteaves 315 



7((. Dorsal aspect. (After Whiteaves.) 

 7b. Ventral aspect of same specimen. 



Stereocrinus tktangulatus Barris 325 



8a. The type specimen. (JMuseum Davenport Acad. Nat. Sci.) 

 8b. Side view of same specimen. 



Stereocrinus Barrisi W. and Sp 326 



9a. Side view of a fine specimen. (Same collection.) 



9b. Ventral aspect of another specimen. (Coll. W. and Sp.) 



Cextrocrinus pentaspinus Lyon 309 



10a. The type specimen ; dorsal view. (Coll. S. S. Lyon.) 

 10b. Side view of same specimen. 



10c. Side view of another specimen in the Lyon collection. (Described as 

 Actinocrinns multlcornus.) 



