PLATE III. 



Isocrinus knighti Springer (p. 25). 

 U. S. Nat. Mus. 682. 



Figure la. Column with attached pinnules. 



lb. Articular surface of a detached joint of the column, X 4. 



lc. Lateral view of a portion of the column, X 4. 



Id. Enlarged pinnule, X 2. 



Pentacrintjs asterisctjs Meek and Hayden (p. 26). 

 U. S. Nat. Mus. 220, type. (After Meek and Hayden.) 

 Figure 2. Upper surface of a detached joint, X 5. 



Pentaceintjs whitei Clark (p. 27). 



U. S. Nat. Mus. 8588, type. 



Figure 3a. Articular surface of a detached joint of the column, X 2. 

 3b. Same, X 2. 

 3c. Lateral view of a portion of the column. 



Pentacrinus shastensis Clark, n. sp. (p. 28). 



U. S. Nat. Mus. 311S0, type. 



Figure -1. Articular surface of a detached joint of the column, X 3. 



Ophioglypha utahensis Clark, n. sp. (p. 29). 



U. S. Nat. Mus. 22839, type. 



Figure 5. Upper surface of specimen, X 3. 



Asterias (?) dubitjm Whitfield (p. 28). 



U. S. Nat. Mus. 12325, type. 



Figure 6. Gutta-percha cast of three individuals. 

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