Plate 15. 



Page. 

 DOLATOCRINUS BELLULUS Miller and Gurley 56. 



Figs. 1, 2, 3. Basal, lateral, and tetrmenal views of a typical specimen so 

 labeled by Mr. Miller. University of Chicago Coll. The type 

 is lost. 

 4, 5, 6. Similar \'iews of type of D. b'silicus Miller and Giirley. Uni- 

 versity of Chicago Coll., No. 6090. 



DOLATOCRINUS LINEOLATUS Miller and Gurley 55 



7. The type of D. salebrosus Miller and Gurley. University of Chicago 



Coll., No. 6103. 



DOLATOCRINUS VENUSTUS Miller and Gurley 50 



8. The type of D. arrosus Miller and Gurley. University of Chicago 



Coll., No. 6105. 



DOLATOCRINUS NODOSUS MUler and Gurley 5& 



9. 10, 11. Basal, lateral, and tegmenal views of the type. University 



of Cliicago Coll., No. 6081. 



DOLATOCRINUS FUNGIFERUS Rowley 57 



12, 13. A spBcimea showing the mushroom-shaped spines; lateral and 

 tegmenal views. 

 All Hamilton : Tvouisville area . 

 74 



