390 PROCEEDINGS OF THE ACADEMY OF [1888. 



Fig. 1^ Posterior view of the same specimen, showing the base of 

 the proboscis. 



Fig. 2!: Calyx of a small specimen of Crotalocrimis rugosus from 

 Dudley, England. 



(Collection of Wachsmuth and Springer.) 



Fig. 2!!: Ventral aspect of the same specimen. 



Fig. 3. Ventral aspect of Crotcdocriniis sp. ? 



(Drawn from a gutta percha cast. Original in the Muse- 

 um at Cambridge, England.) 



Fig. 4. Crotalocrimis sp. und., from Sweden. Ventral view, from 

 a fine drawing by Mr. G. Liljevall. (Original in the 

 National Museum at Stockholm). 



Fig. 5!: Enallocrinus scriptus. Posterior view of a specimen from 

 Sweden in the National Museum at Stockholm. 5^ ventral 

 view of same specimen, showing portions of the covering 

 plates in some places; the middle of the vault broken 

 away. 



Fig. 61 Enallocrinus scriptus. Anterior vieAv of a nearly complete 

 specimen from Dudley, England (Collection of Wach- 

 smuth and Springer), 61 transverse section of column of 

 same specimen, showing the large central canal ; 61 en- 

 larged side view of a portion of the arm, showing the 

 pectinated projections ; 61 Dorsal view of same. 



