﻿84 SMITHSONIAN MISCELLANEOUS COLLECTIONS [VOL. 47 



Megistocrinus abnormis (Lyon) p. 6s 



Fig. 3. Enlargement of a portion of the surface of a well-preserved speci- 

 men. X 2. 



Megistocrinus regularis n. sp p. 59 



Fig. 4. Lateral view of holotype. 



4a. Basal view of specimen represented by fig. 4. 



Plate XVI 

 Dolatocrinus asterias n. sp p. 71 



Fig. 1. Lateral view of holotype. 



la. Basal view of another specimen. 



Tripleurocrinus levis n. gen. et sp p. 57 



Fig. 2. View of type specimen embedded in limestone matrix. 

 20. Top view of a stem joint. X 3- 



Megistocrinus tubcratus n. sp p. 57 



Fig. 3. Posterior view of a young individual. 

 3a. Basal view of same specimen. 

 See plate xv, figs. 2-2C. 



Arthracantha punctobrachiata Williams p. 71 



Fig. 4. Dorsal view of well-preserved individual embedded in shale. 



Tylocrinns novus n. gen. et sp p. 66 



Fig. 5. Lateral view of holotype. 



5a. Base of specimen represented by fig. 5. X 2. 



Dolatocrinus costatus n. sp p. 70 



Fig. 6. Tegmen of holotype. 



6a. Lateral view of specimen represented by fig. 6. 



