206 
SMITHSONIAN INSTITUTION 
PLATE 17 
(Figures natural size unless otherwise stated) page 
Marsipocrinus stellatus (Troost) 6o 
Figs. I, la, ih. Lateral, dorsal and ventral views of specimen with dorsal surface perfectly smooth; 
numerous large plates in tegmen shown, but ambulacra much eroded ; basal depres- 
sion around facet small. 
2 , 2 a, 2 b. Similar views of specimen with prominent ambulacra well defined; 2 a and 2b en- 
larged X2. 
3,3a. Lateral and ventral views of specimen with ambulacra still better defined; 3a enlarged 
X2. 
4, 5, 6, 7. Specimens with arms and stem more or less completely preserved. 
8,9,10. Tegmens in different conditions of preservation; fig. 10 may not belong here, dorsal 
side not being exposed. X 2. 
Beech River formation; Decatur County, Tennessee. 
Marsipocrinus turbinatus new species 62 
Figs. II, 12, 13. Fragmentary bases from St. Paul, Indiana. 
14. Lateral view of basals, showing extremely turbinate form. 
Laurel limestone; St. Paul, Indiana. 
