200 
SMITHSONIAN INSTITUTION 
PLATE 14 
(Figures natural size unless otherwise noted) page 
Marsipocrinus tennesseensis (Roemer) 57 
(See also pi. 15, figs. 9, ga) 
Figs. I, la, i&. T3T3ical specimen with biconvex calyx, radial facets directed upward, granular sur- 
face on cup, tegmen plates rounded or angular ; ambulacra well defined. 
2, 2a, 2b. Similar specimen with tegmen plates partly nodose. Original of W. and Spr. N. A. 
Crin. Cam., Ixx, 16. 
3, Lateral view, for profile, of strongly convex calyx. 
4, Tegmen with nodose plates, intermediate from preceding species. 
5, 50. Large specimen with massive convex tegmen plates and prominent ambulacra. 
6, 6cr. Profile and tegminal view of maximum specimen with angular plates. 
Beech River formation; Decatur County, Tennessee. 
Marsipocrinus striatus Wachsmuth and Springer 58 
Figs. 7 , 7a, yb, 7c. Lateral, dorsal and ventral views of specimen with biconvex calyx, striate orna- 
ment on dorsal cup, tegmen plates low convex and smooth, ambulacra very distinct; 
7c, detail of surface of cup enlarged. X 2. 
8, 8a, Sb. Similar views of specimen with stronger striae. 
9, 9a. Lateral and ventral views of well marked specimen ; gb, oblique view of cup, showing- 
very fine striation, enlarged X 2. 
10, loa. Lateral and dorsal view, enlarged X 2, of specimen with coarser striae. 
11, iia. Abnormal specimen, with 2 rays malformed. 
12, 13. Two fragments showing detail of striation on dorsal cup, enlarged X 2. 
Beech River formation; Decatur County, Tennessee. 
