204 
SMITHSONIAN INSTITUTION 
PLATE 16 
(Figures natural size unless otherwise stated) 
Marsipocrinus verneuili (Troost) 59 
Figs. I, la, Typical specimen with striate wrinkles, with shallow depression almost full width 
of pentagon, bordered by sharp rim: lateral, dorsal and ventral views. 
1C. Oblique view of calyx, enlarged, showing surface ornament in greater detail. X 2. 
2, 2a. Lateral and dorsal views of specimen with striate ornamentation. 
2 b. Tegmen of same enlarged, with relatively few and large plates. X 2. 
3. Crown of small specimen with strong rugose ornamentation, and broad, shallow, de- 
pressed base; form and proportions of arms well shown. 
3a. More direct view of calyx of same, enlarged, showing sculpturing in greater detail. X 2. 
4. Larger specimen with arms and pinnules. 
5, sa. Specimen with striate wrinkles, bases of arms coalesced, interradial spaces depressed. 
producing stellate outline ; basal depression narrow. Dorsal and ventral views. 
6. Similar specimen with arms partly preserved; basal depression narrow. 
Marsipocrinus excavatus new species 60 
Figs. 7, 7a, 7 &. Lateral, dorsal and ventral views of the only specimen; base abruptly depressed. 
Marsipocrinus concavus new species 60 
Fig. 8. Dorsal cup only; small base at bottom of a broad and deep concavity into which the 
radials extend far down to narrow faces; strongly wrinkled ornament. By oversight 
posed with small B at upper right. X 2. 
All Beech River formation. Decatur County, Tennessee. 
