178 
SMITHSONIAN INSTITUTION 
PLATE 3 
(Figures natural size unless otherwise indicated) 
Lampterocrinus tennesseensis Roemer 20 
Fig. I. A typical calyx from posterior side, showing the anal series with sharp median ridge 
leading to the tube. 
2. L. ant. view of another calyx, showing bulging of the anal side at the right, and strong 
ridges passing from basals to radial series. 
3,4. Two other specimens differing in size and contour. 
5, 50. Complete crown with tubular extensions single from each ray, bearing alternating pin- 
nuliferous side arms; with anal tube preserved; it is free from the matrix, and the 
two views show opposite sides. 
6. Fragment of another specimen showing details of arms, with two pinnules from each 
brachial. X 2. 
Beech River formation; Decatur County, Tennessee. 
Lampterocrinus sculptus new species 21 
Figs. 7, 8. Two calices with more elaborate sculpturing and wider expanding contour — from same 
locality, and perhaps a variety of the preceding. 
Lampterocrinus roemeri new species 21 
Fig. 9. Characteristic specimen, with bases of tubular extensions attached, and part of the pen- 
tagonal stem. 
10. Complete crown, with anal tube ; radial extensions and side-arms well preserved. 
11, 12, 13. Three calices showing uniform character of the simplified ridges. 
14. Ventral view, showing base of anal tube. 
Beech River formation ; Decatur County, Tennessee. 
genus and species indet 21 
Fig. 15. Fragment with six-sided stem, sharply angular, and only part of basals. X 2. 
15a. Transverse view showing the large lumen, and angles of the hexagonal stem. X 2. 
Beech River formation; Decatur County, Tennessee. 
