234 
SMITHSONIAN INSTITUTION 
PLATE 31 
Fig. I. 
(Figures natural size unless otherwise stated) 
Ampheristccrinus typus Hall 
Complete crown with very delicate arms, sharply angular calyx and long stem. 
Beech River formation; Decatur County, Tennessee. 
PAGE 
... 132 
Cyathocrimis decatur new species 134 
Fig. 2. Crown with long arms and stem, and smooth, elongate calyx. 
Beech River formation; Decatur County, Tennessee. 
Cyathocrinus wilsoni new species 134 
Fig. 3. Crown with very long brachials and conical calyx ; r. ant. iR view. X 3/2. 
3(1. Posterior side of calyx, showing anal plate. X 3/2. 
Laurel limestone; St. Paul, Indiana. 
Cyathocrinus cf. striolatus Angelin 134 
Figs. 4, 5. Post, and r. ant. views of two calices, with ridges passing from BB to adjoining plates. 
X 3/2. 
6, 6a. Post, and dorsal views of similar specimen with one IB smaller than the rest. X 3/2. 
6 h. R. ant. view of same, showing small IB. X 5/2. 
7. L. ant. view of specimen having 6 IBB. X 3/2. 
Laurel limestone; St. Paul, Indiana. 
Parisocrinus siluricus new species 135 
Fig. 8. Crown with arms in place, and part of stem ; ant. view. X 3/2. 
80. L. post, view of same, with massive anal tube. X 3/2. 
Laurel limestone; St. Paul, Indiana. 
Botryocrinus tenuidactylus new species 137 
Fig. 9. A set of arms with calyx wanting, having strong ramules bearing slender pinnules. 
Beech River formation; Decatur County, Tennessee. 
Botryocrinus polyxo (Hall) 138 
Fig. 10. Calyx showing form and position of RA. 
Waldron shale; Hartsville, Indiana. 
( ?)Lecythiocrinus problematicus new species 133 
Figs. II, iia, iib. Post, dorsal and ventral views of the only specimen, with anal opening below 
level of RR, which close above it ; 3 small, unequal IBB ; very large RR, and tegmen 
apparently composed of a few large plates. X 3. 
Laurel limestone; St Paul, Indiana. 
Parastephanocrinus intermedins new genus and species 139 
Figs. 12, 12a, 12b. Post., dorsal and ventral views of unique specimen, showing anal opening in line 
with RR directly over post. B; 5 IBB at bottom of deep cavity; forked RR with sinus 
for food-grooves passing in to central cavity ; tegmen not preserved. X 2. 
I2C. Detail of RR and food grooves. X 4 - 
Louisville limestone; near Bob, Decatur County, Tennessee. 
