■30 
SMITHSONIAN INSTITUTION 
PLATE 29 
(All figures natural size unless otherwise stated) p 
Eucheirocrinus chrysalis (Hall) 
Figs. I, la, ib, if. Ant., 1 . ant., post, and basal views of the type specimen, showing the single lateral 
arm, narrow tapering inferradial, and large size of median arm. 
2. Basal view of calyx of another specimen, reversed; to show the 4 unfused basal plates. 
X 3 / 2 . 
3- Complete crown, showing arms to full length, recumbent on stem. Type of Proclivocrinus 
radiculus Ring. 
Rochester shale; Lockport, New York. 
Eucheirocrinus indianensis (S. A. Miller) 
Figs. 4, 40, 4b. L. art., and basal views of type. X 2. 
Laurel limestone; St. Paul, Indiana. 
Eucheirocrinus minor new species 
Complete crown, recumbent, with stem to about its full length ; 1 . post, view, showing 
great length of brachials in median arm, and dichotomous branching of lateral arm. 
X 5 / 3 - 
Lower part of same from anterior side, showing base of arms. X 5/3- 
L. ant. view of calyx, showing connection of segments. X .5/3- 
Beech River formation; Decatur County, Tennessee. 
Eucheirocrinus anglicus new species 112, 
Complete crown from 1 . post, side, showing ponderous character of arms, and part of 
branchings of median arm. X 2. 
Shaded diagram from 1 . ant. view, showing calyx and complete bifurcation of median 
arm. X 3/2. See also text-fig. sc. 
Wenlockian, Silurian ; Dudley, England. 
Calceocrinus foerstei new species 
Figs./, 7a, 7(1. L. post., 1 . ant., and post, views of crown, the two segments of 1 . ant. R. connected, 
inferradial elongate quadrilateral ; 1. ant. arm complete, unbranched ; main branch of 
axil-arms entirely concealed by large ramules from outer Betabrachs ; anal plates 
much foreshortened owing to curvature ; 7(7 shows several plates of anal tube pro- 
jecting beyond arms. 
8. 8a, 8 b. Similar views of smaller specimen, also showing anal tube. 
9. Complete crown with stem, in partially erect position; tube projecting. 
10. A distorted crown, probably of this species. 
11. Set of arms of unusual .size, with 7 axil-arms, probably of this species; to be compared 
with C. tena.r Bather, of Gotland. 
Encalyptocrinus zone. Beech River formation; Decatur County, Tennessee. 
Calceocrinus bassleri new species 
Figs. 12, 12a, 12(7. L. post., 1 . ant. and post, views of crown, showing the two triangular segments of 
1 . ant. R. separated by the large RR meeting between them; 1 . ant. arm simple; main 
branch of axil-arms partly exposed at inner side of large ramule; anal tube projecting 
beyond the arms. 
I2r. The hinge, showing structures when base is closed upon radials. 
13. A large crown with calyx plates slightly displaced, giving 1 . post, view of arms with 
1 . ant. exposure of calyx and large median arm ; main branch of axil-arms well 
exposed at inner side of large ramules, showing two more bifurcations. 
13a. Another view of hinge. 
14. L. post, view of still larger crown with part of stem, showing very short columnals ; 
main branch of axil-arms nodose and further bifurcating. In this specimen the two 
segments of 1 . ant. R. almost connect by their points. (See also pi. 28, fig. 21.) 
Horizon and locality, same as last. 
Fig. s. 
Fig. 6. 
6 a. 
