PliATE XXIV 
Melocrinus kindlei n. sp. 
Figures 1, 2, 3. Three views of a maximum specimen, showing the extreme asymmetric 
proportion of the calyx, and its obliquity to the axis of the column: 1, from right posterior radius, 
showing anal opening; 2, from posterior interradius; 3, from the left anterior radius, showing large 
basal in that position; also the beginning of the doubled ray. (Page 130.) 
Figures 4, 5, 6, 7. Four average specimens exhibiting different degrees of obliquity: 4, 5, 
left anterior and posterior interradial views, calyx strongly pitted at the angles, basals and radials 
at anterior side much higher than afc posterior; 6, left anterior radial view, with large basal in that 
position, and beginnings of the two rami of which the ray is composed; 7, posterior interradial view. 
(Page 130.) 
Figure 8. Basal view of another specimen, showing the division into four plates. (Page 130.) 
Figure 9. Tegmen of another specimen, showing strongly rimmed anal opening. (Page 130.) 
Root River locality. 
Melocrinus mackenzie n, sp. 
Figure 10. Left anterior radial view of a rotund specimen, showing short basals, rounded 
contour, and high tegmen, as contrasted with the last species. (Page 131.) 
Figure 11. Left anterior interradial view of another specimen showing extreme obliquity 
of calyx. (Page 131.) 
Figure 12. Tegmen of same specimen, showing small anal opening, probably without a tube. 
(Page 131.) 
Figure 13. Basal view of another specimen, right anterior interradius uppermost. (Page 131.) 
Root River locality. 
Melocrinus whittakeri n. sp. 
Figures 14, 15, 16, 17. Different views of the type specimen: 14, posterior interradial view 
of calyx; 15, right anterior radial view, showing asymmetry; 16, basal view, right posterior inter- 
radius up, and large basal in the most frequent left anterior position; note the extremely small size 
of the column facet as compared with that of the others; 17, the tegmen, with opening for small 
subcentral anal tube. (Page 131.) 
Trout River locality. 
Hexacrinus humei n. sp. 
Figure 18. Posterior view of the type and only specimen, with fractured base restored in 
outline; anal opening strongly excentric and directed laterally. Enlarged X 2. (Page 132.) 
Figure 19. Tegmen of same, chiefly occupied by oral plates. X 2. (Page 132.) 
Root River locality. 
All figures natural size unless otherwise stated. 
The photographs for the figures on this plate were made by Dr. Charles E. Resser, of the 
U.S. National Museum, and carefully redrawn by Miss Francesca Wieser, with the kind permission 
of Dr. T. W. Stanton, of the U.S. Geological Survey; to all of whom the author extends his thanks. 
