ay 
14 Cincinnati Soctety of Natural History. 
DELOCRINUS MISSOURIENSIS, Nn. sp. 
Plate I1., Fig. 11, side view showing column; Fig. 12, basal view; Fig. 
13, azygous side view. 
This species may be distinguished at first view from D. hemi- 
sphericus by the lower calyx and more angular outline, and the top 
of the calyx when viewed from below presents a pentangular out- 
line; the basals extend slightly beyond the column; the subradials 
in the median part are sharply convex as distinguished from the 
gently arching plates in D. hemisphericus and do not extend as 
high proportionally as they doin the latter species, which reduces 
the height of the calyx; first radials regularly convex in the middle 
part but depressed medially toward the upper face of the plates 
which produces the pentangular outline when viewed from below; 
the second radials or brachials while exposing a very wide suture 
are not quite as thick and do not stand as upright as they do in D. 
hemisphericus, and have a more slender spine; the azygous plate is 
the same asin D. hemisphericus; the column is not as regular 
in the alternate arrangement of the thicker and thinner plates as 
in D. hemisphericus, the larger plates project far beyond the thin- 
ner ones and sometimes there are two or more thinner plates 
between the thicker ones. ) 
Found in the Upper Coal Measures, in Kansas City, Missouri, 
and now inthe collection of Wm. F. E. Gurley. 
ZZESIOCRINUS, n. gen. 
(Ety.: @zszos, auspicious, coming at good time ; &7znon, lily.) 
Column pentagonal; calyx bowl-shaped, plates smooth or finely 
granulous; basals five, forming a pentagonal flattened or slightly 
concave disc; subradials rather large, four hexagonal and one hep- 
tagonal, and curving upward so as to reach half the hight of the 
calyx; first radials five, pentagonal, wider than high and truncated 
the entire width for the brachials; one or more brachials in each ray 
supporting strong arms composed of a single series of plates; arms 
ten bearing pinnules; no regular interradials; a single azygous 
interradial rests upon the truncated upper end of a subradial, 
between two first radials, and is followed by two plates that connect 
with the base of the proboscis; proboscis long, composed of four 
series of gradually tapering plates bearing numerous transverse 
respiratory fissures or slits on the sides of the plates. 

