114 
THE SCIENTIST. 
covered by minute pieces marks the position 
of the anal opening. Anal plate protuberant 
and forming the back of the wart-like pro- 
minence. Dome plates crowned with short 
spine like nodes. Surface of tie entire body 
granular. The upper joint of the column is 
round. 
The collection contains but one specimen, 
found in the Lower Burlington Limestone at 
Louisiana, Mo, 
DORYCRINUS INFLATUS, n. sp. 
Plate III. Fig. 4, side view of the body. 
Natural size. 
Calyx low, basket-shaped. Done convex 
and very much svVollen at the anal s'de. First 
radial plates slightly convex about their edges 
and with a scarcely noticeable central de- 
pression bounded below by a ridge-like lun- 
u'e. Three of these five plates are hex- 
agonal and two heptagonal. Width a liitle 
greater than length. Second radials quad- 
rangular, twice as wide as long with a central 
elongate ridge traversing the width of the 
plates. Third primary radial or bifur. 
eating plate pentagonal with a length 
equal to hrif the width. Resting on 
the upper sloping edge of each third 
radial are two series of secondary radial 
plates, with two plates to the series, 
except in the right and left posterior rays 
where one limb each bears a secondary bi- 
furcating plate, supporting two arm-bear'ng 
pieces. All of the radial plates bear the 
central elongate ridge. First anal plate ?s 
large as first radials, width and length equal, 
heptagonal, with the hinule. This plate sup- 
ports above, three rather large plates, the 
central one being octagonal and the lateral 
ones hexagonal. All three bear a central 
node like ridge. First interradial plate nearly 
as large as the first anal plate, ten sided, 
width and length equal. There are two 
small wedge-shaped plates above each first 
interradial. The twelve arm bearing plates 
have a strongly toothed appearance. Basal 
plates pentagonal, width greater than length, 
excavated below for the reception of a rather 
strong column. Around this excavation the 
basal plates form a low, scarcely perceptible 
rim. The plates cf the dome are large and 
without apparent ornamentation and with 
no central convexity. Unfortunately the two 
specimens found are so injured about the top 
of the vault that the anal opening has not 
been examined and the presence or absence 
of a central spine is a matter of conjecture 
only. 
P ound at the very base cf the Lower Bur- 
lington Limestone at Louisiana, Mo. 
Batocrinus bulbosus, n. sp. 
Plate III Fig. 5, lateral view of the body. 
Natural size. 
Calyx, bowl shap d. Dome, flattened, 
scarcely convex away from the base of the 
anal tube. The plates of both calyx and 
vault without ornamentation and with no 
perceptible central convexity. Basal plates 
excavated for the column but fojniing no 
rim. First radials very large, width a little 
greater ihan length, hexagonal. Second 
radials quadrangular, width once and a half 
the length. Third radials of the right 
and left anterior rays, pentagonal, anterior 
one heptagonal. The right and left posterior 
rays have hexagonal third radials. In the 
anterior ray there are two series of two plates 
each of secondary radials. This is also the 
case in the right anterior ray while in the 
left anterior ray and one limb each of the 
posterior rays the second secondary plate is 
a bifurcating piece, supporting two arm- 
bearing plates above, makmg fourteen arms 
in all. Arm-bearing plates not protuberant. 
Openings large. 
The first plate of the anal series is large, 
nine-sided, length and width equal. Above 
this plate and resting on its sloping edges are 
three rather large plates, two octagonal and 
one hexagonal. The next series above con- 
tains four smaller plates The first inter- 
radial plate, krge, nine-sided. Two smaller 
hexagonal plates rest on the first interradial. 
