Echinodcnitata and a Neiv Brachiopod. — Rowley. 279 
The specimtMi comes from the Cliiitnn l)C'(ls tliruc miles northeast of 
Edgewood, Pike Co., Mo. 
Lampterocrinus? comptus, n. sp. 
Pi.ATK XVI. Fk-.s. n?, 58. 
The specimens of this crinoid are so fragmentary as to 
render a description more or less imperfect. Detached plates 
are not uncommon but perfect bodies are not known. The 
two specimens figured preserve enough to show that the spec- 
ies had a slight basal rim about a shallow stem cicatrix, five 
basals and five larger radials, with two costals to the ray. 
The regular interradials are in series of i, 2, etc. and the 
anal area of i, 3, etc. Radiating ridges cross from center to 
center of adjoining plates. 
The specimens are from the Clinton oolite three miles west of Lou- 
isiana, Mo. 
Crixoid stems. 
Plate X VI. Figs. 42, 4-3, 44, 45, 46. 
The stem represented by figs. 42, 43 is that of a Glypto- 
crinus. perhaps, as also the specimen near the top of the page, 
differing none from the lower part of the stem belonging to 
fig. 56, except in size. 
Figure 46 is a related stem but coming from the oolite 
west of Louisiana while 42 and 43 are from the earthy Clin- 
ton beds near Edgewood. 
44 and 45 are doubtless a !Mariacrinus stem associated with 
42 and 43. 
Crixoid stumps. 
Plate XVI. Figs. 54, 55, 59. 
The figures 54 and 55 are of a specimen from the red and 
yellow-banded Niagara limestone of Ste. Genevieve Co., j\Io. 
The specimen is without roots, being merely expanded below. 
Fig. 59 is from the same horizon and locality and possesses 
roots. 
Crixoid dases. 
Plate XVI. Figs. 48, 53. 
Figure 48 is composed of three basal plates with sutural 
ridges and a round protuberant stem base. From the Clinton 
oolite, three miles west of Louisiana. 
