Description of New Genera of Echinodermata. 3 
DESCRIPTION OF SOME NEW GENERA AND SPECIES 
OF ECHINODERMATA, FROM THE COAL MEAS- 
URES AND SUBCARBONIFEROUS ROCKS 
OF INDIANA, MISSOURI AND IOWA. 
By S. A. MILLER AND Wm. F. E. GURLEY. 
LasT summer, Sidney J. Hare, E. Butts and D. H. Todd col- 
lected a lot of very fine crinoids in the Upper Coal Measures, at 
Kansas City, Missouri, many of which have fallen into the hands 
of one of the authors of this paper, Mr. Gurley. They are the 
finest specimens ever found in the Coal Measures, and it is, 
therefore, a pleasure to describe them. ‘The stone quarries in the 
Waverly or Kinderhook Group, at Legrand, on the Chicago and 
Northwestern Railroad, in Marshall County, lowa, contain some 
layers of yellowish, soft, sandy limestone, bearing the remains of 
Crinoids and other Echinoderms in a remarkably fine state of pres- 
ervation, and Mr. Gurley visited the locality soon after its discovery, 
and succeeded in obtaining a large collection. He has been an 
active collector, in the rocks of Indiana, Illinois, Iowa and Mis- 
sourl, for many years, and all the specimens here defined and 
illustrated are from his cabinet. 
EUPACHYCRINID®. n. fam. 
The genera for which we propose the family name of Eupacli- 
crinidz, with the Genus Eupachycrinus as the type, all belong to 
the Subcarboniferous System and Coal Measures. The calyx is 
more or less globular or bowl-shaped, and consists of five basals, 
five subradials, five primary first radials, concave internally with a 
broad upper face, from one to three azygous interradials and no 
regular interradials. There are one or more brachials, and the 
arms are composed of a double series of interlocking plates, which 
bear short pinnules. The columnissmall andround. We include 
* in the family Eupachycrinus, Delocrinus and Ulocrinus. 
