170 Cincinnati Society of Natural History. 
Intersecondary radials 7KS==....;.......) 223 ee 35 
Azygous interradialsy {hilen. ) iG 0 0 IMA: dd 
Brachials forming part of the cup 8X10=............. 80 
Interbrachials about 20X10. ........:...9 2.3 200 
Total number of plates in the cup about 485, instead of 185 as stated 
by Winchell and Marcy. 
femarks.—The specimen illustrated in the Mem. of the Bost. Soc. Nat. 
Hist., belongs to this species, and part of the description of Winchell and 
Marcy is applicable to it, but they evidently described the vault and 
upper part of another species as belonging to this one, and also had 
before them another undescribed form which they referred to it. Their 
diagram, too, is incorrect above the second secondary radial. They 
do not, however, loose their specific name, because the species to which 
they referred can be determined by the illustration, imperfect as it is. 
Moreover, their mistakes are pardonable, for they were not detected, 
by either Prof. Hall or Prof. Meek, both of whom studied the subject 
more or less, nor has any one before ascertained the characters of 
these peculiar casts, nothwithstanding they have been a fruitful sub- 
ject of discussion since 1865. It is, therefore, not without some 
pleasure, that Iam able to do justice to the work of Winchell and 
Marcy, restore the compliment intended for the learned and dis- 
tinguished French geologist, and ale a difficult question in the de- 
termination of a species. 
S ACCOCRINUS URNIFORMIS, Nl. Sp. 
Plate IV., fig. 2, view of theleft side of a specimen, natural size; fig. 2a, view of the 
vault of a compressed specimen. 
Body large, urn-shaped, sometimes attaining a length of three inches, 
and a diameter of two and a half inches. The basals arerather small. 
The first radials are large and nearly as wide as high. The second 
radials are a little smaller, hexagonal, and higher than wide. The 
third radials are heptagonal, about the same size as the second, and 
are also higher than wide. The first secondary radials are heptagonal, 
and about two thirds as large as the third radials. ‘The second second- 
ary radials are heptagonal, and a little smaller than the first. The 
tertiary radials are about half the size of the latter, and support the 
brachials. 
Interradials.—Regular interradials about twelve in each space, 
which are succeeded by a few interbrachials, The first is hexagonal and 
lo 
a 
