198 Dr. H. Woodward—On some remarkable Cystideans. 
Anomalocystites (Ateleocystites 2?) balanoides, Meek. Part ii. vol. i. 
Geol. Surv. Ohio, 1873, p. 41, pl. 8 bis, figs. 6, a, b, ¢. 
“The only specimens of this fossil that I have seen are in a bad 
state of preservation, being distorted by pressure, and consisting 
only of the lower portions of the body, and:some of the extremely 
thin segments of the thickened part of the column connecting with 
the base of the same. One side of the body was evidently flat, or a 
little concave, and the other convex; and the entire outline, as seen 
on either of these sides, was probably oblong-suboval; while the 
lateral margins are distinctly carinated, at least toward the lower 
art. 
: “The surface is finely and obscurely granulo-striated, these 
markings showing a tendency to run longitudinally on the marginal 
pieces, and transversely (but much interrupted and broken up) 
on the middle pieces of the flat side. On the convex side they 
generally assume more the character of obscure irregular granules, 
excepting near the lower ends of the two lateral of the three 
principal pieces, where they become a little more regularly arranged, 
rather distinct, raised transverse lines. 
‘“‘The column was evidently comparatively very large at its con- 
nexion with the body, and composed of extremely thin pieces, that 
are not transverse, but (at least near the body) bent or deflected, so 
as to conform to the sinuous margins of the base of the body. It 
also seems probable that the habitual posture of the body, with 
relation to the column, was such that the two were not on a line 
with each other, but more or less flexed or bent, so that the column 
connected with the body obliquely, somewhat as in Eucheirocrinus 
(Chetrocrinus, Hall, 1860; not Hichwald, 1856). At least the much 
deeper sinus for the connexion of the column, in the lower range 
of pieces on the flat side, than on the convex, would favour such 
conclusion. ; 
“Length of body unknown, but it measures 0-93 inch in breadth, 
and about 6-40 inch in convexity, near the lower part; breadth of 
upper end of column, about 0:49 inch. 
‘Although this species is evidently closely allied to the genera 
Anomalocystites and A teleocystites, 1 am not positively sure that it 
would be found exactly congeneric with either, if we had the means 
of comparing its entire structure with that of the types of these 
groups, which are very closely related to each other. It certainly 
differs conspicuously, at least in its specific characters, from the 
typical and only known forms of these groups. In the first place, it 
is much larger than Anomalocystites cornutus, and has the middle 
two pieces of its lower range on the flat side proportionally longer— 
that is, longer than the marginal pieces, instead of the reverse. Its 
base is also more deeply sinuous on this side than in the New York 
species. On comparing its convex side with that of A. cornutus, we 
observe still more marked differences; the three principal plates of 
the lower range in our type being all decidedly longer than wide, 
instead of the reverse, and the middle plate considerably longer 
