BATOCRINID A. 549 
pieces, with a larger one at each bifurcation. Anus located at midway be- 
tween the summit and the periphery. Column occupying two thirds the 
width of the base ; axial canal large and pentalobate. 
Horizon and Locality.— Hamilton group, Louisville, Ky. 
Types in the Knapp collection at New Providence, Ind. 
Remarks. —8. A, Miller, in his North American Geology and Palxon- 
tology, undertakes to reinstate Lyon’s prior name Actinocrinus cornigerus, 
which he changes into Genneoerinus corngerus. The species was originally 
described as Actinocrinus cornigerus, which Shumard, finding the name preoc- 
cupied by Hall, changed into Actinocrinus kentuckiensis, by which it is labeled 
in most of the collections. That the species was referred afterwards to a 
different genus, does not restore the former name. 
Gennzocrinus eucharis (Hatt), 
Plate XXXIV. Fig. 14. 
1862. Actinocrinus eucharis —Haun; 15th Rep. N. Y. State Cab. Nat. Hist., p. 130. 
1881. Gennwocrinus eucharis—W. and Sv.; Revision Paleocr., Part II., p. 161 (Proceed. Acad. Nat. Sci. 
Phila., p. 335). 
We were unable to obtain for examination typical specimens of this 
species, but from the description it appears to us that this form is very 
closely allied to Genneocrinus kentuckiensis, with which it, agrees in the form 
of the base, arrangement of the brachials, and the number of arms. Accord- 
ing to Hall, it is said to differ somewhat in the ornamentation. The ridges 
which traverse the ray form a sharp carina, with strong nodes on the first 
costals; while on the centres of all the other plates there are low angular 
nodes. Hall notices also a slight difference in the form of the dorsal cup, 
but this is not borne out by the description. We are inclined to regard this 
species as identical with the preceding one. 
Horizon and Locality. — Shales of the Hamilton group, Western New York. 
Type in the New York State collection at Albany. 
