302 THE CRINOIDEA CAMERATA OF NORTH AMERICA. 
extremely wide, the facets for the reception of the arms are surrounded by 
a raised angular edge, and the plates are covered with obscure radiating 
ridges or rows of small tubercles. 
Eucalyptocrinus Egani 8. A. Mruter. 
Plate LXXXII. Figs. 11 and 12. 
1880. S. A. Minter; Journ. Cincin. Soc. Nat. Hist., Vol. IIT., p. 140, Plate 4, Figs. 1 a-c. 
A very elongate species. Height and width of calyx as 8 to 5; height 
of dorsal cup, compared with the length of the arms, as 2 to 5; the length 
all 
measurements made from the casts. Dorsal cup a little higher than wide, 
of the neck-like prolongation to the tips of the partitions as 8 to 9 
obeonical, the bottom distinctly truncated and not excavated in the cast, 
the sides very slightly convex and projecting conspicuously over the sides 
of the disk. Radials nearly as long as wide. The first costals longer than 
wide, and narrower above than below; the second of the same length, and 
truncated by the interdistichals. Distichals a third smaller than the costals. 
First interbrachials almost twice as long as wide, widest at midway. Form 
of the remaining plates indeterminable. Ventral disk but slightly tapering, 
its upper margin curving abruptly to the base of the neck, which expands 
rapidly upwards. It rises apparently far beyond the arms, and tapers in size 
as rapidly as it increases below. 
Horizon and Locality. — Same as last, and the type specimens in the same 
collection. 
Eucalyptocrinus proboscidalis 8. A. Mitter. 
Plate LXX XII. Fig. 14. 
1882. S.A. Mmzer; Journ. Cincin. Soc. Nat. Hist., Vol. V., Plate 9, Fig. 2. 
Closely allied to the preceding species, but the calyx, to judge from the 
cast, still more elongate, being to the bse of the neck over twice as long as 
wide; the sides of the dorsal cup more convex; the tegmen higher propor- 
tionally, less depressed at the top, and more evenly rounded. The neck is 
more constricted in the middle, and more expanding at the summit, the tube 
succeeding it thicker at the base, and apparently longer, reaching in the 
type a length of 43 mm. by 12 mm. in width at the base, and 2 mm. at the 
upper end, tapering gradually. The plates of the dorsal cup, so far as 
observed, are long, especially the first interbrachials, which are more than 
