DEVONIAN FAUNAS. 299 
ECHINODERMATA. 
CRINOIDEA. 
ICTHYOCRINUS MAGNARADIALIS Nn. sp. 
Plate XXXIII., Fig..5. 
Description.—Caylx cup-shaped, truncated at the base, the sides 
flaring at an angle of about 58°. Underbasal plates not exposed. 
Basal plates large, sharply pointed above, the distal angles reaching 
nearly one-half the distance from the base to the tops of the radials. 
Radial plates large, pentagonal, about as broad as high, pointed below. 
A single costal, very much wider than high, follows the radial in each 
ray and supports two series of distichals above. Brachial plates not 
known above the second distichals. Anal and radianal plates absent. 
The dimensions of the type specimen are: height of calyx to top of 
radials, 6 mm.; diameter of calyx at top of radials, 11 mm.; height 
of costals at their lateral extremities, 1 mm.; width of costals, 6 mm. 
Remarks.—This species may be easily distinguished from all other 
heretofore-described species of the genus Icthyocrinus by its large 
basal and radial plates and the very short costals, it having more the 
aspect of members of the genus Lecanocrinus, but lacking the anal 
and radianal plates of that genus. This is the first recognition of a 
Helderbergian or Devonian species of the genus, it having previously 
been recognized only in the Niagaran faunas and in the much younger 
lower Mississippian faunas. 
MOLLUSCOIDEA. 
BRYOZOA. 
In some localities the lower, cherty beds of the New Scotland for- 
mation contain an abundance of bryozoans, belonging to several genera 
and species, but their condition of preservation is not satisfactory for 
proper study. 
