78 SS. Lyon and 8. A. Casseday on new species of Crinoidea. 
Onychocrimus exculptus, n. s. 
Calyx vasiform, spreading rapidly to the base of the free arms, to 
gether. with the arms resembles much the talons of a bird, whence its — 
generic name; surface ornamented with minute granules. 
pieces, three; their under surfaces concave, forming a saucer 
asal , forming 
shaped depression, which was wholly filled by the column; they are low, | 
rather thick, upper surfaces prolonged into an obtuse angle; the column 
facet marked by small short striz on the outer margin. 
Subradials, five ; large, four are pentagonal, two of which are larger 
projections, similar to those fo some species orbesiocrinus, (a 
described by Hall as patelloid pieces,) which fit into corresponding de 
pressions in the adjoining pieces, 
throughout their whole length, the pinnule becoming smaller and more 
first two radials of each row, followed by three pieces about half the size 
oO an 
smaller pentagonal pieces; then follow (in the specimen we have before a 
f a hemispherica arch, depressed towards the dise of the stomach, the — 
sides of the arch being extended up along the radials and brachials as fa _ 
k ae 
* See also under description of Vault. 
