S. Lyon and 8. A. Casseday on new species of Crinoidea. 239 
radials rise two radials of the second series: on each of these the rib 
again bifurcates. Each of these last pieces bear two others; on those 
nearest each other the rib again bifurcates, each branch of the first bifur- 
cation thus bearing three ribs, which are here joined to the free arms. 
Interradial pieces. Generally from three to seven, they are disposed as 
follows: first, a large hexagonal one succeeded. by two nearly equal to it 
in size, also hexagonal, then follow sometimes two, three or four, differing 
in form, these again are followed by a number of small hexagonal 
eces 
Anal pieces, seven to sixteen: the first of the series is hexagonal, in the 
same circle with the first radials, equal to them in size and having the 
ament, this piece is followed by two others as in the interradial 
fields, except that the pieces are generally smaller. Upon these succeed 
four, sometimes more, which are followed by three regular and a cluster 
of four petal-like pieces with one to the right of the cluster completing 
e row. The ornature of all these pieces is the same as on those already 
ese larger pieces, On the anal side the vault is more convex than on 
either of the other sides, it is covered by about twenty-five or thirty small 
i ieces composing the 
Peas 
