214 THE CRINOIDEA CAMERATA OF NORTH AMERICA. 



cup; the mouth quite excentric, and the posterior ambulacra considerably 

 longer. 



Horizon and Locality. — Same as last. 



T^pe in the collection of W. and Sp. 



Remarks. — This species IkS readily distinguished from the preceding 

 species by having but two arms to the ray from the calyx, which, however, 

 may branch in their free state. 



