70 A. E. Y err ill— New Genera and Species of Starfishes. 



The synactinal ossicles are smaller, with an oblong or ellipti- 

 cal surface, and mostly bear a single spine ; they extend only 

 to about the proximal third of the rays. 



The adambulacral spines stand two on a plate, or else in 

 certain parts one and two alternately, thus forming two or 

 three crowded rows. They are unequal, not very slender, the 

 inner ones slightly tapered, the outer ones stouter, blunt, as 

 long as the ventral spines, but more slender. They increase 

 somewhat in length and thickness toward the mouth. 



The two apical preoral spines are rather stouter and shorter 

 than the adorals ; their side spines are about half as long and 

 more slender. The epioral spines are like the adorals. 



The adoral carina is rather thick and stout, composed of 

 three pairs of contingent plates beyond the epiorals, the third 

 pair bearing two spines. 



Major pedicellarise of moderate size occur among the ven- 

 tral spines and on the lateral and dorsal surfaces, but are not 

 numerous.. They are compressed, lanceolate or acute-ovate, 

 with sharp tips. 



