MUSEUM OF COMPARATIVE ZOOLOGY. 79 



Clypeaster subdepressus Agass. 



Both the forms of this species were collected, the one the ordinary flat type, 

 the other the pentagonal type with swollen raised edge figured on Plate XP. of 

 the Revision of the Echini. 



Echinanthus rosaceiis Gray. 



Station 177. 118 fatlioms. Off Dominica. 

 " 276. 94 " " Barbados. 



Echinarachnius parma Gray. 



With the exception of Echinocyanius, and the young of Clypeaster subdepressus, 

 no Clypeaster has as yet been found to extend to the depth at which the "Blake" 

 dredged this species off Newport. 



Lat. 41° 30' 0" N., Long. 66° 0' 0" W. 

 " 41° 34' 30" N., " 65° 54' 30" W. 

 " 40° 10' 15" N., " 71° 4' 30" W. 

 " 40° 59' 0" N., " 71° 22' 30" W. 



Echinolampas depressa Gray. 



The specimens of this species collected in the West Indies during the winter of 

 1878-79 show that it attains a considerable size, althougli none of the specimens 

 dredged attain the size of E. oviformis. The largest specimen measured a little 

 over two inches in length. When alive, the color of the test with its spines is a 

 dirty greenish-yellow. 



Station 253. 92 fathoms. Off Grenada. 

 " 300. 82 " " Barbados. 



Conoclypus Sigsbei A. Ao. 



Among the specimens of this species collected by the "Blake" were three 

 small Echini, which for the present I may call the young of the above species, yet 



