PLATE 4. 



Hymenaster cremnodes H. L. Clark. Holotype from Station 4658. 



1 . Seen from the side . X 2 . 



Zoroaster perarmatus H. L. Clark. Holotype from Station 4653. 



2. Upper surface. Nat. size. 



Stylasterias paschae H. L. Clark. Holotype from Easter Island. 



3. Upper surface. Nat. size. 



