1. 
PLATE 3. 
a. > 
Hymenaster trias H. L. Clark. Holotype from Station 4672. 
Upper surface. ’ . 
Lower surface. 
. 
Litonotaster tumidus H. L. Clark. Paratypes from Station 
Upper surface of a long-rayed specimen. 
Lower surface of same. 
Upper surface of a short-rayed specimen. 
Lower surface of same. 
