EXPLANATION OF PLATE XVII. 



Fig. 1. — Asterina atyphoida, sp. no v. Photograph of the 

 holotyjje from fifteen miles north-west of Cape Jervis, 

 South Austraha, 17 fathoms. Abactinal view. Four 

 times natural size. 



Fig. 2. — Actinal view of same specimen as Fig. I. 



