Plate 57. 



1-3. Salenia cincta A. Ag. and CL 



1. Ambulacral view of a specimen somewhat inclined. 



2. Actinal view of partly denuded specimen. 



3. Abactinal view of same. 



4-6. CoBlopleurus xaaculatus A. Ag. and CI. 



4. Actinal view of medium-sized specimen. 



5. Abactinal view of same. 



G. Side view of same. 



All figures natural size. 



