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. Ccelopleurus maculatus A. Ag. and CI. 



4. Actinal view of medium-sized specimen. 



5. Abactiual view of same. 



C. Side view of same. 



All figures natural size. 



