PLATE XLII. 



Kgure 1. EcHiNOLAMPAS PLACENTAj Duncan and Sladen (page 264). Abactinal view. 



2. Actinal view. 



3. Linear longitudinal section. 



4. ScHizASTER Granti, Duncan and Sladen (page 268). Side view, showing shape, but 



not the details. 



5. Abactinal view. 



6. A large specimenj much worn, linear outline. 



