PLATE 96. 

 1-3. Lytechinus dyscritus, sp. nov. 



1. Side view. X 5. 



2. Actinostome and base of corona. X 8. 



3. Abactinal system. X 8. 



4-6. Lytechinus callipeplus, sp. nov. 



4. Side view. X 5. 



5. Actinostome and base of corona. X 7. 



6. Abactinal system. X 8. 



