PLATE 107. 

 1-3. Echinus lucidus Dod. 



1. Side view of high, short-spined specimen. 



2. Side view of long-spined specimen. 



3. Side view of low, short-spined specimen. 



4-6. Lytechinus euerces, sp. nov. 



4. Abactinal view of type-specimen, partly denuded. 



5. Side view of same. 



6. Actinal view of same. 



7-11. Lytechinus anamesus, sp. nov. 



7. Abactinal view. 



8. Side view. 



9. Abactinal view of denuded test. 



10. Actinal view of same. 



11. Side view of same. 



12-14. Lytechinus pictus, comb. nov. 



12. Abactinal view of partly denuded specimen. 



13. Side view of same. 



14. Actinal view of same. 



All figures natural size. 



