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-G. Lytechinus euerces, sp. nov. 



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



5. Side view of same. 



G. Actinal view of same. 



7-11. Lytechinus anamesus, sp. nov. 



7. Ahactinal view. 



8. Side view. 



0. Ahactinal view of denuded test. 



10. .\ctinal view of same. 



1 1 . Side view of same. 



12-1 1. Lytechinus pictus, comh. nov. 



12. .\hactinal view of partly denuded specimen. 



13. Side view of .same. 



14. .\ctinal view of same. 



All figures natural size. 



