PLATE XXXII. 



Ana i. System of 



1, 2. Echinarachuius parma, copied from A. Agassiz. 



3. Discoidea cylindrica. copied from Cotteau. 



4. Echinoneus semilunarius, copied from A. Agassiz. 



5. Echinolampas Hellei, copied from A. Agassiz. 



6. Echinolampas depressa, copied from A. Agassiz. 



7. 8. Xeolampas rostellata. copied from A. Agassiz. 

 9. Palreobrissns Hilgardi, copied from A. Agassiz. 



10. Urechinus naresianus, copied from A. Agassiz. 



11. Hemiaster cavernosus, copied from A. Agassiz. 



12. Cystechinus Wyvillii, copied from A. Agassiz. 



13. Echinocardium fiavescens, copied from Love'n. 



