EchinodermsLarvae. 



PI. XI. 



Th. Morlensen del. 



12. Heliocidaris tuberculata (Lamk.); 



3. Echinopluteus of Temnopleurid, sp. c. 



45. Echinobrissus rccens (M. Edw.). 



Oansk Ror. Anst. 



