U. S. NATIONAL MUSEUM 



BULLETIN 76, PART 1 PL. 12 



1. FREYELLASTER FECUNDUS. 2. ASTROCLES ACTINODETUS. 3. CRATEROBRISI NGA SYNAPTOMA. 4. FREYELLA MICROPLAX. 



5, 6. Rathbunaster californicus 



For explanation of plate see paoe facing 



