U. S. NATIONAL MUSEUM 



BULLETIN 76, PART 2 PL. 16 



1. MYXODERMA PLATYACANTHUM RHOMALEUM. 2. M. PLATYACANTHUM. 3. PEDICELLASTER MAGISTER. 

 4. P. MAGISTER MEGALABIS. 5. P. MAGISTER ORIENTALIS 



For explanation of plate see page facing 



