U. S. NATIONAL MUSEUM 



BULLETIN 82. PART 4A PLATE 39 



178, 182, Amphimetra discoidea: 17$, The type specimen from Port Denison, Queensland (U.S.N.M., 25453); 



1*2, same proximal pinnules, X 2. 



179, Amphimetra ensifer: Specimen from Singapore (U.S.N.M., K. 1083). 

 180, 181, Heterometra schlegelii: The type specimen from Japan (C. M.). 

 183, 184, Amphimetra spfctabilis: Proximal pinnules of specimen shown in fig. 177, X 2. 



