U. S. NATIONAL MUSEUM 



BULLETIN 82. PART 4B PLATE 33 



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170-173, Tropiumelra magnified: The type specimen from Mabahiss station 24 (B.M.). 170, Lateral view; 171, u 



cirrus; 172, proximal pinnules; 173, distal pinnule. 

 174, Tropiomelra afra ajra: Specimen from Siboga slaiimi l'>4 ( \ui-.iciil:iin \lus.). 



