U. S NATIONAL MUSEUM 



BULLETIN 82. PART 4A PLATE 2 



3, 4, (>, y.vgiimetra microdiscus: 3, Specimen with small proximal pinnules from Siboga station 273 (Amsterdam 

 Mus.); 4, dwarf, from Great Barrier Reef Expedition station XXIII, X 2 (B. M.); 6, proximal pinnules 

 of a specimen from Siboga station 273, X 2 (Amsterdam Mus.). 

 5, Zygometra elegans from Mermaid Strait, collected by the Gazelle (Berl. Mus.). 



