U. S. NATIONAL MUSEUM 



BULLETIN 82. PART 4A PLATE 21 



82-84, Heteroniftra savignii: 82, 83, Specimen from the Red Sea, X 2 (U.S \'.M., 55081); 84, proximal pin- 

 nules of another specimen from the Red Sea, X 2 (U.S.N.M., 35213). 



