Smithsonian Report. 1963. — Hay 



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Plate 1 



1. Electronmicrograph of a carbon replica of part of the surfaceof Ouiyiqueloculina seminulum 

 (Linnaeus), x 20,000 (from Hay, Towe, and Wright, 1962; micrograph by K. M. Towe). 







2. Electronmicrograph of a carbon replica of part of the surface of Ouinqueloculina seminulum 

 (Linnaeus) showing oriented cr\'stals, x 20,000 (from Hay, Towe, and Wright, 1962; 

 micrograph by K. M. Towe). 



