Plate 80. 



Fig. 1. S plmlorullnu circiilaris. X -3. 1)5259. <;, front view; h. aiMTlural view. 

 2. Spiroloculina circularis. >( *J(J. D5259. Aperture. 



'i. Spirolorulina canaliculata. X 23. I)52(i(S. «. front view; ?>. apertural view. 

 A. Spiroloculina elegans. X 23. 1)5143. (/, front vii-w; />, apcrl iiral view. 

 5. Spiroloculinn planissima. X <><>• 1)5342. <i. front \ic\v; h, aperlural view. 

 182152—21 12 .5G9 



