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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 89 



Figure 30. — a, Planctoplanella atlantica, new genus and species, type; h, eyes of P. atlantica, 

 same specimen as fig. 30, a; c, copulatory complex of P. atlantica, from sagittal sections 

 made from sexual region of specimen shown in fig. 30, a. (See p. 492 for index to numbered 

 parts.) 



