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PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 89 



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Figure 29. — a, Eyes of Digynopora americana, new genus and species, same specimen as 

 fig. 29, b; b, D. americana, from Pearse's whole mount No. 446, type; c, copulatory organs 

 of D. americana, from sections made of sexual region of specimen shown in fig. 29, b; d. 

 Dorsal view of copulatory complex of Planctoplanella atlantica, new genus and species. 

 (See p. 492 for index to numbered parts.) 



