92 ALLAN HANXOCK PACIFIC EXPEDITIONS VOL.3 



PLATE 12 



Fig. 32. Chartoceros radicans Schiitt. 



32a. Part of chain more highly magnified. Upper part, narrow girdle 



view; lower part, broad girdle view. 

 32b. Valve view of a cell. 



Fig. 3 3. Chaclocfios socialis Laud. 



