Note on the structure of the maxillary gland of Cypridina hilgendorfii

FIGUItESWhile at Misaki in the summer of 1900 I undertook, at the suggestion of Professor Watase, a study on the ostracods with especial reference to the cytology of the luminous glands.In thc winter of 1900-1901 quite a number of specimens were cut into sections and several sketches were made.But my going to .Ainerica obliged me to suspend the work.Last summer ('16) 1X.Harvey of Princeton University came over to Japan and carried out at the Misaki I3iologic.alStation biochemical oxperinients upon the luminous substance formed in the niaxillary gland of Cypridina hilgendorfii.In connection with his study it, may be of soiiie intercst to publish the results of my observation on the morphology of the gland carried out sixteen years ago.