<正> Mr. T. H. Wang (1950), engaged in the study of the chemical composition of some marine zooplankton, which has long been used as a source of our accessory food, has kindly put some of the material at my disposal for identification in order to ascertain its contents. The material was collected by him from the coastal water of Fenghsien, about 14 miles from Shanghai, in the spring of 1950. It con-