1. A chondrosamine-containing glycolipid was isolated from lyophilized stroma of hog erythrocytes.
2. This is a peculiar glycolipid composed solely of chondrosamine as hexosamine component. Both galactose and glucose was found in the glycolipid, and lignoceric acid was also identified as its main fatty acid component.
3. Sphingomyelin was also isolated from stroma of hog erythrocytes, and was found to contain palmitic and lignoceric acid as the fatty acid component.
The author wishes to express his gratitude to Prof. S. Akiya and Dr. T. Ukita for encouragement. He thanks especially to Dr. T. Yamakawa for his helpful advice.
He also thanks to Miss. S. Suzuki, Miss. R. Ota, Miss. E. Kondo and Mr. B, Kurihara for chemical analyses.
The expences for the work were aided by the Scientific Fund, furnished by the Ministry of Education, for which the author wishes to express his gratitude.