沙流アイヌの血液型について(<特集>沙流アイヌの共同調査報告)(金田一京介博士古稀記念)

抄録

Regarding the A-B-O blood groups of the Ainu, the results of the examinations have been reported by NINOMIYA, E. F. GROVE, etc. In August, 1951, the present author investigated the A-B-O blood groups and M-N blood types of 337 Saru Ainu, and examined the S blood types (secretor and nonsecretor) of saliva. The frequency distributions of these blood groups are as follows ; A-B-O blood groups : O-20.8±2.21, A-33.1±2.56 B-31.1±2.52, AB-13.9±1.88 M-N blood types : M-13.9±1.88, N-37.4±2.63 MN-48.7±2.72, S blood types : S-71.5±2.46, S-28.5±2.46 It is characteristic of the Ainu that they have a high frequency of type N, as is stated in the memoir of KUBO and his co-workers. It is an anthropologically interesting fact that the Australian aborigines, Papuans, and Ainu, all of whom are isolated from other races, have been known for their extremely high frequency of type N.