On the Affinity between Types and Formes of Auricula in Japanese People

Abstract

We have described the shape of auricle analysed in the following three traits: 1) the aspect of general contour ; 2) the form of lobule and 3) the form of beginning part of helix to the base of auricle. We classified the 1st trait in 4 types, A, B, C and D. The 2 nd trait in 3 forms, R, P and Q; the 3rd trait in 4 forms, 0, 1, 2 and 3.
The main object of the present study is to affirm the affinity between these types and forms and also to determine their hereditability. We failed, however, in this latter purpose; we could not calculate the percentage or penetrate rate of their hereditability. Regarding the affinity between types and forms we could determine their relative strength as follows:
(1) As for the 4 types of general contour of the auricle:
The greatest is the affinity between C-D, and the next is between B -D. The thirds are relation between A-C, and B-C: These two are nearly equal. The affinity between A-B is rather more feeble than the former two. The affinity between A-D is the weakest.
If we take the distance between C-D as 1, the distance between A-C, and B-C are 2, that of B-D is 1.4-1.5, and that of A-B is nearly 3.
(II) As for the 3 forms of lobules:
The affinity between P-Q is the greatest. The next is that between R-P. The distance R-Q is the farthest.
If we take the distance between P-Q as 1, the R-P 1-2, R. Q is (III) As for the 4 forms of the beginning part of helix:
We may safely say that 0, 1, 2 and 3 can be taken as 4 equidistant points on a straight line.