Key points are not available for this paper at this time.
J. M. Humphries, F. L. Bookstein, B. Chernoff, G. R. Smith, R. L. Elder, S. G. Poss, Multivariate Discrimination by Shape in Relation to Size, Systematic Zoology, Vol. 30, No. 3 (Sep., 1981), pp. 291-308
Humphries et al. (Tue,) studied this question.