Huxley, T. H.On the Geographical Distribution of the Chief Modifications of Mankind (1870) Journal of the Ethnological Society of London. Huxley indicates that he has omitted certain areas with complex ethnic compositions that do not fit into his racial paradigm, including much of the Indian subcontinent and Horn of Africa. (Huxley, Thomas (1873). Critiques and Addresses by Thomas Henry Huxley, LL.D., F.R.S. Macmillan and Company. p. 153.) By the late nineteenth century, his Xanthochroi group had been redefined as the Nordic race, whereas his Melanochroi became the Mediterranean race. As such, Huxley's Melanochroi eventually also comprised various other dark Caucasoid populations, including the Hamites and Moors. (Gregory, John Walter (1931). Race as a Political Factor. Watts & Company. p. 19. Retrieved 8 May 2016.)