of the Manchurian sub-region, 227

fresh-water, table of Palæarctic families of, 227

of the Ethiopian region, 255

of South Africa, 268

fresh-water, table of Ethiopian families of, 298

fresh-water, of the Oriental region, 318

of the Indo-Malay sub-region, 341

fresh-water, table of Oriental families of, 369

fresh-water, of the Australian region, 397

fresh-water, resemblance of Australian and S. American, 400