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