Nippon 1 4,765.03 99,373.57 Isles adjacent to Nippon 167 1,275.09 470.30 Shikoku 1 1,100.85 6,461.39 Isles adjacent to Shikoku 75 548.12 175.40 Kiushiu 1 2,101.28 13,778.68 Isles adjacent to Kiushiu 150 2,405.06 1,821.85 Yezo 1 1,423.32 30,148.41 Isles adjacent to Yezo 13 110.24 30.51 Sakhalin (Karafuto) 1 Unsurveyed 12,487.64 Sado 1 130.05 335.92 Okishima 1 182.27 130.40 Isles adjacent to Okishima 1 3.09 0.06 Awaji 1 94.43 217.83 Isles adjacent to Awaji 1 5.32 0.83 Iki 1 86.47 50.96 Isles adjacent to Iki 1 4.41 0.47 Tsushima 1 409.23 261.72 Isles adjacent to Tsushima 5 118.80 4.58 Riukiu (or Luchu) Islands 55 768.74 935.18 Kuriles (Chishima) 31 1,496.23 6,159.42 Bonin (Ogasawara Islands) 20 174.65 26.82 Taiwan (Formosa) 1 731.31 13,429.31 Isles adjacent to Formosa 7 128.32 Not surveyed Pescadores (Hoko-to) 12 98.67 85.50 --- --------- ---------- Totals 549 18,160.98 173,786.75 If the various smaller islands be included, a total of over 3000 is reached, but there has not been any absolutely accurate enumeration. [Illustration: Map of Japan and Korea.]