Table 1.
Localities and sizes of the samples examined in this study. Sample numbers correspond to those in Fig. 1.
| Locality | Size | |
|---|---|---|
| Okinawa Group | 1. Iheyajima | 40 |
| 2. Izenajima | 36 | |
| 3. Iejima | 23 | |
| 4. Benoki (Okinawajima) | 51 | |
| 5. Katsu‐u (Okinawajima) | 6 | |
| 6. Nago (Okinawajima) | 20 | |
| 7. Nakagusuku (Okinawajima) | 39 | |
| 8. Chinen (Okinawajima) | 20 | |
| 9. Agunijima | 20 | |
| 10. Tokashikijima | 20 | |
| 11. Akajima | 18 | |
| 12. Tonakijima | 40 | |
| 13. Kumejima | 46 | |
| Southern Kyushu | 14. Yamagawa | 28 |
| Northern Ryukyus | 15. Kuchinoshima | 20 |
| Amami Group (central Ryukyus) | 16. Amamioshima | 15 |
| Southern Ryukyus | 17. Ishigakijima | 20 |
| Taiwan | 18. Taipei | 25 |