| Parent | Category | Figures | |
|---|---|---|---|
| 1 | Rattus | norvegicus | 724 |
| 2 | Rattus | lutreolus | 19 |
| 3 | Rattus | fuscipes | 19 |
| 4 | Rattus | tanezumi | 18 |
| 5 | Rattus | rattus | 14 |
| 6 | Rattus | andamanensis | 11 |
| 7 | Rattus | satarae | 3 |
| 8 | Rattus | tiomanicus | 2 |
| 9 | Rattus | nitidus | 2 |
| 10 | Rattus | villosissimus | 1 |
| 11 | Rattus | adustus | 1 |
| 12 | Rattus | annandalei | 1 |
| 13 | Rattus | exulans | 1 |
| 14 | Rattus | leucopus | 1 |
| 15 | Rattus | losea | 1 |