| japan | akita prefecture | monodonta perplexa | species | 19 | 0 |
| japan | akita prefecture | monodonta perplexa perplexa | subspecies | 4 | 0 |
| japan | hokkaido prefecture | monodonta perplexa perplexa | subspecies | 3 | 0 |
| japan | kagoshima prefecture | monodonta perplexa | species | 74 | 0 |
| japan | kagoshima prefecture | monodonta perplexa perplexa | subspecies | 23 | 0 |
| japan | miyagi ken prefecture | monodonta perplexa | species | 9 | 0 |
| japan | nagasaki prefecture | monodonta perplexa | species | 11 | 0 |
| japan | nagasaki prefecture | monodonta perplexa perplexa | subspecies | 11 | 0 |
| japan | niigata prefecture | monodonta perplexa perplexa | subspecies | 7 | 0 |
| japan | okinawa prefecture | monodonta perplexa | species | 8 | 0 |
| japan | okinawa prefecture | monodonta perplexa perplexa | subspecies | 8 | 0 |
| japan | osaka prefecture | monodonta perplexa perplexa | subspecies | 3 | 0 |
| japan | shizuoka prefecture | monodonta perplexa | species | 27 | 0 |
| japan | shizuoka prefecture | monodonta perplexa perplexa | subspecies | 9 | 0 |
| japan | tokyo prefecture | monodonta perplexa | species | 18 | 0 |
| japan | tokyo prefecture | monodonta perplexa boninensis | subspecies | 5 | 0 |
| japan | tokyo prefecture | monodonta perplexa perplexa | subspecies | 30 | 0 |
| japan | tottori prefecture | monodonta perplexa perplexa | subspecies | 1 | 0 |
| japan | toyama prefecture | monodonta perplexa | species | 2 | 0 |
| japan | wakayama prefecture | monodonta perplexa | species | 13 | 0 |
| japan | wakayama prefecture | monodonta perplexa perplexa | subspecies | 3 | 0 |
| taiwan | taipei municipality | monodonta perplexa | species | 20 | 0 |