| Ref. | Description | Named Used | Page |
|---|---|---|---|
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. | Malacobdella japonica | |
| 907 | Iwata, F. 1954 The fauna of Akkeshi Bay. XX. Nemertini in Hokkaido (revised report). | Malacobdella japonica | 36 |