| author | date | title | journal / publication | Kawakatsu M, Teshirogi W, Tsushima K | 1970 | Report on the ecological survey of freshwater planarians in the Natsudomari Peninsula and the western part of the Shimokita Peninsula, Honshu. | Bull. Fuji Women's Coll 8: 115-125 |
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| Dugesia japonica Ichikawa & Kawakatsu, 1964 | [with synonyms] | w | other research on this sp. | |
| Phagocata vivida (Ijima & Kaburaki, 1916) | [with synonyms] | w | other research on this sp. | |
| Polycelis auriculata Ijima & Kaburaki, 1916 | w | other research on this sp. | ||
| Polycelis (Polycelis) sapporo (Ijima & Kaburaki, 1916) | w | other research on this sp. | ||
| Phagocata teshirogi Ichikawa & Kawakatsu, 1962 | w | other research on this sp. | ||
| Dendrocoelopsis lactea Ichikawa & Okugawa, 1958 | w | other research on this sp. |