| Phagocata kawakatsui Okugawa, 1956 | [with synonyms] | w | other research on this sp. | 56 |
| Phagocata teshirogi Ichikawa & Kawakatsu, 1962 | | w | other research on this sp. | 58 |
| Phagocata iwamai Ichikawa & Kawakatsu, 1962 | [with synonyms] | w | other research on this sp. | 60 |
| Phagocata papillifera (Ijima & Kaburaki, 1916) | [with synonyms] | w | other research on this sp. | 62 |
| Phagocata albata (Ichikawa & Kawakatsu, 1962) | [with synonyms] | w | other research on this sp. | 64 |
| Phagocata tenella Ichikawa & Kawakatsu, 1963 | | w | other research on this sp. | 66 |
| Polycelis akkeshi Ichikawa & Kawakatsu, 1963 | | w | other research on this sp. | 74 |
| Polycelis auriculata Ijima & Kaburaki, 1916 | | w | other research on this sp. | 68 |
| Polycelis schmidti (Zabusov, 1916) | | w | other research on this sp. | 70 |
| Polycelis (Polycelis) sapporo (Ijima & Kaburaki, 1916) | | w | other research on this sp. | |
| Sphalloplana (Sphalloplana) sp. (Mts. Yatsu-gadake) Ichikawa & Kawakatsu, 1967 | | - | other research on this sp. | 76 |
| Bdellocephala annandalei Ijima & Kaburaki, 1916 | | w | other research on this sp. | 80 |
| Bdellocephala brunnea Ijima & Kaburaki, 1916 | | w | other research on this sp. | 82 |
| Dendrocoelopsis ezensis Ichikawa & Okugawa, 1958 | [with synonyms] | w | other research on this sp. | 84 |
| Dendrocoelopsis lactea Ichikawa & Okugawa, 1958 | | w | other research on this sp. | 86 |