Stylochoplana suoensis Kato, 1943 | 1943 or earlier | | | Commonly found living on eel grasses, Zostera and Phyllospadix. |
Stylochoplana utinomii Kato, 1943 | 1943 or earlier | | | Commonly found living on eel grasses, Zostera and Phyllospadix. |
Paraplanocera oligoglena (Schmarda, 1859) | 1944 or earlier | | | |
Prosthiostomum formosum Kato, 1943 | 1943 or earlier | | | Suo, Formosa. |
Enchiridium japonicum Kato, 1943 | 1943 or earlier | | | Suo, Formosa. |
Dugesia japonica ryukyuensis Kawakatsu, 1976 | 1976 or earlier | | | Taiwan, Middle China, and the Ryukyu Islands and the Amani Islands of Southwest Japan |
Dugesia japonica japonica Ichikawa & Kawakatsu, 1964 | 1976 or earlier | | | Hong Kong, Taiwan, North China, Korea, and Japan except for the Ryukyu Islands. |