Hofstenia atroviridis | Jun, Jul 1914 | shallow, surf zone | | Exposed coast. Slow acting animal found in shallows of ebbing tide, in tide pools, and at greater depth between Laminaria roots. Found between Corallina- Bestaenden. |
Neostylochus fulvopunctatus | prior to 1920 | intertidal | | |
Otocelis rubropunctata | prior to 2004 | | | |
Amphiscolops sp. | prior to 1965 | | | |
Convoluta sp. | prior to 1965 | | | |
Paramecynostomum diversicolor | prior to 2004 | | | |
Vorticeros lobatum | 1918 or earlier | | | |
Vorticeros ijima | 1918 or earlier | | | |
Leptostylochus ovatus | Sep 25, 1930 | | | single specimen obtained from the undersurface of stone between tidemarks at Araibama. |
Discostylochus yatsui | May 15, 1933 | | | collected on the underside of stone in the tidal zone at Araibama. |
Cryptophallus eximius | Jul 26, 1930 | | | single specimen collected under the stone near the low tidemark at Bentensita. |
Stylochoplana clara | 1930-1936 | | | species is commonly found living on Zostera and Phyllospadix all year round. |
Paraplanocera rubrifasciata | Sep 9, 1932 | 27.4 m | | single specimen dredged from a depth of 15 fathoms off Hutamatiya. |
Pseudoceros sagamianus | Apr 6, 1935 | | | single specimen collected at Bentensita. |
Prosthiostomum auratum | Aug 28, 1936 | | | found creeping on Phyllospadix. |
Prosthiostomum purum | 1932 | 27.4 m | | six specimens collected in the autumn from a depth of 15 fathoms off Hutamatiya. |
Prosthiostomum yerii | Sep 7, 1932 | 27.4 m | | one specimen from a depth of 15 fathoms off Hutamatiya. |
Discocelis japonica | 1937 or earlier | | | |
Stylochoplana pusilla | 1938 | | | This species is a small parasitic form, found in the mantle cavity of Monodonta labio. Also harbours in the mantle cavity of Cellana toreuma. |
Pseudostylochus takeshitai | 1938 or earlier | | | |
Planocera reticulata | 1932-1933 | | | found in abundance in this district and Misaki all the year round; multi-tenticular forms often occur. |
Discocelis fulva | 1944 or earlier | | | Misaki; Susaki. Common under stones between tidemarks in summer. |
Stylochus ijimai | 1944 or earlier | | | Misaki. |
Leptostylochus gracilis | 1944 or earlier | | | |
Cryptocelis ijimai | 1944 or earlier | | | |
Notoplana delicata | 1944 or earlier | | | |
Notoplana japonica | 1944 or earlier | | | |
Discoplana takewakii | 1944 or earlier | | | |
Zygantroplana clepeasta | 1938 | | | two specimens found on Clepeaster japonicus Döderlein by Dr. K. Takewaki in the summer of 1938. |
Hoploplana ornata | 1944 or earlier | | | Misaki. |
Planocera purpurea | 1944 or earlier | | | |
Planocera profunda | 1944 or earlier | 32-36 m | | |
Planocera multitentaculata | 1944 or earlier | | | Usually found together with Planocera reticulata. |
Paraplanocera oligoglena | 1944 or earlier | | | |
Callioplana marginata | 1944 or earlier | | | |
Pseudostylochus obscurus | 1944 or earlier | | | |
Pseudostylochus fulvus | 1944 or earlier | | | |
Thysanozoon brocchii | 1944 or earlier | | | |
Thysanozoon vulgaris | 1944 or earlier | | | |
Pseudoceros flavomarginatus | 1944 or earlier | | | |
Pseudoceros reticulatus | 1944 or earlier | | | |
Pseudoceros gratus | 1944 or earlier | | | |
Pseudoceros sagamianus | 1944 or earlier | | | |
Pseudoceros nipponicus | 1944 or earlier | | | Misaki. |
Cycloporus japonicus | 1944 or earlier | | | commonly found on compound ascidians. |
Chromoplana bella | 1944 or earlier | | | |
Amyella lineata | 1944 or earlier | | | |
Prosthiostomum rubropunctatum | 1944 or earlier | | | |
Prosthiostomum ostreae | 1944 or earlier | | | found on cultivated oyster-shells. |