Amemiyaia pacifica | 1944 or earlier | | | |
Hoploplana ornata | June 1937 | | | This splendid Hoploplana is commonly found on the undersurface of stones between the tidemarks at Zuirin-ji. |
Planocera reticulata | June 1937 | | | This species is very common in this district. |
Pseudostylochus meridialis | June 1937 | | | Two specimens were collected under stones in a muddy beach near Zuirin-ji. |
Pseudoceros memoralis | Jun 1937 | | | two individuals living on the undersurface of stones below the medium tidemark at Tusi-jima. |
Prosthiostomum auratum | Jun 1937 | | | single specimen found at Zuirin-ji. |
Prosthiostomum vulgaris | Jun 1937 | | | widely distributed collected at Tomioka. |
Prosthiostomum sonorum | Jun 1937 | 18.2 m | | A single specimen of this species was collected by the dredge along with some corals from a depth of 10 fathoms off Tomoe-zaki. |
Cryptocelis amakusaensis | 1937 or earlier | | | common on the sandy beach in the vicinity of the Laboratory during spring and summer, and often attacks the living periwinkle, Umbonium moniliferum to put to death. |
Notoplana delicata | 1944 or earlier | | | |
Notoplana serica | 1937 or earlier | | | |
Hoploplana ornata | 1944 or earlier | | | Tomioka, Amakusa. |
Planocera multitentaculata | 1944 or earlier | | | Usually found together with Planocera reticulata. |
Cestoplana marina | 1944 or earlier | | | Tomioka, Amakusa. A single specimen. |
Pseudoceros sagamianus | 1944 or earlier | | | Found on Gelidium. |
Prosthiostomum grande | 1944 or earlier | | | |