Pogaina arcassonensis Ehlers & Sopott-Ehlers, 1989 | September , October 1974 | littoral | sand | detritus on sand flats, numerous specimens. |
Parotoplana bicupa Sopott-Ehlers, 1976 | Sep 1974 | | sand | several individuals. |
Omalostomum dubium de Beauchamp, 1927 | prior to 1927 | | sand | |
Schizorhynchus arenarius de Beauchamp, 1927 | 1927 or earlier | | | |
Cheliplana vestibularis de Beauchamp, 1927 | 1927 or earlier | | | Arcachon. Diotomeensand. Marin. |
Cheliplana glandulosa de Beauchamp, 1927 | 1927 or earlier | | | |
Thylacorhynchus arcassonensis de Beauchamp, 1927 | 1927 or earlier | | | |
Cicerina tetradactyla Giard, 1904 | 1927 or earlier | | | |
Idiostylochus tortuosus Gutierrez, Auby, Gouillieux, Daffe, Masse, Antajan, & Noreña, 2023 | Oct 20, 2020 | | | 1 specimen |