Collecting site
Arcachon Bay (Bassin d'Arcachon), Petit Nice, French Atlantic Coast, France
detritus and sand flats
latitude: 44.700001 44°42'0"N
longitude: -1.15 1°9'0"W
[Precision of location: Alexandria Digital Library (with NGA GNDB data)]
[Site Named Here by name of island, bay, strait, lake, river, or stream, etc., named in source publication]
Collected here:
| 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 |