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Collection date: Aug 1970
Kind: type locality
Comments: In the supralittoral of the beach slope; 7 m above the MHWL. 10-75 cm below the sand surface (groundwater 155 cm). 16 specimens.
Nielönn, north of Kampen, Sylt Island, Germany, North Sea
Collection date: 1982-1983
Comments: salt meadow. 3 individuals.