| Pseudaphanostoma psammophilum Dörjes, 1968 | Aug 1963 |  |  | very rare | 
| Coelogynopora forcipis Sopott-Ehlers, 1976 | Aug 1974 |  |  | at the low water line.  5 specimens. | 
| Coelogynopora forcipis Sopott-Ehlers, 1976 | Sep 1973 |  |  | at the low water line.  3 specimens. | 
| Philosyrtis rutilata Sopott-Ehlers, 1976 | Jun 1976 |  |  | At the low waterline.  4 specimens. | 
| Ciliopharyngiella intermedia Ax, 1952 | Jun 1969 |  | sand | numerous specimens.  sand slope within the NWL. | 
| Ciliopharyngiella intermedia Ax, 1952 | Mar 1971 |  | sand | numerous specimens.  sand slope within the NWL. | 
| Ciliopharyngiella intermedia Ax, 1952 | May 1971 |  | sand | numerous specimens.  sand slope within the NWL. | 
| Ciliopharyngiella intermedia Ax, 1952 | Sep 1973 |  | sand | numerous specimens.  sand slope within the NWL. | 
| Haloplanella longatuba Ax & Heller, 1970 | Mar, May 1971 |  | sand | In the damp sand of the ground water line, seaward of the upper Sublitorals.  Numerous. | 
| Proceropharynx litoralis Ehlers, 1972 | Sep 1973 |  | sand | Sand beach, with deep low tide in the area of the beach break. Numerous. | 
| Proceropharynx litoralis Ehlers, 1972 | Mar 1973 |  | sand | Sand beach, with deep low tide in the area of the beach break. Numerous. | 
| Proceropharynx litoralis Ehlers, 1972 | Jul 1974 |  | sand | Sand beach, with deep low tide in the area of the beach break. Numerous. | 
| Proceropharynx litoralis Ehlers, 1972 | Aug 1974 |  | sand | Sand beach, with deep low tide in the area of the beach break. Numerous. | 
| Adenorhynchus balticus Meixner, 1938 | Jun 1969 |  | sand | Sand slope.  Within the range of the NWL and in the lower slope.  Several specimens. | 
| Adenorhynchus balticus Meixner, 1938 | May 1971 |  | sand | Sand slope.  Within the range of the NWL and in the lower slope.  Several specimens. | 
| Adenorhynchus balticus Meixner, 1938 | Mar 1973 |  | sand | Sand slope.  Within the range of the NWL and in the lower slope.  Several specimens. | 
| Litucivis serpens Ax & Heller, 1970 | Mar 1973 |  |  | within the range of the NWL.  Seveal specimens. | 
| Listea simplex Ax & Heller, 1970 | Mar 1973 |  | sand | near the NWL.  Few specimens. | 
| Promesostoma serpentistylum Ax, 1952 | Mar, Sep 1973 |  |  | within the range of the NWL and in the following sublitoral.  Ove 200 specimens. | 
| Promesostoma serpentistylum Ax, 1952 | Jul, Aug 1974 |  |  | within the range of the NWL and in the following sublitoral.  Ove 200 specimens. | 
| Petaliella spiracauda Ehlers, 1974 | Mar, May 1971 |  |  | groundwater line and associated sublitoral.  Numerous. | 
| Petaliella spiracauda Ehlers, 1974 | Mar, Sep 1973 |  |  | groundwater line and associated sublitoral.  Numerous. | 
| Petaliella spiracauda Ehlers, 1974 | Jul, Aug 1974 |  |  | groundwater line and associated sublitoral.  Numerous. | 
| Messoplana falcata falcata (Ax, 1953) | Mar 1971 |  |  | Within the range of the NWL with strong low tide.  3 individuals. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Mar 1971 |  | medium-coarse sand | "Weststrand" (high energy beach).  Lower intertidal and upper sublittoral with medium to coarse sand. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | May 1971 |  | medium-coarse sand | "Weststrand" (high energy beach).  Lower intertidal and upper sublittoral with medium to coarse sand. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Mar 1973 |  | medium-coarse sand | "Weststrand" (high energy beach).  Lower intertidal and upper sublittoral with medium to coarse sand. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Jul 1975 |  | medium-coarse sand | "Weststrand" (high energy beach).  Lower intertidal and upper sublittoral with medium to coarse sand. | 
| Coelogynopora distortofolio Sopott, 1972 | May 1971 |  |  | Sylt.  Weststrand.  Mehrere Exemplare. | 
| Coelogynopora solifer Sopott, 1972 | May 1971 |  |  | Sylt.  Weststrand.  3 Exemplare. | 
| Dicoelandropora atriopapillata Ax, 1956 | Jun 1969 |  |  | Sylt.  Weststrand.  Einige Exemplare. | 
| Dicoelandropora atriopapillata Ax, 1956 | May 1971 |  |  | Sylt.  Weststrand.  Einige Exemplare. | 
| Notocaryoplanella glandulosa (Ax, 1951) | Jun 1969 |  |  | Sylt.  Weststrand.  Zahlreiche Exemplare. | 
| Notocaryoplanella glandulosa (Ax, 1951) | Nov 1969 |  |  | Sylt.  Weststrand.  Zahlreiche Exemplare. | 
| Notocaryoplanella glandulosa (Ax, 1951) | Jan 1970 |  |  | Sylt.  Weststrand.  Zahlreiche Exemplare. | 
| Parotoplana capitata Meixner, 1938 | Jun 1969 |  |  | Sylt.  Weststrand.  Mehrere Exemplare. | 
| Parotoplana capitata Meixner, 1938 | Nov 1969 |  |  | Sylt.  Weststrand.  Mehrere Exemplare. | 
| Parotoplana capitata Meixner, 1938 | May 1971 |  |  | Sylt.  Weststrand.  Mehrere Exemplare. | 
| Parotoplanina geminoducta Ax, 1956 | May 1971 |  |  | Sylt.  Weststrand.  An der Niedrigwasserlinie.  Mehrere Exemplare. | 
| Parotoplanina geminoducta Ax, 1956 | Jun 1969 |  |  | Sylt.  Weststrand.  An der Niedrigwasserlinie.  Mehrere Exemplare. | 
| Praebursoplana steinboecki Ax, 1956 | Jun 1969 |  |  | Sylt.  Weststrand.  An der Niedrigwasserlinie.  Einige Tiere. | 
| Praebursoplana steinboecki Ax, 1956 | May 1971 |  |  | Sylt.  Weststrand.  An der Niedrigwasserlinie.  Einige Tiere. | 
| Kataplana germanica (Meixner in Ax, 1951) | May 1971 |  |  | Sylt.  Weststrand.  An der Niedrigwasserlinie.  Einige Tiere. | 
| Nematoplana coelogynoporoides Meixner, 1938 | Jun 1969 |  |  | Weststrand.  Zahlreich. | 
| Nematoplana coelogynoporoides Meixner, 1938 | Nov 1969 |  |  | Weststrand.  Zahlreich. | 
| Nematoplana coelogynoporoides Meixner, 1938 | Jan 1970 |  |  | Weststrand.  Zahlreich. | 
| Nematoplana coelogynoporoides Meixner, 1938 | May 1971 |  |  | Weststrand.  Zahlreich. | 
| Polystyliphora filum Ax, 1958 | Jun 1969 |  |  | Weststrand.  An der Niedrigwasserlinie.  1 Exemplar. | 
| Zonorhynchus tvaerminnensis (Karling, 1931) | 1970 or earlier |  |  | Weststrand. |