| Philactinoposthia saliens (Graff, 1882) | Sep 1963 | | mud sand | |
| Mecynostomum auritum (Schultze, 1851) | Oct 1962 | | mud sand | |
| Promesostoma cochleare Karling, 1935 | Jul 1970 | | sand | transitional sand flat, sand slope. Several specimens. |
| Promesostoma rostratum Ax, 1951 | Jul 1970 | | sand | Arenicola sand flat with Zostera. |
| Promesostoma gracilis Ax, 1951 | Jul 1970 | | sand | Arenicola sand flat. A few individuals. |
| Promesostoma meixneri Ax, 1951 | May 1969 | | sand | Detritus rich sand flat. Some individuals. |
| Promesostoma meixneri Ax, 1951 | Jul 1970 | | sand | Detritus rich sand flat. Some individuals. |
| Promesostoma meixneri Ax, 1951 | Sep 1973 | | sand | Detritus rich sand flat. Some individuals. |
| Promesostoma caligulatum Ax, 1952 | Jul 1970 | | sand | Arenicola sand flat. Few specimens. |
| Promesostoma bipartitum Ax, 1956 | Jul 1970 | | sand | Flat sand bank in sand flat; middle sand beach slope. Few individuals. |
| Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 | Jul 1970 | | sand | Arenicola- sand Watt. 2 specimens. |
| Messoplana falcata falcata (Ax, 1953) | Jul 1970 | | sand | Arenicola- sand Watt. 3 specimens. |
| Mariplanella frisia Ax & Heller, 1970 | Jul 1970 | | sand | Arenicola-sandwatt. 2 specimens. |