| 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. |