| Mecynostomum auritum (Schultze, 1851) | June 1990 to May 1991 |  | medium sand |  | 
| Macrostomum curvituba Luther, 1947 | June 1990 to May 1991 |  | medium sand |  | 
| Coelogynopora schulzii Meixner, 1938 | June 1990 to May 1991 |  | medium sand |  | 
| Pseudosyrtis subterranea (Ax, 1951) | June 1990 to May 1991 |  | medium sand |  | 
| Coronhelmis multispinosus Luther, 1948 | June 1990 to May 1991 |  | medium sand |  | 
| Thalassoplanella collaris Luther, 1946 | June 1990 to May 1991 |  | medium sand |  | 
| Diascorhynchus lappvikensis Karling, 1963 | June 1990 to May 1991 |  | medium sand |  | 
| Placorhynchus octaculeatus Karling, 1931 | June 1990 to May 1991 |  | medium sand |  | 
| Placorhynchus dimorphis Karling, 1947 | June 1990 to May 1991 |  | medium sand |  | 
| Thylacorhynchus filostylis Karling, 1956 | June 1990 to May 1991 |  | medium sand | Gezeitensandstrand Dedesdorf.  Brackwasser der Wesermündung. | 
| Vejdovskya ignava Ax, 1951 | June 1990 to May 1991 |  | medium sand |  | 
| Haplovejdovskya subterranea Ax, 1954 | June 1990 to May 1991 |  | medium sand |  | 
| Baicalellia subsalina Ax, 1954 | June 1990 to May 1991 |  | medium sand |  |