| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | Triglochin on muddy sand. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | salt marsh with cushions of Vaucheria. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | high marsh sediment. | 
| Macrostomum hystricinum Beklemischev, 1951 | Aug-Sep 1984 |  | mud | Mud of the lower salt marsh border. | 
| Monocelis sp. Ax & Armonies, 1987 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand (common). | 
| Monocelis sp. Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | high marsh sediment. | 
| Monocelis sp. Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | salt marsh sediment with cushions of Vaucheria (common). | 
| Promesostoma rostratum Ax, 1951 | Aug-Sep 1984 |  | mud | mud with Corophium. | 
| Promesostoma rostratum Ax, 1951 | Aug-Sep 1984 |  | muddy sand | green algal mats on muddy sand. | 
| Pratoplana salsa Ax, 1960 | Aug-Sep 1984 |  | muddy sand | Northern Harbor.  Triglochin on muddy sand. | 
| Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 | Aug-Sep 1984 |  |  | Salt marsh sediment with cushions of Vaucheria. | 
| Proxenetes deltoides den Hartog, 1965 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Proxenetes deltoides den Hartog, 1965 | Aug-Sep 1984 |  |  | salt marsh sediment with cushions of Vaucheria. | 
| Prognathorhynchus eurytuba Ax & Armonies, 1987 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Prognathorhynchus sp. Ax & Armonies, 1987 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Placorhynchus echinulatus Karling, 1947 | Aug-Sep 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Provortex sp. Ax & Armonies, 1987 | Aug-Sep, 1984 |  | muddy sand | Triglochin on muddy sand. | 
| Provortex sp. Ax & Armonies, 1987 | Aug-Sep, 1984 |  |  | salt marsh sediment with cushions of Vaucheria. |