| 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. |