| Promesostoma rostratum Ax, 1951 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Ptychopera tuberculata (Graff, 1882) | Nov 1963 |  |  | one specimen collected in the Puccinellietum maritimae, where it was associated with numerous Proxenetes puccinellicola Ax, Monocelis lineata (O.F. Müller) Vejdovskya halileimonia Ax and small numbers of some other species. | 
| Proxenetes puccinellicola Ax, 1960 | Nov 1963 |  |  | [Ptychopera tuberculata] collected in the Puccinellietum maritimae, where it was associated with numerous Proxenetes puccinellicola Ax, Monocelis lineata (O.F. Müller) Vejdovskya halileimonia Ax and small numbers of some other species. | 
| Monocelis lineata (Müller, 1773) | Nov 1963 |  |  | [Ptychopera tuberculata] collected in the Puccinellietum maritimae, where it was associated with numerous Proxenetes puccinellicola Ax, Monocelis lineata (O.F. Müller) Vejdovskya halileimonia Ax and small numbers of some other species. | 
| Vejdovskya halileimonia Ax, 1960 | Nov 1963 |  |  | [Ptychopera tuberculata] collected in the Puccinellietum maritimae, where it was associated with numerous Proxenetes puccinellicola Ax, Monocelis lineata (O.F. Müller) Vejdovskya halileimonia Ax and small numbers of some other species. | 
| Proxenetes flabellifer Jensen, 1878 | Apr 1963 |  |  | Salt-marsh. | 
| Proxenetes deltoides den Hartog, 1965 | Apr 1963 |  |  | salt-marsh. | 
| Proxenetes deltoides den Hartog, 1965 | Nov 1963 |  |  | salt-marsh.  Puccinellietum maritimae fauna on the salt-marsh. | 
| Proxenetes simplex Luther, 1948 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Proxenetes quadrispinosus den Hartog, 1966 | Apr 1963 |  | mud, fine sand | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom.  It seems to be a member of the still-water association of detritus rich fine sand. | 
| Proxenetes quadrispinosus den Hartog, 1966 | Nov 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Provortex balticus (Schultze, 1851) | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Monocelis fusca Örsted, 1843 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Proxenetes flabellifer Jensen, 1878 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Ptychopera westbladi (Luther, 1943) Den Hartog, 1964 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Provortex tubiferus Luther, 1948 | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Pogaina suecica (Luther, 1948) | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Promesostoma marmoratum (Schultze, 1851) | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Archilopsis unipunctata (Fabricius, 1826) | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Pseudostomum quadrioculatum (Leuckart, 1847) | Apr 23, 1963 |  |  | Salt-marsh creek.  Creek runs through the salt-marsh of Stavenisse, found in several samples taken from the muddy sand bottom. It seems to be a member of the still-water association of detritus rich fine sand. | 
| Proxenetes puccinellicola Ax, 1960 | Nov 20, 1963 |  |  | Salt-marsh. | 
| Coelogynopora schulzii Meixner, 1938 | Nov 20, 1964 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Ptychopera tuberculata (Graff, 1882) | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Vejdovskya halileimonia Ax, 1960 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Monocelis lineata (Müller, 1773) | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Monocelis fusca Örsted, 1843 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Proxenetes karlingi Luther, 1943 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Maehrenthalia dubia Ax, 1956 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Provortex balticus (Schultze, 1851) | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Mecynostomum auritum (Schultze, 1851) | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Provortex tubiferus Luther, 1948 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Macrostomum pusillum Ax, 1951 | Nov 20, 1963 |  |  | Puccinellietum maritimae fauna on the salt-marsh. | 
| Proxenetes karlingi Luther, 1943 | Nov 1963 |  |  | salt-marsh. |