| Macrostomum hamatum Luther, 1947 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the upper intertidal. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  |  | brackish water bay. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  | medium-fine sand | upper intertidal. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  | medium-coarse sand | with detritus, middle tidal range. | 
| Macrostomum burti Ax & Armonies, 1987 | Aug-Sep 1984 |  | medium-fine sand | and muddy sand next to a fresh water inlet. | 
| Macrostomum hystricinum Beklemischev, 1951 | Aug-Sep 1984 |  | fine-medium sand | brackish water bay.  Upper intertidal. | 
| Monocelis sp. Ax & Armonies, 1987 | Aug-Sep 1984 |  | fine to medium sand | brackish water bay.  Intertidal medium to fine sand. | 
| Minona baltica Karling & Kinnander, 1953 | Aug-Sep 1984 |  | mud | brackish water bay.  Mud next to a freshwater inlet. | 
| Minona baltica Karling & Kinnander, 1953 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand in the upper intertidal. | 
| Promesostoma marmoratum (Schultze, 1851) | Aug-Sep 1984 |  |  | brackish water bay.  Deposited green algal mats. | 
| Promesostoma marmoratum (Schultze, 1851) | Aug-Sep 1984 |  | sandy mud | brackish water bay.  next to a freshwater outlet. | 
| Promesostoma marmoratum (Schultze, 1851) | Aug-Sep 1984 |  |  | floating algal mats and green algae deposited on the shore. | 
| Promesostoma meixneri Ax, 1951 | Aug-Sep 1984 |  | medium-coarse sand | upper intertidal. | 
| Proxenetes unidentatus den Hartog, 1965 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the shore zone. | 
| Beklemischeviella angustior Luther, 1943 | Aug-Sep 1984 |  | fine-medium sand | brackish water bay.  Green algal mats on sediment. | 
| Beklemischeviella angustior Luther, 1943 | Aug-Sep 1984 |  | medium-coarse sand | Intertidal, medium to coarser sand with detritus. | 
| Beklemischeviella angustior Luther, 1943 | Aug-Sep 1984 |  | medium-coarse sand | brackish water bay.  shore zone next to a freshwater inlet. | 
| Beklemischeviella angustior Luther, 1943 | Aug-Sep 1984 |  | mud | brackish water bay.  next to a freshwater inlet. | 
| Haloplanella curvistyla Luther, 1946 | Aug-Sep 1984 |  | muddy sand | brackish water bay.  Algal mats on muddy sand. | 
| Haloplanella curvistyla Luther, 1946 | Aug-Sep 1984 |  | medium sand | brackish water bay.  medium sand rich in detritus of the shore zone. | 
| Haloplanella curvistyla Luther, 1946 | Aug-Sep 1984 |  | sandy mud, mud | brackish water bay.  sandy mud and mud besides a fresh-water inlet. | 
| Haloplanella curvistyla Luther, 1946 | Aug-Sep 1984 |  |  | brackish water bay.  floating algal mats and green algae settled on the shore. | 
| Haloplanella curvistyla Luther, 1946 | Aug-Sep 1984 |  | sand | brackish water bay.  sand of the upper intertidal. | 
| Thalassoplanella collaris Luther, 1946 | Aug-Sep 1984 |  | muddy sand | brackish water bay.  Algal mats on muddy sand. | 
| Thalassoplanella collaris Luther, 1946 | Aug-Sep 1984 |  | fine-medium sand | brackish water bay.  upper intertidal, fine to medium sand and medium sand rich in detritus. | 
| Thalassoplanella collaris Luther, 1946 | Aug-Sep 1984 |  | medium-coarse sand | brackish water bay.  intertidal, medium to coarse sand with detritus. | 
| Thalassoplanella collaris Luther, 1946 | Aug-Sep 1984 |  | sandy mud | brackish water bay.  sandy mud next to a freshwater inlet. | 
| Parautelga bilioi Karling, 1964 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the upper intertidal. | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  | muddy sand | brackish water bay.  Algal mats on muddy sand. | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  | fine-medium sand | brackish water bay.  upper intertidal, medium to fine sand. | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  | medium-coarse sand | brackish water bay.  intertidal, medium to coarse sand with detritus. | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  | mud, sandy mud, fine-medium sand | brackish water bay.  mud, sandy mud, and fine to medium sand next to a freshwater inlet. | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  |  | brackish water bay.  floating algal mats and green algae deposited on the shore | 
| Acrorhynchides robustus (Karling, 1931) | Aug-Sep 1984 |  | sand | brackish water bay.  sand of the upper intertidal. | 
| Phonorhynchus helgolandicus (Metschnikow, 1865) | Aug-Sep 1984 |  |  | brackish water bay.  Green algal mats. | 
| Phonorhynchus helgolandicus (Metschnikow, 1865) | Aug-Sep 1984 |  | medium-coarse sand | brackish water bay.  intertidal medium to coarse sand with detritus. | 
| Placorhynchus octaculeatus Karling, 1931 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the upper intertidal. | 
| Placorhynchus dimorphis Karling, 1947 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the upper intertidal. | 
| Placorhynchus dimorphis Karling, 1947 | Aug-Sep 1984 |  | fine-medium sand | brackish water bay.  fine to medium sand next to a freshwater inlet. | 
| Placorhynchus dimorphis Karling, 1947 | Aug-Sep 1984 |  | mud, sandy mud | brackish water bay. | 
| Placorhynchus echinulatus Karling, 1947 | Aug-Sep 1984 |  | sand | brackish water bay.  Sand of the upper intertidal. | 
| Baicalellia brevitubus (Luther, 1918) | Aug-Sep, 1984 |  |  | brackish water bay.  Lower border of the salt marsh. | 
| Baicalellia brevitubus (Luther, 1918) | Aug-Sep, 1984 |  | fine-medium sand | brackish water bay. fine to medium sand of the upper intertidal with freshwater influx. | 
| Baicalellia canadensis Ax & Armonies, 1987 | Aug-Sep, 1984 |  | fine-medium sand | brackish water bay.   Upper intertidal, medium to fine sand. | 
| Baicalellia canadensis Ax & Armonies, 1987 | Aug-Sep, 1984 |  | medium-coarse sand | brackish water bay.   Intertidal medium to coarse sand with detritus. | 
| Baicalellia canadensis Ax & Armonies, 1987 | Aug-Sep, 1984 |  |  | brackish water bay.   floating algal mats and green algae deposited on the shore. | 
| Halammovortex nigrifrons (Karling, 1935) | Aug-Sep, 1984 |  | muddy sand | brackish water bay.  Algal mats on muddy sand. | 
| Halammovortex nigrifrons (Karling, 1935) | Aug-Sep, 1984 |  | medium sand | brackish water bay.  medium sand rich in detritus. | 
| Halammovortex nigrifrons (Karling, 1935) | Aug-Sep, 1984 |  |  | brackish water bay.  floating algal mats and green algae deposited on the shore. | 
| Bresslauilla relicta Reisinger, 1929 | Aug-Sep, 1984 |  | medium-coarse sand | brackish water bay.  Intertidal medium to coarse sand with detritus. | 
| Byrsophlebidae spec. 1 Ax & Armonies, 1987 | Aug-Sep 1984 |  | sand | Pocologan, brackish water bay.  Intertidal medium to coarse sand with detritus. | 
| Byrsophlebidae spec. 2 Ax & Armonies, 1987 | Aug-Sep 1984 |  | sand, mud | Pocologan, brackish water bay.  Algal mats on  muddy sand. | 
| Placorhynchus separatus Ax, 2008 | 1987 or earlier |  | sand | Brackwasserbucht Pocologan, New Brunswick, Kanada.  Sand aus dem oberen Gezeitenbereich.  2 Expl. | 
| Halammovortex pseudonigrifrons Ax, 2008 | 1984 |  |  | Brackwasserbucht Pocologon (Quoddy Region) an der Küste von New Brunswick, Kanada. | 
| Chlamydorhynchus evekumiensis Evdonin, 1977 | 1987 or earlier |  | sand | Brackwasserbucht Pocologan.  Sand. |