| 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. |