| Proschizorhynchella faeroeensis (Steinbock, 1931) | 1928 |  | fine sand, and coarse sand | Steinbock notes that Meixner collected this species, in fine sand at this site. | 
| Neopolycystis tridentata Karling, 1955 | summer 1954 | sublitoral, 2-7 m | medium and coarse sand | very common | 
| Acmostomum cyprinae Graff, 1882 | prior to 1882 |  |  | Commensul species found in mantel water of Cyprina islandica | 
| Polystyliphora filum Ax, 1958 | prior to 1958 |  |  |  | 
| Psammopolycystis bidens Meixner, 1938 | 1928 or earlier |  | sand |  | 
| Psammopolycystis bidens Meixner, 1938 | 1956 or earlier | sublitoral | medium to coarse sand and gravel | from (P. Ax in litt). | 
| Typhlopolycystis coeca Karling, 1956 | 1956 or earlier | 3-12 m | medium to coarse sand | in different locations. | 
| Psammorhynchus tubulipenis Meixner, 1938 | 1938 or earlier |  | sand |  | 
| Psammorhynchus tubulipenis Meixner, 1938 | 1956 or earlier | 2-6 m | medium to coarse sand | material from Ax. | 
| Ethmorhynchus anophthalmus Meixner, 1938 | 1938 or earlier | 18 m | mud | near open water buoy (Nebenfahrwassertonne, channel buoy ?) | 
| Ethmorhynchus anophthalmus Meixner, 1938 | 1938 or earlier | 8-10 m | mud (Schlick) | near open water buoy (Nebenfahrwassertonne, channel buoy ?) | 
| Nannorhynchides herdlaensis (Karling, 1956) | 1956 or earlier | 4-17 m | medium to coarse Sand with Gravel | sublitoral, in different places, Ax. | 
| Cheliplanilla caudata Meixner, 1938 | 1951 or earlier |  | fine sand | Otoplanen zone, and coarse sand zone. | 
| Proxenetes flabellifer Jensen, 1878 | 1951 or earlier |  |  |  | 
| Cheliplana remanei (Meixner, 1928) | Mar 1968 |  |  |  | 
| Gnathorhynchus conocaudatus Meixner, 1929 | Dec 1967 |  |  |  | 
| Monocelis lineata (Müller, 1773) | 1913 or earlier |  |  |  | 
| Euxinia baltica Meixner, 1938 | 1938 or earlier | 17 m | shell sand` | Baltic Sea, Bay of Kiel. | 
| Paromalostomum notandum Ax, 1951 | 1951 or earlier |  |  |  | 
| Paromalostomum dubium (de Beauchamp, 1927) | Nov 1950 | 5-6 m | medium to coarse sand | Stoller Grund. | 
| Pseudosyrtis subterranea (Ax, 1951) | prior to 1951 |  |  |  | 
| Proxenetes angustus Ax, 1951 | prior to 1951 |  |  | common. | 
| Proxenetes trigonus Ax, 1960 | prior to 1960 |  |  | Westhever Sand along the German North Sea coast in two localities in Kiel Bay.  with Arenicola marina. | 
| Proxenetes pratensis Ax, 1960 | prior to 1965 |  |  | salt-marshes of Kiel Bay.  (Ax; Bilio 1962, 1965) | 
| Messoplana elegans Luther, 1948 | prior to 1953 |  |  |  | 
| Macrostomum minutum Luther, 1947 | Apr 1971 |  |  |  | 
| Macrostomum curvituba Luther, 1947 | 1967 |  |  |  | 
| Macrostomum curvituba Luther, 1947 | 1968 |  |  |  | 
| Monocelis lineata (Müller, 1773) | Jun 1968 |  |  |  | 
| Monocelis lineata (Müller, 1773) | Apr 1971 |  |  |  | 
| Coelogynopora biarmata Steinböck, 1924 | Apr 1971 |  |  |  | 
| Coelogynopora schulzii Meixner, 1938 | Apr 1971 |  |  |  | 
| Nematoplana coelogynoporoides Meixner, 1938 | Oct 10, 1967 |  |  |  | 
| Nematoplana coelogynoporoides Meixner, 1938 | Dec 28, 1967 |  |  |  | 
| Nematoplana coelogynoporoides Meixner, 1938 | Apr 20, 1968 |  |  |  | 
| Itaspiella armata (Ax, 1951) | Apr 20, 1968 |  |  |  | 
| Itaspiella armata (Ax, 1951) | Dec 28, 1967 |  |  |  | 
| Itaspiella armata (Ax, 1951) | Apr 25, 1971 |  |  |  | 
| Bothriomolus balticus Meixner, 1938 | Apr 20, 1968 |  |  |  | 
| Bulbotoplana acephala Ax, 1956 | Apr 1971 |  |  |  | 
| Provortex karlingi Ax, 1951 | Jun 24, 1968 |  |  |  | 
| Vejdovskya pellucida (Schultze, 1851) | Jun 24, 1968 |  |  |  | 
| Vejdovskya pellucida (Schultze, 1851) | Jun 25, 1968 |  |  |  | 
| Vejdovskya simrisiensis Karling, 1957 | Oct 1967 |  |  |  | 
| Balgetia semicirculifera Karling, 1962 | Apr 20, 1968 |  |  |  | 
| Jensenia angulata (Jensen, 1879) | Apr  1971 |  |  |  | 
| Balgetia semicirculifera Karling, 1962 | Jun 24,  1971 |  |  |  | 
| Coronhelmis lutheri Ax, 1951 | Apr  1971 |  |  |  | 
| Coronhelmis multispinosus Luther, 1948 | Jun 24, 1968 |  |  |  | 
| Promesostoma meixneri Ax, 1951 | Jun 24, 1968 |  |  |  | 
| Ptychopera hartogi Ax, 1971 | Apr 1971 |  |  |  | 
| Cicerina tetradactyla Giard, 1904 | Jun 24, 1968 |  |  |  | 
| Uncinorhynchus flavidus Karling, 1947 | Oct 10, 1967 |  |  |  | 
| Carcharodorhynchus subterraneus Meixner, 1938 | Dec 28, 1967 |  |  |  | 
| Carcharodorhynchus subterraneus Meixner, 1938 | Oct 1967 |  |  |  | 
| Bresslauilla relicta Reisinger, 1929 | 1951 or earlier |  |  | an mehreren Stellen von ca. 10-15º/oo Salzgehalt im mehr oder weniger detritusreichen Sand und in Algenwatten | 
| Provortex balticus (Schultze, 1851) | 1931 or earlier |  |  |  | 
| Provortex balticus (Schultze, 1851) | 1930 or earlier |  |  |  | 
| Provortex balticus (Schultze, 1851) | 1951 or earlier |  | coarse sand | Der ufernahe Grobsand ist hervorzuheben, weil dieser in der Kieler Bucht einen Lebensraum von Provortex karlingi bildet.  Im Greifswalder Bodden war hier nur Provortex balticus nachweisbar. | 
| Provortex balticus (Schultze, 1851) | 1956 or earlier |  |  |  | 
| Provortex pallidus Luther, 1948 | 1960 or earlier |  |  | Salt-impregnated meadows at the Kieler Bay. | 
| Provortex karlingi Ax, 1951 | 1951 or earlier |  |  |  | 
| Provortex tubiferus Luther, 1948 | 1962 or earlier |  |  |  | 
| Provortex tubiferus Luther, 1948 | 1962 or earlier |  |  |  | 
| Vejdovskya ignava Ax, 1951 | 1951 or earlier |  |  |  | 
| Baicalellia brevitubus (Luther, 1918) | 1960 or earlier |  |  | Salt-impregnated meadow soils and of the Kieler bay. | 
| Hangethellia calceifera Karling, 1940 | 1954 or earlier |  |  |  | 
| Maehrenthalia dubia Ax, 1956 | 1956 or earlier |  |  |  | 
| Brinkmanniella macrostomoides Luther, 1948 | 1951 or earlier |  |  |  | 
| Tvaerminnea karlingi Luther, 1943 | 1951 or earlier |  |  |  | 
| Coronhelmis multispinosus Luther, 1948 | 1951 or earlier |  |  |  | 
| Coronhelmis multispinosus Luther, 1948 | 1954 or earlier |  |  |  | 
| Coronhelmis multispinosus Luther, 1948 | 1960 or earlier |  |  |  | 
| Coronhelmis lutheri Ax, 1951 | 1951 or earlier |  |  | fresh water river flow and beach pool. | 
| Macrostomum rubrocinctum Ax, 1951 | 1951 or earlier |  |  | Bay of Kiel. | 
| Prognathorhynchus dubius Meixner, 1929 | 1929 or earlier |  |  |  | 
| Gnathorhynchus conocaudatus Meixner, 1929 | 1929 or earlier |  |  |  | 
| Gnathorhynchus hastatus Meixner, 1929 | 1929 or earlier |  |  |  | 
| Neopolycystis tridentata Karling, 1955 | prior to 1938 |  | sand | Aus Meeressand in der Nordsee und in der Kieler Bucht. | 
| Schizorhynchoides rarus Ax, 1951 | 1951 or earlier |  | fine sand | Expece signalee seulement de la Baie de Kiel, dans un sable fin. | 
| Cystiplana paradoxa Karling, 1964 | 1964 or earlier | 7 m |  | Kieler Bucht, Breitgrund, Sand mit Steinen. | 
| Itaspiella armata (Ax, 1951) | 1951 or earlier |  |  |  | 
| Haloplanella minuta Luther, 1946 | 1951 or earlier |  | fine sand | Kieler Bucht, in detritusreichem Feinsand. | 
| Haloplanella minuta Luther, 1946 | 1956 or earlier |  | fine sand | Kieler Bucht, in detritusreichem Feinsand. | 
| Thalassoplanella collaris Luther, 1946 | 1951 or earlier |  |  | Kieler Bucht (Ax 1951). | 
| Minona baltica Karling & Kinnander, 1953 | 1960 or earlier |  |  | Kieler Bucht. | 
| Minona baltica Karling & Kinnander, 1953 | 1964 or earlier |  |  | Kieler Bucht. | 
| Promesostoma bilineatum Pereyaslawzewa, 1892 | 2008 or earlier |  |  | Kieler Bucht.  Stillwasserbiotop bei Heiligenhafen.  In schwimmenden Algenwatten. | 
| Promesostoma nynaesiense Karling, 1957 | 1974 or earlier |  |  | Feuchtsandzone landwärts der Wasserlinie von Sandstränden (was früher unscharf als "Kustengrundwasser" bezeichnet wurde).  Dabei ist die Art bisher nur aus der Ostsee bekannt - von der Kieler Bucht, der schwedischen Ostseeküste und Finnischen Meersbu | 
| Promesostoma cochleare Karling, 1935 | 1951 or earlier |  | coarse sand, gravel | In der Kieler Bucht lebt P. cochleare im gezeitenlosen Brandungsstrand; sie siedelt hier regelmässig im Grobsand-Kies der Otoplanen-Zone. | 
| Promesostoma balticum Luther, 1918 | 1951 or earlier | 23 m | Schlamm | Kieler Bucht.  Stoller Grund.  Schlamm in 23 m Tiefe. | 
| Prognathorhynchus karlingi Ax, 1953 | 1953 or earlier |  | mud | Kieler Bay, muddy station, under supports of a bridge. | 
| Parautelga bilioi Karling, 1964 | 1964 or earlier |  |  | Kieler Bucht.  Hauptsächlich im Andelrasen von Salzwiesen. | 
| Provortex affinis (Jensen, 1878) | 1936 or earlier |  |  | Im Ostseeraum ist Provortex affinis nur aus dem Polyhalinicum der Kieler Bucht bekannt - aus Enteromorpha, .... | 
| Halammovortex macropharynx (Meixner, 1938) | 1951 or earlier |  |  | Ostsee.  Kieler Bucht. | 
| Pseudograffilla arenicola Meixner, 1938 | 1938 or earlier |  |  | Bisher war die Art nur aus der Kieler Bucht bekannt | 
| Jensenia angulata (Jensen, 1879) | 1951 or earlier |  |  |  |