| Paromalostomum fusculum Ax, 1952 | 1967-1968 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach, upper 4 cm of sand in summer, deeper into the sediment in winter | 
| Paromalostomum proceracauda Pawlak, 1969 | 1967-1968 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach, upper 4 cm of sand in summer, deeper into the sediment in winter | 
| Paromalostomum dubium (de Beauchamp, 1927) | 1967-1968 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach, upper 4 cm of sand in summer, deeper into the sediment in winter | 
| Antroposthia unipora Faubel, 1974 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach slope, coarse sand,  in ground water zone 40 cm deep, many animals | 
| Pseudaphanostoma psammophilum Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach slope and mud flats (wadden), few animals | 
| Aphanostoma album Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sandy beach slope and mud flats (wadden), few animals | 
| Aphanostoma album Dörjes, 1968 | May 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | mud sand beach east of Lister Hook | 
| Praeconvoluta minor Faubel, 1974 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope and mud flats (wadden), many animals | 
| Convoluella brunea Faubel, 1974 | September-October 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope and mud flats (wadden), many animals | 
| Antroposthia axi Faubel, 1974 | May-June 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope, few animals | 
| Nemertoderma sp. Westblad, 1937 | September 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope, one juvenile | 
| Haplogonaria simplex Dörjes, 1968 | June-August 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | groin (breakwater) south of Blidsel Bay, very numerous | 
| Haplogonaria simplex Dörjes, 1968 | May-August 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope and mud flats (wadden), few animals | 
| Pseudaphanostoma syltensis (Dörjes, 1968) | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope and wadden areas, very numerous | 
| Pseudaphanostoma syltensis (Dörjes, 1968) | September 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Lister Hook, very numerous | 
| Haplogonaria psammalia Faubel, 1974 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope  and wadden areas, several animals | 
| Simplicomorpha gigantorhabditis Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | sand beach slope  and wadden areas, several animals | 
| Simplicomorpha gigantorhabditis Dörjes, 1968 | September 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | East of Lister Hook | 
| Paratomella unichaeta Dörjes, 1966 | May 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach, 3 specimens (chains of animals) | 
| Anaperus tvaerminnensis (Luther, 1912) | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach slope and wadden areas, few specimens | 
| Actinoposthia biaculeata Faubel, 1974 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach slope, several specimens | 
| Paraproporus rosettiformis Faubel, 1974 | June 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flats, four specimens | 
| Microposthia listensis Faubel, 1974 | May-June 1972; Sept-Nov 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach slope, several specimens | 
| Microposthia listensis Faubel, 1974 | May-July 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach slope, several specimens | 
| Atriofronta polyvacuola Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand beach, several specimens | 
| Paedomecynostomum bruneum Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flats and wadden areas, few specimens | 
| Philomecynostomum lapillum Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flats and wadden areas, few specimens | 
| Postmecynostomum pictum Dörjes, 1968 | May-November 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flats and wadden areas, few specimens | 
| Postmecynostomum pictum Dörjes, 1968 | October 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Mud sand  flats and wadden areas, east of Lister Hook.  few specimens | 
| Pseudmecynostomum bruneofilum Faubel, 1974 | May-August 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flat and wadden areas, several specimens | 
| Eumecynostomum papillosum (Faubel, 1974) | May-October 1972 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flat and wadden areas, several specimens | 
| Oligofilomorpha interstitiophilum Faubel, 1974 | May-August 1973 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | Sand flat and wadden areas, several specimens | 
| Anaperus tvaerminnensis (Luther, 1912) |  | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | eulittoral in front of the old littoral station.  date collected not specified. | 
| Actinoposthia pigmentea Faubel, 1976 | Jun, Aug 1974 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | 2 specimens. | 
| Actinoposthia longa Faubel, 1976 | Jul 1974; Jul 1975 | eulittoral, littoral | sandy beach (middlelotic), sandy beach slope, sandy beach slopes and wadden areas, wadden areas | 2 specimens. | 
| Promonotus marci Ax, 1954 | pre 1995 | intertidal | sediment of wadden areas |  | 
| Promonotus marci Ax, 1954 | pre 1994 | intertidal | sand from wadden areas |  | 
| Retronectes sterreri Faubel, 1976 | March-Nov, 1974, Feb. 1975 | intertidal | sand |  | 
| Retronectes spec. Faubel, 1976 | spring, 1969 | intertidal | sand |  | 
| Ptychopera ehlersi Ax, 1971 | Mar, Apr 1970 |  | medium sand | 2 specimens.  leg. U. Ehlers. | 
| Messoplana falcata (Ax, 1953) | 1967-1970 |  | sand | sand flat, east bank  of the Litoral Station ( leg.  Ax and Ehlers.) | 
| Proxenetes (Paraxenetes) quadrispinosus den Hartog, 1966 | Jul 1970 |  | sand | 40 meters from beach break.  1 specimen.  leg. Ehlers. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | Aug 1969 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | Sep 1969 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | May 1969 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | May 1970 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | Feb 1970 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | Jun 1970 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Perixenetes) trigonus Ax, 1960 | Aug 1970 |  | sand | sandflat, found between 10 and 55 m from the bank. | 
| Proxenetes (Proxenetes) flabellifer Jensen, 1878 | Aug, Sep 1969 |  | sand | east, sand flat.  leg. U. Ehlers. | 
| Proxenetes (Proxenetes) simplex Luther, 1948 | May 1969 |  | sand | sand flat.  leg.. U. Ehlers. | 
| Proxenetes (Proxenetes) simplex Luther, 1948 | Sep 1969 |  | sand | sand flat.  leg.. U. Ehlers. | 
| Coronhelmis inornatus Ehlers, 1974 | Aug 1970 |  | sand | In the supralittoral of the beach slope; 7 m above the MHWL.  10-75 cm below the sand surface (groundwater 155 cm).  16 specimens. | 
| Coronhelmis tripartitus Ehlers, 1974 | Aug 1970 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Ciliopharyngiella intermedia Ax, 1952 | Jun 1969 - Mar 1971 |  | sand | Front sand Watt, lower and middle sand slope. Regularly over the whole year. | 
| Hoplopera pusilla Ehlers, 1974 | Aug 1970 |  | sand | 3 specimens.  East beach, supralitoral of the sand slope, 8 m landward the HWL. | 
| Pratoplana galeata Ehlers, 1974 | Jun 1969 - Mar 1971 |  | sand | in the middle of the beach slope.  Found regularly throughout the year. | 
| Haloplanella longatuba Ax & Heller, 1970 | May 1969 - Mar 1971 |  | sand | In the front sand flat and in the eulitoralen sand slope. Regularly over the whole year. | 
| Haloplanella hamulata Ehlers, 1974 | Feb 1970 |  | sand | East sand flatt in front.  3 individuals. | 
| Brinkmanniella macrostomoides Luther, 1948 | May 1969 |  | sand | East beach before the Litoralstation. In the sand flat and in the eulitoralen sand slope. Regularly over the whole year. | 
| Brinkmanniella macrostomoides Luther, 1948 | Jan 1971 |  | sand | East beach before the Litoralstation. In the sand flat and in the eulitoralen sand slope. Regularly over the whole year. | 
| Brinkmanniella macrostomoides Luther, 1948 | Sep 1973 |  | sand | East beach before the Litoralstation. In the sand flat and in the eulitoralen sand slope. Regularly over the whole year. | 
| Brinkmanniella procerastyla Ehlers, 1974 | Apr 1969 - Mar 1970 |  | sand | Sand flat near the Litoralstation.  4-110 m from the beach break. | 
| Coronhelmis multispinosus Luther, 1948 | May 1970 |  | sand | sand flat of the Litoralstation.  few specimens. | 
| Coronhelmis lutheri Ax, 1951 | Jun, Jul, Sep 1969 |  | sand | Sand flat of the Litoralstation.  3 samples. | 
| Coronhelmis tripartitus Ehlers, 1974 | May 1970 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Coronhelmis tripartitus Ehlers, 1974 | May 1969 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Coronhelmis tripartitus Ehlers, 1974 | Jul 1970 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Coronhelmis tripartitus Ehlers, 1974 | Sep 1970 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Coronhelmis tripartitus Ehlers, 1974 | Apr 1972 |  | sand | in the sand flat and beach slope of the Litoralstation.  14 specimens. | 
| Subulagera mucronata Ehlers, 1974 | Nov 1967 |  | sand | between the 0.0 m and 12 m mark. | 
| Subulagera mucronata Ehlers, 1974 | Nov 1967 |  | sand | regularly throughout the year.  leg. Prof. Dr. P. Ax | 
| Subulagera mucronata Ehlers, 1974 | Feb 1969 |  | sand | regularly throughout the year.  leg. Prof. Dr. P. Ax | 
| Subulagera mucronata Ehlers, 1974 | Mar 1971 |  | sand | regularly throughout the year.  leg. Prof. Dr. P. Ax | 
| Adenorhynchus balticus Meixner, 1938 | Jun 1969 - Mar 1971 |  | sand | east side of the Litoralstation der BAH.    Found regularly throughout the year. | 
| Litucivis serpens Ax & Heller, 1970 | May 1969 - Mar 1971 |  | sand | East beach before the Litoralstation of the BAH. In the front sand flat; lower and middle sand slope. Regularly over the whole year. | 
| Litucivis serpens Ax & Heller, 1970 | Sep 1973 |  | sand | East beach before the Litoralstation of the BAH. In the front sand flat; lower and middle sand slope. Regularly over the whole year. | 
| Listea simplex Ax & Heller, 1970 | Sep 1973 |  | sand | East beach before the Litoralstation of the BAH. In the front sand flat; lower and middle sand slope. Regularly over the whole year. | 
| Listea simplex Ax & Heller, 1970 | May 1969 - Mar 1971 |  | sand | East beach before the Litoralstation of the BAH. In the front sand flat; lower and middle sand slope. Regularly over the whole year. | 
| Promesostoma marmoratum (Schultze, 1851) | May 1969 - Sep 1970 |  | sand | East beach before the Litoralstation of the BAH.   Frequently numerous. | 
| Promesostoma marmoratum (Schultze, 1851) | Sep 1973 |  | sand | East beach before the Litoralstation of the BAH.   Frequently numerous. | 
| Promesostoma rostratum Ax, 1951 | Jul 1969 - Sep 1970 |  | sand | East beach of the Litoralstation of BAH.  small numbers. | 
| Promesostoma gracilis Ax, 1951 | Jul - Sep 1969 |  | sand | East beach of the Litoralstation der BAH.  Sand flat and sand beach slope.  In small numbers. | 
| Promesostoma gracilis Ax, 1951 | Jul - Sep 1970 |  | sand | East beach of the Litoralstation der BAH.  Sand flat and sand beach slope.  In small numbers. | 
| Promesostoma meixneri Ax, 1951 | May-Dec 1969 |  | sand | East beach of the Litoralstation BAH.  Sand flat.  Regularly found throughout the year, except the winter months. | 
| Promesostoma meixneri Ax, 1951 | Apr-Nov 1970 |  | sand | East beach of the Litoralstation BAH.  Sand flat.  Regularly found throughout the year, except the winter months. | 
| Promesostoma meixneri Ax, 1951 | Mar 1971 |  | sand | East beach of the Litoralstation BAH.  Sand flat.  Regularly found throughout the year, except the winter months. | 
| Promesostoma meixneri Ax, 1951 | Sep 1973 |  | sand | East beach of the Litoralstation BAH.  Sand flat.  Regularly found throughout the year, except the winter months. | 
| Promesostoma serpentistylum Ax, 1952 | Apr 1969 - Apr 1970 |  |  | East beach of the Litoralstation of BAH.  Front sand flat and lower sand slope.  Regular found throughout the year. | 
| Promesostoma caligulatum Ax, 1952 | May 1969 - Mar 1971 |  |  | East beach of the Litoralstation of BAH,  in small numbers throughout the  year. | 
| Promesostoma bipartitum Ax, 1956 | Aug, Sep 1970 |  | sand | East beach of the Litoralstation of BAH, sand beach slope.   Several individuals. | 
| Promesostoma karlingi Ehlers, 1974 | Jul 1969 |  | sand | East side beach of the Litoralstation of BAH, far beach sand flat.  Usually isolated. | 
| Promesostoma karlingi Ehlers, 1974 | Jul, Aug 1970 |  | sand | East side beach of the Litoralstation of BAH, far beach sand flat.  Usually isolated. | 
| Promesostoma karlingi Ehlers, 1974 | Aug 1971 |  | sand | East side beach of the Litoralstation of BAH, far beach sand flat.  Usually isolated. | 
| Promesostoma karlingi Ehlers, 1974 | Sep 1973 |  | sand | East side beach of the Litoralstation of BAH, far beach sand flat.  Usually isolated. | 
| Petaliella spiracauda Ehlers, 1974 | May 1969 - Mar 1971 |  | sand | East beach of the Litoralstation of BAH, front sand Watt and upper sublitoral.  Regularly over the whole year. | 
| Messoplana elegans Luther, 1948 | Jun, Jul 1970 |  | sand | East beach of the Litoralstation der BAH, within the range of the MNWL.  3 individuals. | 
| Messoplana floralis Ehlers, 1974 | Mar 1971 |  | sand | East beach of the Litoralstation der BAH.  In the groundwater of the middle sand slope.  1 specimen. | 
| Messoplana rugata Ehlers, 1974 | Jul 1970 |  | sand | East beach of the Litoralstation of BAH, middle sand slope.  2 individuals. | 
| Proxenetes ampullatus Ax, 1971 | Jan 1971 |  | sand | East beach of the Litoralstation of BAH, sand Watt, 70 m from the beach break.  1 specimen. | 
| Proxenetes quinquespinosus Ax, 1971 | Sep 1970 |  | sand | East beach of the Litoralstation of BAH, sand Watt, 30-75 m from the beach break.  3 specimens. | 
| Mariplanella frisia Ax & Heller, 1970 | May 1969 - Mar 1971 |  | sand | east beach of the Litoral Station (BAH), List.  Middle and front sand Watt, upper Sublitoral.  Regularly throughout the year. | 
| Mariplanella frisia Ax & Heller, 1970 | Sep 1973 |  | sand | east beach of the Litoral Station (BAH), List.  Middle and front sand Watt, upper Sublitoral.  Regularly throughout the year. | 
| Lonchoplanella axi Ehlers, 1974 | May 1949 |  | sand | In eulitoral sand slope.  Regularly over the whole year.  (Prof. Dr. P. Ax). | 
| Lonchoplanella axi Ehlers, 1974 | May 1969 - Mar 1971 |  | sand | In eulitoral sand slope.  Regularly over the whole year. | 
| Proceropharynx anophthalmus (Meixner, 1929) | May 1970 |  | sand | 3 specimens. | 
| Proceropharynx anophthalmus (Meixner, 1929) | Nov 1970 |  | sand | 3 specimens. | 
| Adenopharynx mitrabursalis Ehlers, 1972 | May 1969 - Mar 1971 |  |  |  | 
| Aulopharynx aestuarius Ehlers, 1972 | May 1969 - Mar 1971 |  | sand | Sandwatt.  Regularly throughout the year. | 
| Doliopharynx geminocirro Ehlers, 1972 | Nov 1969 - Mar 1971 |  | sand | Sandwatt.  10-30 m from the breakwater.  10 specimens. | 
| Mariplanella frisia Ax & Heller, 1970 | 1968 |  |  | East bank in front of the sandwatt. | 
| Mariplanella frisia Ax & Heller, 1970 | 1969 |  |  | East bank in front of the sandwatt. | 
| Adenorhynchus balticus Meixner, 1938 | 1968 |  | sand | In the sand slope; predominantly in the damp sand zone above the groundwater horizon. | 
| Adenorhynchus balticus Meixner, 1938 | 1969 |  | sand | In the sand slope; predominantly in the damp sand zone above the groundwater horizon. | 
| Litucivis serpens Ax & Heller, 1970 | Apr 1969 |  |  | Regularly in the front part of the sand Watt and in the lower sand slope. | 
| Listea simplex Ax & Heller, 1970 | 1969 |  | sand | settles the front sand Watt as well as the lower and middle sand hand. | 
| Listea simplex Ax & Heller, 1970 | 1968 |  | sand | settles the front sand Watt as well as the lower and middle sand hand. | 
| Haloplanella longatuba Ax & Heller, 1970 | 1968 |  | sand | east of the Litoral Station, List. | 
| Haloplanella longatuba Ax & Heller, 1970 | 1969 |  | sand | east of the Litoral Station, List. | 
| Neoschizorhynchus parvorostro Ax & Heller, 1970 | prior to 1970 |  | sand | east of the Litoral Station List, in the sandwatt, between the superficial oxidation layer and the jet black FeS layer. | 
| Microstomum papillosum Graff, 1882 | Apr-Jul 1972 |  | sand | eulittoral beach in front of the Litoralstation List.  Sandy beach slopes and wadden areas. | 
| Microstomum papillosum Graff, 1882 | Apr-Jul 1973 |  | sand | eulittoral beach in front of the Litoralstation List.  Sandy beach slopes and wadden areas. | 
| Microstomum jenseni Riedel, 1932 | May 1972 |  |  | tidal wadden areas of the Litoralstation List.  Many specimens. | 
| Microstomum jenseni Riedel, 1932 | Dec 1973 |  |  | tidal wadden areas of the Litoralstation List.  Many specimens. | 
| Microstomum spiculifer Faubel, 1974 | Sep-Oct 1972 |  | sand | sandy beach slopes and wadden areas of the Litoralstation List.  Several animals. | 
| Microstomum spiculifer Faubel, 1974 | Sep-Oct 1973 |  | sand | sandy beach slopes and wadden areas of the Litoralstation List.  Several animals. | 
| Macrostomum pusillum Ax, 1951 | May 1972 |  | sand | sand beach, anterior part of wadden ares of the Litoralstation List.   Some animals. | 
| Bradynectes sterreri Rieger, 1971 | Mar 1971 |  | sand | sand beach, and wadden area of the Listoralstation List.  Several animals. | 
| Bradynectes sterreri Rieger, 1971 | Nov, Dec 1973 |  | sand | sand beach, and wadden area of the Listoralstation List.  Several animals. | 
| Bradynectes sterreri Rieger, 1971 | Jan 1974 |  | sand | sand beach, and wadden area of the Listoralstation List.  Several animals. | 
| Myozona stylifera Ax, 1956 | May 1973 |  | sand | 1 animal. | 
| Myozona purpurea Faubel, 1974 | 1972 |  | sand | several animals.  found all year round. | 
| Myozona purpurea Faubel, 1974 | 1973 |  | sand | several animals.  found all year round. | 
| Antromacrostomum armatum Faubel, 1974 | May 1972 - Dec 1973 |  | sand | sand slope.  several animals. | 
| Haplopharynx rostratus Meixner, 1938 | May 1972 |  | sand |  | 
| Haplopharynx rostratus Meixner, 1938 | Jun 1973 |  | sand |  | 
| Haplopharynx rostratus Meixner, 1938 | Aug 1973 |  | sand |  | 
| Retronectes sterreri Faubel, 1976 | 1985 or earlier |  | fine sand | Wattenmeeres. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Dec 1969 |  |  | "Oststrand" in front of the former littoral station of the BAH.  Lower intertidal beach slope and upper tidal sandy flats. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Feb-Jul 1970 |  |  | "Oststrand" in front of the former littoral station of the BAH.  Lower intertidal beach slope and upper tidal sandy flats. | 
| Protandrella cirrifera Ehlers, Mueller & Franke, 1994 | Nov 1970 |  |  | "Oststrand" in front of the former littoral station of the BAH.  Lower intertidal beach slope and upper tidal sandy flats. | 
| Tvaerminnea direceptacula Ehlers, Mueller & Franke, 1994 | Dec 1969 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  Upper sandy tidal flats. | 
| Tvaerminnea direceptacula Ehlers, Mueller & Franke, 1994 | Jan 1970 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  Upper sandy tidal flats. | 
| Tvaerminnea direceptacula Ehlers, Mueller & Franke, 1994 | Jul 1970 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  Upper sandy tidal flats. | 
| Tvaerminnea direceptacula Ehlers, Mueller & Franke, 1994 | Nov 1970 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  Upper sandy tidal flats. | 
| Tvaerminnea direceptacula Ehlers, Mueller & Franke, 1994 | Jan 1971 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  Upper sandy tidal flats. | 
| Scoliopharyngia listensis Ehlers, Mueller & Franke, 1994 | Nov 1967 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  4 specimens. | 
| Scoliopharyngia listensis Ehlers, Mueller & Franke, 1994 | Nov 1969 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  4 specimens. | 
| Scoliopharyngia listensis Ehlers, Mueller & Franke, 1994 | Apr 1970 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  4 specimens. | 
| Scoliopharyngia listensis Ehlers, Mueller & Franke, 1994 | Jun 1970 |  | sand | "Oststrand" in front of the former littoral station of the BAH.  4 specimens. | 
| Archilopsis arenaria Martens, Curini-Galletti & Pucinelli, 1989 | Sep 1985 |  |  | medium sand in the mediolitoral of beaches along the Belgium coast, near the littoral station of Sylt. | 
| Archilopsis unipunctata (Fabricius, 1826) | Apr 1969 - Mar 1971 |  |  | List.  Sandwatt vor der Litoralstation der Biologischen Anstalt Helgoland.  Regelmässig über das ganze Jahr. | 
| Archilopsis unipunctata (Fabricius, 1826) | Apr 1970 |  |  | Buhne List-Süd.  Sandwatt.  Einige Tiere. | 
| Monocelis fusca Örsted, 1843 | Dec 1969 |  |  | List.  Sandhang vor der Litoralstation der Biologischen Anstalt Helgoland.  Nur 2 Tiere. | 
| Monocelis fusca Örsted, 1843 | Jul 1970 |  |  | List.  Sandhang vor der Litoralstation der Biologischen Anstalt Helgoland.  Nur 2 Tiere. | 
| Monocelis lineata (Müller, 1773) | Dec 1969 |  |  | List.  Sandhang vor der Litoralstation der Biologischen Anstalt Helgoland.  4 Tiere. | 
| Monocelis lineata (Müller, 1773) | Jul 1970 |  |  | List.  Sandhang vor der Litoralstation der Biologischen Anstalt Helgoland.  4 Tiere. | 
| Promonotus marci Ax, 1954 | Mar 1971 |  |  | List.  Sandwatt vor der Litoralstation der Biologischen Anstalt Helgoland.  Regelmässig über das ganze Jahr. | 
| Promonotus schultzei Meixner, 1943 | Aug 1970 |  |  | List.  Sandwatt vor der Litoralstation.  4 Expl. | 
| Promonotus schultzei Meixner, 1943 | Jul 1970 |  |  | List.  Sandwatt vor der Litoralstation.  4 Expl. | 
| Promonotus schultzei Meixner, 1943 | Sep 1970 |  |  | List.  Sandwatt vor der Litoralstation.  4 Expl. | 
| Mesoda septentrionalis Sopott, 1972 | Mar 1971 |  |  | List.  Im Sandhang vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Mesoda septentrionalis Sopott, 1972 | Apr 1969 |  |  | List.  Im Sandhang vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Coelogynopora biarmata Steinböck, 1924 | Apr 1969 |  |  | List.  Sandwatt vor der Litoralstation.  Regelmässig. | 
| Coelogynopora biarmata Steinböck, 1924 | Mar 1971 |  |  | List.  Sandwatt vor der Litoralstation.  Regelmässig. | 
| Coelogynopora gynocotyla Steinböck, 1924 | Apr 1969 - Mar 1971 |  |  | List.  Sandwatt vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Coelogynopora schulzii Meixner, 1938 | Apr 1969 - Mar 1971 |  |  | List.  Sandwatt vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Coelogynopora tenuis Meixner, 1938 | Apr 1969 - Mar 1971 |  |  | List.  Im Sandwatt vor der Litoralstation.  Vereinzelt. | 
| Coelogynopora axi Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | List.  Im Sandwatt vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Coelogynopora distortofolio Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | List.  Im Sandwatt vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Coelogynopora solifer Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | List.  Im Sandwatt vor der Litoralstation.  Wenige Exemplare. | 
| Carenscoilia biforamen Sopott, 1972 | Oct 1969 - Mar 1971 |  |  | List.  Im Sandwatt vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Carenscoilia bidentata Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | Sylt.  Sandwatt vor der Litoralstation List. In geringer Abundanz. | 
| Vannuccia umbilica Sopott, 1972 | Nov 1968 |  |  | List.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland.  Im Sandwatt.  Zwei Exempl. | 
| Vannuccia umbilica Sopott, 1972 | Mar 1970 |  |  | List.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland.  Im Sandwatt.  Ein Exempl. | 
| Cirrifera cirrifera Sopott, 1972 | Mar 1971 |  |  | Litoralstation der Biologischen Anstalt Helgoland in List.  Regelmässig im vorderen Watt und unteren Hangabschnitt. das ganze Jahr | 
| Cirrifera cirrifera Sopott, 1972 | Apr 1969 |  |  | Litoralstation der Biologischen Anstalt Helgoland in List.  Regelmässig im vorderen Watt und unteren Hangabschnitt. das ganze Jahr | 
| Cirrifera dumosa Sopott, 1972 | Sep 1970 |  |  | Sylt.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Im Sandwatt. | 
| Cirrifera dumosa Sopott, 1972 | Nov 1970 |  |  | Sylt.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Im Sandwatt. | 
| Cirrifera dumosa Sopott, 1972 | Mar 1971 |  |  | Sylt.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Im Sandwatt. | 
| Cirrifera boletiformae Sopott, 1972 | Mar 1971 |  |  | Sylt.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Mehrere Exemplare. | 
| Cirrifera boletiformae Sopott, 1972 | Dec 1969 |  |  | Sylt.   Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Mehrere Exemplare. | 
| Cirrifera aculeata (Ax, 1951) | Jun 1971 |  |  | Sylt.   Ostufer vor der Litoralstation der Biologischen Anstalt Helgoland in List.  Im Sandwatt.  1 Exemplare. | 
| Orthoplana filum (Meixner, 1938) | Aug 1969 |  |  | Sylt.  Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland. Wenige Exemplare. | 
| Orthoplana filum (Meixner, 1938) | Sep 1970 |  |  | Sylt.  Oststrand vor der Litoralstation der Biologischen Anstalt Helgoland. Wenige Exemplare. | 
| Dicoelandropora atriopapillata Ax, 1956 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Itaspiella helgolandica helgolandica Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | Sylt.  Oststrand vor der Litoralstation List.  Regelmässig über das ganze Jahr. | 
| Otoplanella schulzi (Ax, 1951) | Apr 1969 - Mar 1971 |  |  | List.  Am Ostufer vor der Litoralstation.  Im Sandhang.  Regelmässig über das ganze Jahr. | 
| Notocaryoplanella glandulosa (Ax, 1951) | Mar 1971 |  |  | List.  Oststrand vor der Litoralstation List.  Im Sandwatt. | 
| Notocaryoplanella glandulosa (Ax, 1951) | Jan 1971 |  |  | List.  Oststrand vor der Litoralstation List.  Im Sandwatt. | 
| Bulbotoplana acephala Ax, 1956 | Apr 1969 - Mar 1971 |  |  | List.  Ostufer vor der Litoralstation.  Im Sandwatt.  Regelmässig über das ganze Jahr. | 
| Parotoplana capitata Meixner, 1938 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Im Sandwatt und im Sandhang.  Regelmässig über das ganze Jahr. | 
| Parotoplana papii Ax, 1956 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Parotoplanina geminoducta Ax, 1956 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Praebursoplana steinboecki Ax, 1956 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Regelmässig über das ganze Jahr. | 
| Otoplanidia endocystis Meixner, 1938 | Apr 1970 |  |  | List.  Am Oststrand vor der Litoralstation.  Im vorderen Sandwatt.  1 Exemplar. | 
| Philosyrtis rotundicephala Sopott, 1972 | Apr 1969 - Mar 1971 |  |  | Sylt.  Am Oststrand vor der Litoralstation List der Biologischen Anstalt Helgoland.  Im vorderen Sandwatt.  Wenige Exemplare. | 
| Polystyliphora filum Ax, 1958 | Apr 1969 - Mar 1971 |  |  | List.  Am Oststrand vor der Litoralstation.  Im Sandwatt.  Wenige Tiere. | 
| Nematoplana coelogynoporoides Meixner, 1938 | Apr 1969 - Mar 1971 |  |  | List.  Oststrand vor der Litoralstation.  Regelmassig über das ganze Jahr. | 
| Drepanilla limophila Ehlers, 1979 | May 1969 - Nov 1970 |  |  | Tiefere Schichten des Sandwattes vor dem Altbau de Litoralstation Anstalt Helgoland in List.  Zahlreiche Exemplare zu allen Jahreszeiten. | 
| Aculeorhynchus glandulis Schilke, 1969 | 1967 |  |  | Sylt.  List. Sandwatt und Sandhang vor der Litoralstation der Biologischen Anstalt Helgoland. | 
| Nematorhynchus parvoacumine Schilke, 1969 | 1967 |  |  | Sylt.  List. Sandwatt vor der Litoralstation der Biologischen Anstalt Helgoland. | 
| Pogaina kinnei Ax, 1970 | 1966-1969 |  |  | Ostufer der Insel Sylt vor der Litoralstation der Biologischen Anstalt Helgoland.  Regelmässig im Sandwatt. |