|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Skutustaoir, north Iceland | 597 
  map | Jul 1-Aug 2, 1937 |  |  |  | freshwater | pool near Skutustaoir (Myvatn), several specimens. | Steinböck O (1948): 22-23 | 
| B | from Marina to Angelica, Cordoba, Argentina | 1614 
  map | Apr 1989 |  |  |  | freshwater | one specimen, from a series of ponds from Marina to Angelica. | Noreña-Janssen C (1995): 243 | 
| C | Lago Nahuel Huapi, Puerto Blest, Rio Negro, Agentina | 1615 
  map | Aug 1989 |  |  |  | freshwater | four specimens, from a small pond near lake Nahuel Huapi. | Noreña-Janssen C (1995): 243 | 
| D | Mühlenberger Loch, Germany | 1625 
  map | May-Nov 1991 |  |  | mud | freshwater | many specimens. sheltered area of high sedimentation, mud sediments rich with detritus and covered with algae. | Müller D, Faubel A (1993): 379 | 
| E | Harbor of Haseldorf, Elbe River Estuary, Germany | 1629 
  map | May-Nov 1991 |  |  | mud | freshwater | many specimens; lenitic area of high sedimentation; muddy substrates covered with diatoms.  Banks covered with Phragmites. | Müller D, Faubel A (1993): 379 | 
| F | Münchenstein (Munchenstein), Switzerland | 1954 
  map | prior to 1894 |  |  |  | freshwater | summer and winter. | Fuhrmann O (1894): 218-222, 276 | 
| G | Reinach, Switzerland | 1956 
  map | prior to 1894 |  |  |  | freshwater |  | Fuhrmann O (1894): 218-222, 276 | 
| H | Theydon Bois, United Kingdom | 2116 
  map | prior to 1913 |  |  |  | freshwater |  | Whitehead H (1913): ; from Young JO 1970 (citation)- p. 221 | 
| I | Phoenix Park, Ireland | 2185 
  map | prior to 1936 |  |  |  | freshwater | pond | Southern R (1936): ; from Young JO 1970 (citation)- p. 221 | 
| J | The Scalp, Ireland | 2186 
  map | prior to 1936 |  |  |  | freshwater | pond | Southern R (1936): ; from Young JO 1970 (citation)- p. 221 | 
| K | Cambridge, United Kingdom | 2178 
  map | Aug 27, 1962 |  |  |  | freshwater | Coe Fen.  Identification confirmed by Young from specimens deposited at the British Museum. | Crompton DWT, Smith MH (1963): ; from Young JO 1970 (citation)- p. 221 | 
| L | Stevenage, United Kingdom | 2136 
  map | 1965-1967 |  |  |  | freshwater | found in a percolating filter at the Water Pollution Research Laboratory. | Young JO (1970): 222 | 
| M | Plain of Romania (Romanian Plain), Ilfov County, Romania | 2590 
  map | 1970 or earlier |  |  |  | freshwater | In the Carpathian sources and the stagnant freshwater basins of the Romanian Plain. | Mack-Fira V (1970): ; from Mack-Fira 1974 (citation)- p. 262 | 
| N | Carpathian Mountains, Romania | 2591 
  map | 1970 or earlier |  |  |  | freshwater | In the Carpathian sources and the stagnant freshwater basins of the Romanian Plain. | Mack-Fira V (1970): ; from Mack-Fira 1974 (citation)- p. 262 | 
| O | Mangalia Lake (village Limanu), Romania | 2570 
  map | Oct 17, 1968 |  |  |  | freshwater | Numerous specimens, in a holocrene freshwater source without vegetation. | Mack-Fira V (1974): 262 | 
| P | Scotland (Schottland), United Kingdom | 2155 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| Q | Germany (Deutschland) | 2628 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| R | France (Frankreich) | 2454 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| S | Denmark (Dänemark) | 2469 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| T | Jura (Le Jura) Mountains, France and Switzerland | 2671 
  map | 1913 or earlier |  |  |  | freshwater | in lakes up to 1500 m altitude. | Graff Lvon (1913): 137 | 
| U | Lago Maggiore (Verbano, Majeur, Locarno, Langensee), Switzerland | 2630 
  map | 1913 or earlier |  | 78 m |  | freshwater |  | Graff Lvon (1913): 137 | 
| V | western and middle, Czech Republic (Böhmen, Bohmen, Bohemia) | 2640 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| W | Lisina (Lesina), Bosnia and Herzegovina | 2672 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| X | Transilvania (Transylvania, Siebenburgen, Siebenbürgen, Ardeal, Erdely) | 2594 
  map | 1913 or earlier |  |  |  | freshwater |  | Graff Lvon (1913): 137 | 
| Y | Praha (Prague, Cheshskaya Praga, Praga, Prag), Czech Republic | 2739 
  map | 1886 or earlier |  |  |  |  |  | Sekera E (1886): [location from Louise Bush notes on literature for this species, see card] | 
| Z | Rovigno (Rovigno d'Istria, Rovinj), Croatia | 1146 
  map | 1933 or earlier |  |  | mud | freshwater | shady pools in Hütteroth Park. | Steinböck O (1933): 10 | 
| A1 | Hatch Mere, Hatchmere, Chester (Cheshire), United Kingdom | 3336 
  map | May 1966 - Feb 1967 |  | littoral |  | freshwater | calcium rich lake (38.0 mg/l). | Young JO (1973): 204 | 
| B1 | Warszawa (Warschau, Varsavia, Varshava, Warsaw, Varsovie), Poland | 2674 
  map | 1926 or earlier |  |  |  |  | near Warsaw.  thin-shelled eggs. | Gieysztor M (1926): abstract | 
| C1 | Lago Maggiore (Verbano, Majeur, Locarno, Langensee), Switzerland | 2630 
  map | 1911 or earlier |  | 78 m |  | freshwater | Lago Maggiore, in 78 m Tiefe. | Hofsten N v (1911): from Hofsten 1912 (citation)- p. 626 | 
| D1 | Neuchâtel (Neuchatel, Neuenburg), Switzerland | 4097 
  map | 1906 or earlier |  |  |  | freshwater | Tümpel auf dem Pouillerel (Neuchateler Jura, 1220 m ü. M.). | Thiébaud M, Favre J (1906): from Hofsten 1912 (citation)- p. 626 and Thiébaud & Favre 1906 (citation) | 
| E1 | Geneve (Genf, Ginevra, Geneva), Switzerland | 3925 
  map | 1900 or earlier |  |  |  | freshwater | Saleve nahe bei Geneve (auf französischem Gebiet) | Fuhrmann O (1900): from Hofsten 1912 (citation)- p. 626 | 
| F1 | Geneve (Genf, Ginevra, Geneva), Switzerland | 3925 
  map | 1900 or earlier |  |  |  | freshwater | Tümpel auf dem Reculet nahe bei Geneve (Jura, auf französischem Gebiet, ca. 1500 m ü. M.) | Fuhrmann O (1900): from Hofsten 1912 (citation)- p. 626 and Du Plessis 1897 (citation) | 
| G1 | Orbe, Switzerland | 4136 
  map | 1897 or earlier |  |  |  | freshwater | Tümpel und Gräben in der Umgebung von Orbe und Yverdon. | Du Plessis G (1897): from Hofsten 1912 (citation)- p. 626 | 
| H1 | Yverdon-les-Bains (Yverdon, Yverden), Switzerland | 4129 
  map | 1897 or earlier |  |  |  | freshwater | Tümpel und Gräben in der Umgebung von Orbe und Yverdon. | Du Plessis G (1897): from Hofsten 1912 (citation)- p. 626 | 
| I1 | Kilpisjarvi (Kilpisjärvi), Finland | 3031 
  map | Jul 11, 1950 |  |  |  |  | Kilpisjärvi, Pikku Malla, Bach auf der Südseite, ca 600 m ü.M., Wasser 8ºC, Tier weiss. | Luther A (1963): 132 | 
| J1 | Pikku Malla, Lapland, Finland | 5914 
  map | Jul 11, 1950 |  |  |  |  | Kilpisjärvi, Pikku Malla, Bach auf der Südseite, ca 600 m ü.M., Wasser 8ºC, Tier weiss. | Luther A (1963): 132 | 
| K1 | Kittilä (Kittila), Finland | 2979 
  map | Jul 1, 1950 |  |  |  |  | Kittilä | Luther A (1963): 132 | 
| L1 | Sirkka (Sikkola), Finland | 2981 
  map | Jul 1, 1950 |  |  |  |  | Sirkka, Myllyoja, Callitriche, Moos, etc, weisse u. grüne Tiere. | Luther A (1963): 132 | 
| M1 | Luusua, Finland | 2982 
  map | Jul 1, 1950 |  |  |  |  | Quelle bei Luusua, durchrieseltes Moos (s. oben) | Luther A (1963): 132 | 
| N1 | Nilivaara, Finland | 2990 
  map | Jul 1950 |  |  |  |  | Nilivaara, Wiesengräben mit Moos, Caltha etc. am Ufer des Sotkajärvi | Luther A (1963): 132 | 
| O1 | Sotkajärvi, Finland | 4990 
  map | Jul 1950 |  |  |  |  | Sotkajärvi an Myriophyllum | Luther A (1963): 132 | 
| P1 | Sorettianjärvi, Finland | 5799 
  map | Jul 1950 |  |  |  |  | Quelle des Sorettianjärvi (s. oben) | Luther A (1963): 132 | 
| Q1 | Hautajärvi, Finland | 3003 
  map | Jul 1950 |  |  |  |  | Hautajärvi, kleiner Bach am Ufer, 10-12 ºC., weisse u. grüne Exx. | Luther A (1963): 132 | 
| R1 | Urjala (Urdiala), Finland | 3005 
  map | Jun 2, 1956 |  |  |  |  | Urajala, Raikko, Kalkkilehto | Luther A (1963): 132 | 
| S1 | Lammi, Finland | 5665 
  map | May 26, 1956 |  |  |  |  | Lammi, Biol. Station, grosser Tümpel unterhalb des Parks, 19 ºC | Luther A (1963): 132 | 
| T1 | Janakkala, Finland | 2983 
  map | 1963 or earlier |  |  |  |  | Janakkala, Rauhaniemi, überschwemmte Uferwiesen des Puujoki, Vääksy, Uferwiese des Päijänne. | Luther A (1963): 132 | 
| U1 | Rauvanniemi (Rauhaniemi), Finland | 2984 
  map | 1963 or earlier |  |  |  |  | Janakkala, Rauhaniemi, überschwemmte Uferwiesen des Puujoki, Vääksy, Uferwiese des Päijänne. | Luther A (1963): 132 | 
| V1 | Puujoki, Finland | 2985 
  map | 1963 or earlier |  |  |  |  | Janakkala, Rauhaniemi, überschwemmte Uferwiesen des Puujoki, Vääksy, Uferwiese des Päijänne. | Luther A (1963): 132 | 
| W1 | Vesijarven Kanava (Vaaksy, Vääksy, Vaaskyn), Finland | 2989 
  map | 1963 or earlier |  |  |  |  | Janakkala, Rauhaniemi, überschwemmte Uferwiesen des Puujoki, Vääksy, Uferwiese des Päijänne. | Luther A (1963): 132 | 
| X1 | Päijänne, Finland | 5714 
  map | 1963 or earlier |  |  |  |  | Janakkala, Rauhaniemi, überschwemmte Uferwiesen des Puujoki, Vääksy, Uferwiese des Päijänne. | Luther A (1963): 132 | 
| Y1 | Lohjanjarvi (Lohjanjärvi, Lojo-See, Lojosjö, Lojosee), Finland | 2986 
  map | 1902 |  |  |  |  | Lojo = Lohja, Ufertümpel des Lojo-Sees. | Luther A (1963): 132 | 
| Z1 | Zoologischen Station Tvärminne (Tvarminne), Hanko (Hango, Hangö), Finnish Bay, Finland | 1378 
  map | Apr-May 1950 |  |  |  |  | Zoolog. Station, Hästhagen, kleiner Graben mit fliessendem Wasser, 6-10º C | Luther A (1963): 132 | 
| A2 | Tenala (Tenhola), Finland | 2974 
  map | Aug 1951 |  |  |  |  | Tenala, Lappvik, grosser Tümpel, 10-15 cm tief, 16-19ºC., in Vegetation u. Bodenproben. | Luther A (1963): 132 | 
| B2 | Lappohja (Lappvik), Finnish Bay (Finnischen Meersbusen), Finland | 887 
  map | Aug 1951 |  |  |  |  | Tenala, Lappvik, grosser Tümpel, 10-15 cm tief, 16-19ºC., in Vegetation u. Bodenproben. | Luther A (1963): 132 | 
| C2 | Tuusulanjarvi (Tuusulanjärvi, Tusbyträsk, Tusby träsk), Finland | 3030 
  map | May 5, 1901 |  |  |  |  |  | Luther A (1963): 132 | 
| D2 | Borgå (Porvoo, Borgo, Porvo, Porvoon Maalaiskunta), Finland | 5985 
  map | May 1948 |  |  |  |  | Wiesentümpel | Luther A (1963): 132 | 
| E2 | Helsinki (Helsingkiranta, Helsinginkyla, Helsinge, Helsingfors, Khel’sinki, Yelsinki), Finland | 2925 
  map | May 11, 1952 |  |  |  |  | Helsingfors = Helsinki, Haga, Graben mit schwach fliessendem Wasser, 14.8 ºC | Luther A (1963): 132 | 
| F2 | Haaga (Haga), Finland | 5765 
  map | May 11, 1952 |  |  |  |  | Helsingfors = Helsinki, Haga, Graben mit schwach fliessendem Wasser, 14.8 ºC | Luther A (1963): 132 | 
| G2 | Viborg (Viipuri, Wiborg, Vipuri), Leningradskaya Oblast', Russia | 3027 
  map | 1917 or earlier |  |  |  |  | Umgebung von Viipuri = Viborg, Salojärvi (Ph. megalops Nasonov 1917, p. 1107) | Nasonov NV (1917): 1107; from Luther 1963 (citation)- p. 132 | 
| H2 | Salojärvi, Finland | 5826 
  map | 1917 or earlier |  |  |  |  | Umgebung von Viipuri = Viborg, Salojärvi (Ph. megalops Nasonov 1917, p. 1107) | Nasonov NV (1917): 1107; from Luther 1963 (citation)- p. 132 | 
| I2 | Scotland (Schottland), United Kingdom | 2155 
  map | 1896 or earlier |  |  |  |  |  | Gamble FW (1896): from Luther 1963 (citation)- p. 132 | 
| J2 | England, United Kingdom | 2636 
  map | 1913 or earlier |  |  |  |  |  | Whitehead H (1913): from Luther 1963 (citation)- p. 132 | 
| K2 | Torne Lappmark (Tornea Lappmark), Sweden | 2882 
  map | 1916 or earlier |  |  |  |  | Torne Lappmark, Abisko, permanente Tümpel. | Hofsten N v (1917): from Luther 1963 (citation)- p. 132 | 
| L2 | Abisko, Sweden | 2887 
  map | 1916 or earlier |  |  |  |  | Torne Lappmark, Abisko, permanente Tümpel. | Hofsten N v (1917): from Luther 1963 (citation)- p. 132 | 
| M2 | Denmark (Dänemark) | 2469 
  map | 1905 or earlier |  |  |  |  |  | Brinkmann A (1905): from Luther 1963 (citation)- p. 132 | 
| N2 | Helgoland, Germany | 4234 
  map | 1940 or earlier |  |  |  |  |  | Arndt W (1940): from Luther 1963 (citation)- p. 132 | 
| O2 | Schleswig-Holstein, Germany | 5786 
  map | 1961 or earlier |  |  |  |  |  | Rixen J-U (1961): from Luther 1963 (citation)- p. 132 | 
| P2 | Kurmark, Germany | 3468 
  map | 1942 or earlier |  |  |  |  |  | Weise M (1942): from Luther 1963 (citation)- p. 132 | 
| Q2 | Heidelberg, Germany | 5984 
  map | 1963 or earlier |  |  |  |  |  | Luther A (1963): 132 | 
| R2 | Handschuhsheim (Handschuchsheim), Germany | 5986 
  map | 1963 or earlier |  |  |  |  |  | Luther A (1963): 132 | 
| S2 | Hambachtal, Germany | 5987 
  map | 1963 or earlier |  |  |  |  |  | Luther A (1963): 132 | 
| T2 | Lille, Nord Pas de Calais, France | 2734 
  map | 1890 or earlier |  |  |  |  |  | Hallez P (1890): from Luther 1963 (citation)- p. 132 | 
| U2 | Lago Maggiore (Verbano, Majeur, Locarno, Langensee), Switzerland | 2630 
  map | 1912 or earlier |  | 78 m |  |  | Schweiz, viele Fundorte, bis 1500 m ü.M. und 78 m Tiefe im Lago Maggiore. | Hofsten N v (1912): from Luther 1963 (citation)- p. 132 | 
| V2 | Graz (Gratz), Austria | 1963 
  map | 1909 or earlier |  |  |  |  |  | Bendl WE (1909): from Luther 1963 (citation)- p. 132 | 
| W2 | Hohe Tauern (Alti Tauri), Austria | 3564 
  map | 1925 or earlier |  |  |  |  |  | Meixner J (1925): from Luther 1963 (citation)- p. 132 | 
| X2 | Hungary (Ungarn) | 2457 
  map | 1913 or earlier |  |  |  |  |  | Graff Lvon (1913): from Luther 1963 (citation)- p. 132 | 
| Y2 | Lago Maggiore, Italy | 2624 
  map | 1950 or earlier |  |  |  |  |  | Steinböck O (1951): from Luther 1963 (citation)- p. 132 | 
| Z2 | Lago Maggiore, Italy | 2624 
  map | 1949 or earlier |  |  |  |  |  | Steinböck O (1949): from Luther 1963 (citation)- p. 132 | 
| A3 | Italy (Italien) | 4028 
  map | 1950 or earlier |  |  |  |  | Zentral Italien | Papi F (1952): from Luther 1963 (citation)- p. 132 | 
| B3 | Rovigno (Rovigno d'Istria, Rovinj), Croatia | 1146 
  map | 1933 or earlier |  |  |  |  | Jugoslavien:  Rovigno | Steinböck O (1933): from Luther 1963 (citation)- p. 132 | 
| C3 | Lisina (Lesina), Bosnia and Herzegovina | 2672 
  map | 1889 or earlier |  |  |  |  |  | Lippitsch K (1889): from Luther 1963 (citation)- p. 132 | 
| D3 | Plovdiv, Bulgaria | 5955 
  map | 1926 or earlier |  |  |  |  |  | Valkanov A (1926): from Luther 1963 (citation)- p. 132 | 
| E3 | Sofiya (Sofia), Bulgaria | 5835 
  map | 1926 or earlier |  |  |  |  |  | Valkanov A (1926): from Luther 1963 (citation)- p. 132 | 
| F3 | Pirin-Gebirge (Piringebirge, Pirin), Bulgaria | 5571 
  map | 1934 or earlier |  |  |  |  |  | Valkanov A (1934): from Luther 1963 (citation)- p. 132 | 
| G3 | Dorpat (Tartu, Terbata, Tartto, Derpt, Yurev, Yur'yev),  Estonia | 2451 
  map | 1885 or earlier |  |  |  |  | (Ph. megalops) | Braun M (1885): from Luther 1963 (citation)- p. 132 | 
| H3 | Baltikum (Estonia, Latvia, Lithuania, West Prussia , East Prussia and Memel | 5980 
  map | 1885 or earlier |  |  |  |  | (Ph. megalops) | Braun M (1885): from Luther 1963 (citation)- p. 132 | 
| I3 | Warszawa (Warschau, Varsavia, Varshava, Warsaw, Varsovie), Poland | 2674 
  map | 1926 or earlier |  |  |  |  |  | Gieysztor M (1926): from Luther 1963 (citation)- p. 132 | 
| J3 | Czechoslovakia (Tschechoslovakei) | 3872 
  map | 1880 or earlier |  |  |  |  |  | Vejdovsky F (1880): from Luther 1963 (citation)- p. 132 | 
| K3 | Saint Petersburg (Sankt-Peterburg, Petrogrado, Petrograd, Leningrad), Russia | 1708 
  map | 1924 or earlier |  |  |  |  |  | Nasonov NV (1877): from Luther 1963 (citation)- p. 132 | 
| L3 | Perm (Perm'), Russia | 5839 
  map | 1921 or earlier |  |  |  |  |  | Beklemischev VN (1921): from Luther 1963 (citation)- p. 132 | 
| M3 | Kirov (Wjatka, Киров, Khlynov , Kirow, Viatka, Vyatka, Vjatka), Russia | 5792 
  map | 1921 or earlier |  |  |  |  |  | Nasonov NV (1921): from Luther 1963 (citation)- p. 132 | 
| N3 | Murom (Murom am Oka, Муром) , Russia | 5793 
  map | 1940 or earlier |  |  |  |  |  | Corde WJ (1940): from Luther 1963 (citation)- p. 132 | 
| O3 | Saratov (Saretow, Saratow), Russia | 2638 
  map | 1902 or earlier |  |  |  |  | Wolga bei Saratov | Zykoff W (1902): from Luther 1963 (citation)- p. 132 | 
| P3 | Tien Shan(Tien-Shan, Tien Range, Tien Shan Mountains, T'ien-shan Shan-mo, T'ien-Shan Range, Thian Schan, Tyan' Shan', Thian Shan, Tienschan), Kyrgyzstan | 2737 
  map | 1908 or earlier |  |  |  |  | Tien-Schan, 3500 m ü.M., schwach salziger See, Gebiet des Lob-noor | Bendl WE (1908): from Luther 1963 (citation)- p. 132 | 
| Q3 | Amurskaya Oblast (Amur Oblast, Amurgebiet), Russia | 5834 
  map | 1950 or earlier |  |  |  |  |  | Beklemischev VN (1950): from Luther 1963 (citation)- p. 132 | 
| R3 | Khabarovsk (Chabarovsk, Chabarowsk), Russia | 5004 
  map | 1950 or earlier |  |  |  |  |  | Beklemischev VN (1950): from Luther 1963 (citation)- p. 132 | 
| S3 | Sumatra (Sumatera, Andalus,Andalas), Indonesia | 3929 
  map | 1933 or earlier |  |  |  |  | bis 1350 m ü.M. | Reisinger E (1933): from Luther 1963 (citation)- p. 132 | 
| T3 | Ason River near Santa Ulalla Sanctuary, Spain | 6235 
  map | 1997-1999 |  |  |  | Limnetic |  | Noreña C, Damborenea C, Faubel A & Brusa F (2007): 1992, 1994 | 
| U3 | Artificial spring in Ramales de la Victoria, Spain | 6237 
  map | 1997-1999 |  |  |  | Limnetic |  | Noreña C, Damborenea C, Faubel A & Brusa F (2007): 1992, 1994 | 
| V3 | Vieburger Gehölz in Kiel, Schleswig-Holstein, Germany | 6034 
  map | Apr 12, 1958 |  |  |  |  | Buchenwaldtümpel  (1 Ex.) | Rixen J-U (1961): 500 | 
| W3 | Schrevenborn, Schleswig-Holstein, Germany | 6004 
  map | Apr 19, 1956 |  |  |  |  | Buchenwaldtümpel  bei Schrevenborn (25 Ex.) | Rixen J-U (1961): 500 | 
| X3 | Hohner See, Schleswig-Holstein, Germany | 6535 
  map | May 18, 1956 |  |  |  |  | (1 Ex.) | Rixen J-U (1961): 500 | 
| Y3 | Hasseldieksdamm, Schleswig-Holstein, Germany | 6025 
  map | Mar 5, 1957 |  |  |  |  | Hasseldieksdammer Gehölz in Kiel, Buchenwaldtümpel (5 Ex.) | Rixen J-U (1961): 500 | 
| Z3 | Hasseldieksdamm, Schleswig-Holstein, Germany | 6025 
  map | Mar 11, 1957 |  |  |  |  | Hasseldieksdammer Gehölz in Kiel, Buchenwaldtümpel (1 Ex.) | Rixen J-U (1961): 500 | 
| A4 | Tannenberger Gehölz in Kiel, Schleswig-Holstein, Germany | 6033 
  map | Apr 2, 1957 |  |  |  |  | Teich im Tannenberger Gehölz in Kiel (6 Ex.) | Rixen J-U (1961): 500 | 
| B4 | Rosensee, Schleswig-Holstein, Germany | 6532 
  map | Jul 9, 1957 |  |  |  |  | Rosenfelder See, auf schlammigem Sandgrund (1 Ex.) | Rixen J-U (1961): 500 | 
| C4 | Selent, Schleswig-Holstein, Germany | 6536 
  map | Jun 3, 1957 |  |  |  |  | Selent, Abflussgraben der Meierei (10 Ex.) | Rixen J-U (1961): 500 | 
| D4 | Greifswald, Germany | 3485 
  map | 1848 or earlier | type locality |  |  |  | In den ersten Tagen des Januar wurde Derostomum Schmidtianum zuerst in der länge von 1" in einem kleinen Wiesengraben in ziemlicher Menge beobachtet. | Schultze Max (1851): 52 | 
| E4 | Elbe River, near Hamburg-Harburg, Germany | 530 
  map | 1903 or earlier |  |  |  |  |  | Volk R (1903): |