Strassburg, Germany    (Ref.: Graff Lvon 1874)

Neudorf, Switzerland    (Ref.: Fuhrmann O 1894)

Leiden, Netherlands    (Ref.: Graff Lvon 1882)

Lundenburg in Mähren (Maehren), Germany    (Ref.: Graff Lvon 1882)

Pancsova (Pancevo, Panciova, Pantschowa) in South Hungary (Ungarn), in the Vojvodina region, now part of Serbia    (Ref.: Graff Lvon 1882)

Odesa (Odessa), Odes'ka Oblast, Ukraine    (Ref.: Graff Lvon 1882)

Missoula, Montana, USA    (Ref.: Hyman LH 1957)

Montana, USA    (Ref.: Hyman LH 1957)

State of Florida, USA    (Ref.: Hyman LH 1957)

Virginia, USA    (Ref.: Hyman LH 1957)

Between Eldoret (Olderet, Olteret) and Nakuru, Kenya    (Ref.: Young JO, Young BM 1976)

Lake Naivasha (Enaiposha), Rift Valley, Kenya    (Ref.: Young JO, Young BM 1976)

Karen, Nairobi Area, Kenya    (Ref.: Young JO, Young BM 1976)

Kenya    (Ref.: Young JO, Young BM 1976)

Oppenheim, Germany    (Ref.: Luther A 1963)

Gernsheim, Germany    (Ref.: Luther A 1963)

Tvärminneträsket (Tvärminne träsk, Tvärminneträsk), Finland    (Ref.: Luther A 1963)

Skogbyträsket (Skogbyträsk, Skogby träsk), Finland    (Ref.: Luther A 1963)

Janakkala, Finland    (Ref.: Luther A 1963)

Puujoki, Finland    (Ref.: Luther A 1963)

Dorpat (Tartu, Terbata, Tartto, Derpt, Yurev, Yur'yev), Estonia    (Ref.: Braun M 1885)

Lunz am See (Lunz), Austria    (Ref.: Meixner J 1915)

Graz (Gratz), Austria    (Ref.: Meixner J 1915)

Schleswig-Holstein, Germany    (Ref.: Rixen J-U 1961)

Illinois River, Illinois, USA    (Ref.: Woodworth WM 1897)

Flon, Switzerland    (Ref.: Keller J 1894)

Lausanne, Switzerland    (Ref.: Keller J 1894)

Zürichsee (Zürcher See, Züricher See, Lake of Zurich, Lago di Zurigo, Zurcher), Zurich, Switzerland    (Ref.: Keller J 1894)

Donaustadt (Donau Gebiet, Danube Area), Austria    (Ref.: An der Lan H 1962)

Lake Titicaca, Peru    (Ref.: Beauchamp Pde 1939)

Kaluga (Kalouga, Kalyga, Kanyra), Russia    (Ref.: Beklemischev VN 1917)

Saint Petersburg (Sankt-Peterburg, Petrogrado, Petrograd, Leningrad), Russia    (Ref.: Nasonov NV 1926)

Perm (Perm'), Russia    (Ref.: Beklemischev VN 1921)

Orenburg (????????, Chkalov, Tschkalow), Russia    (Ref.: Beklemischev VN 1921)

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    (Ref.: Bendl WE 1908)

Denmark (Dänemark)    (Ref.: Graff Lvon 1913)

Poland (Polen)    (Ref.: Gieysztor M 1939)

Pond, in the suburb of Canindé (Caninde), north of the city of São Paulo (San Paulo), Brazil    (Ref.: Marcus E 1943)

North of France (Nordfrankreich)    (Ref.: Hallez P 1890)

Brienzersee (Brienzer See, Lake of Brienz), Switzerland    (Ref.: Hofsten N v 1907)

Switzerland    (Ref.: Hofsten N v 1912)

Ohio, USA    (Ref.: Graff Lvon 1913)

New York, USA    (Ref.: Husted L, Ruebush TK 1940)

Connecticut, USA    (Ref.: Husted L, Ruebush TK 1940)

Trinidad, Trinidad and Tobago    (Ref.: Kennel J v 1888)

Finland (Finnland, Finlyandiya, Finlandia, Finlande, Suomen Tasavalta, Suomi)    (Ref.: Luther A 1918)

Tremembe (Cantareira mountains), near São Paulo (San Paulo), Brazil    (Ref.: Marcus E 1946)

Utah, USA    (Ref.: Mulaik S 1947)

Tervajärvi, Finland    (Ref.: Nasonov NV 1917)

Salojärvi, Finland    (Ref.: Nasonov NV 1917)

Gvardeyskoye (???????????, Karisalmi), Russia    (Ref.: Nasonov NV 1917)

Saratov (Saretow, Saratow), Russia    (Ref.: Nasonov NV 1921)

Kirov (Wjatka, ?????, Khlynov , Kirow, Viatka, Vyatka, Vjatka), Russia    (Ref.: Nasonov NV 1921)

Leningrad Province (Sankt-Peterburg, Saint Petersburg), Russia    (Ref.: Nasonov NV 1926)

Lake Baikal (Baykal, Holy Sea), Russia    (Ref.: Nasonov NV 1926)

Italy (Italien)    (Ref.: Stella E 1951)

Bologoye (Bologoje), Russia    (Ref.: Plotnikow W 1900)

Poluostrov Kamchatka (Kamchatka Peninsula, Kamchatskiya, Kamtschatka, Kamtchatka), Russia    (Ref.: Sabussowa Z 1929)

Dresden, Germany    (Ref.: Schorler B, Thallwitz J 1906)

Ireland (Irland)    (Ref.: Southern R 1936)

County Louth, Ireland    (Ref.: Southern R 1936)

Lago Maggiore, Italy    (Ref.: Steinböck O 1932)

Lago di Como (Larius Lacus, Lario), Lombardia, Italy    (Ref.: Steinböck O 1932)

Lago di Garda (Benaco), Italy    (Ref.: Steinböck O 1932)

New Zealand    (Ref.: Stout VM 1953)

Nebraska, USA    (Ref.: Stringer CE 1909)

Bandar-e Anzali (Enseli, Pechlevi, Enzeli, Enceli, Pahlevi) harbour, Caspian Sea, Iran    (Ref.: Tarnogradsky DA 1926)

Bulgaria (Bulgarien)    (Ref.: Valkanov A 1934)

Northern Italy    (Ref.: Vialli M 1926)

Kurmark, Germany    (Ref.: Weise M 1942)

New Baltimore, Lake St. Clair, Michigan, USA    (Ref.: Woodworth WM 1896)

Australia    (Ref.: Kolasa J, Schwartz SS 1988)

Kansas, USA    (Ref.: Graff Lvon 1913)

France (Frankreich)    (Ref.: Graff Lvon 1913)

Netherlands (Holland)    (Ref.: Graff Lvon 1913)

Austria (Österreich)    (Ref.: Graff Lvon 1913)

Russia    (Ref.: Graff Lvon 1913)

Tomsk, Siberia, Russia    (Ref.: Plotnikow W 1905)

Charca Jockey, San Carlos de Bariloche, Rio Negro, Agentina    (Ref.: Noreña-Janssen C 1995)

Bank of Nirihuau River, San Carlos de Bariloche, Rio Negro, Agentina    (Ref.: Noreña-Janssen C 1995)

|quot;El Tigre|quot; lake, Paraná River, near the city of Santa Fé, Argentina    (Ref.: Noreña-Janssen C 1995)

Krakau (Krakow, Cracovia, Krakov, Cracovie, Cracow), Poland    (Ref.: Schmidt O 1857)

Giessen, Germany    (Ref.: Schneider A 1873)

Praha (Prague, Cheshskaya Praga, Praga, Prag), Czech Republic    (Ref.: Vejdovsky F 1880)

Western and middle, Czech Republic (Böhmen, Bohmen, Bohemia)    (Ref.: Vejdovsky F 1880)

Klosterneuburg, Austria    (Ref.: Spandl H 1925)

Cambridge, United Kingdom    (Ref.: Gamble FW 1896)

Anieres, Switzerland    (Ref.: Du Plessis G 1897)

Lake Geneva (Genfer, Genfersees, Ginevra, Geneve, Leman, Lac Léman, Lemano), Switzerland    (Ref.: Du Plessis G 1897)

Lac de Neuchatel (Neuenburger See, Neuenburg, Neuenburgersee, Neuchtel), Switzerland    (Ref.: Monard A 1919)

Charkov (Kharkiv, Charkow, Khar'kov, Kharkow), Ukraine    (Ref.: Markow M 1903)

Siberia (Siberie, Sibirien, Sibir'), Russia    (Ref.: Plotnikow W 1905)

Sevana Lake (Sevana Lich, Gokchai, Gokcha, Sevangha, Goktschasee, Kegharkunik, Goktscha Sees), Armenia    (Ref.: Plotnikow W 1906)

Ely, near Cambridgeshire, United Kingdom    (Ref.: Perkins M 1928)

Moskva (Moskau, Moskwa, Moscow, Moscou), Russia    (Ref.: Nasonov NV 1877)

From the provinces of Avila, Cuenca, Guadalajara, Madrid and Segovia, Peninsula Iberica (Iberian Peninsula, Peninsula Hispanica), Spain    (Ref.: Farias F, Gamo J, Norena-Janssen C 1996)

Ivanovo (Ivanovo-Vosnesensk, Ivanovo-Voznesensk, Ivanovo-Vosnessensk ???????, Iwanowo), Russia    (Ref.: Cordé WJ 1923)