|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | "El Tigre" lake, Paraná River, near the city of Santa Fé, Argentina | 1582 
  map | Feb 1989-Jan 1990 |  |  |  | freshwater | many individuals reproducing asexually (chains of zooids). | Noreña-Janssen C (1995): 216-217 | 
| B | North of Vaag (Sudero), Faroes, Ryskidalur Lake, Faroe Islands | 366 
  map | Jun 22-Jul 19, 1928 |  |  |  | freshwater | large quantities in a bog-pool above the Ryskivatn NW of Vaag on Suderø, about 280 m above sea level. | Steinböck O (1931): 2 | 
| C | pond, in the suburb of Canindé (Caninde), north of the city of  São Paulo (San Paulo), Brazil | 1071 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| D | lake close to the river Tietê, in the suburb of Canindé (Caninde), city of  São Paulo (San Paulo), Brazil | 1668 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| E | Vila Leopoldina, east of Lapa a suburb of São Paulo, Brazil | 1669 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| F | Jardim, São Paulo, Brazil | 1670 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| G | river Pinheiros and its tributaries, near São Paulo (San Paulo), Brazil | 1018 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| H | Santa Rita do Passa Quatro (Santa Rita), interior State of São Paulo, Brazil | 1673 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| I | lake of the River Bariguy (Barigui), outskirts of Curitiba (Corityba, Curytiba),  Paraná, Brazil | 1672 
  map | prior to 1945 |  |  |  | freshwater | various times, found with Spirostomum ambigum. | Marcus Er (1945): 1, 2, 11, 12 | 
| J | Albemarle County, Virginia, USA | 1688 
  map | 1930 or earlier |  |  |  | freshwater | growing in old aquaria that have dense infusions with brown bacterial scums at their surfaces. | Kepner WM, Carter JS (1930): 301 | 
| K | Cork County, Ireland | 2114 
  map | prior to 1893 |  |  |  | freshwater | from Bennet's Lough, two miles northeast of Cork. | Hartog M (1893): ; from Young JO 1970 (citation)- p 213 | 
| L | London, England, United Kingdom | 2115 
  map | prior to 1913 |  |  |  | freshwater | in a neighborhood of London. | Whitehead H (1913): ; from Young JO 1970 (citation)- p 213 | 
| M | Theydon Bois, United Kingdom | 2116 
  map | prior to 1926 |  |  |  | freshwater |  | Jane FW (1926): ; from Young JO  1970 (citation)- p 213 | 
| N | Strawberry Hill, United Kingdom | 2117 
  map | prior to 1926 |  |  |  | freshwater |  | Jane FW (1926): ; from Young JO  1970 (citation)- p 213 | 
| O | Epping Forest, United Kingdom | 2118 
  map | prior to 1926 |  |  |  | freshwater |  | Jane FW (1926): ; from Young JO  1970 (citation)- p 213 | 
| P | Shannon River, Ireland | 2119 
  map | prior to 1936 |  |  |  | freshwater | from weeds in River Shannon at Hayes Channel. | Southern R (1936): ; from Young JO  1970 (citation)- p 213 | 
| Q | Portumna, Ireland | 2120 
  map | prior to 1936 |  |  |  | freshwater | bog. | Southern R (1936): ; from Young JO  1970 (citation)- p 213 | 
| R | Carrigahorig, Ireland | 2121 
  map | prior to 1936 |  |  |  | freshwater | bog. | Southern R (1936): ; from Young JO  1970 (citation)- p 213 | 
| S | Lorrha, Ireland | 2122 
  map | prior to 1936 |  |  |  | freshwater |  | Southern R (1936): ; from Young JO  1970 (citation)- p 213 | 
| T | Tiobraid Arann (Tipperary), Ireland | 2123 
  map | prior to 1936 |  |  |  | freshwater |  | Southern R (1936): ; from Young JO  1970 (citation)- p 213 | 
| U | Kennet-Avon Canal, United Kingdom | 2124 
  map | Jul 11, 1943 |  |  |  | freshwater | unpublished data from British Museum specimens. | Young JO (1970): 213 | 
| V | Berkshire (Berks), United Kingdom | 2125 
  map | Jul 11, 1943 |  |  |  | freshwater | unpublished data from British Museum specimens. | Young JO (1970): 213 | 
| W | Cronton, United Kingdom | 2126 
  map | 1965-1967 |  |  |  | freshwater | near Cronton. | Young JO (1970): 213 | 
| X | Southeastern New York State, USA | 2196 
  map | prior to 1987 |  |  |  | freshwater | interstitial, 6 specimens. | Kolasa J, Strayer D, Bannon-O'Donnell E (1987): 127 | 
| Y | Razelm-Sinoë, Northern Bay-Sulina, Romania | 2575 
  map | prior to 1974 |  |  |  | freshwater | Numerous specimens. | Mack-Fira V (1974): 252 | 
| Z | Razelm-Sinoë, Siut-Ghiol Lake (Siutghiol, Siut Griol), Romania | 2574 
  map | prior to 1974 |  |  |  | freshwater | Numerous specimens. | Mack-Fira V (1974): 252 | 
| A1 | Razelm-Sinoë, Tasaul Lake (Tashaul), Romania | 2573 
  map | prior to 1974 |  |  |  | freshwater | Numerous specimens. | Mack-Fira V (1974): 252 | 
| B1 | Razelm-Sinoë, Razelmul Mare (Dolosman), Golovitza, Portitza, Sinoë Lake (Grindul Lupilor), Danube Delta, Romania | 2572 
  map | prior to 1974 |  |  |  | freshwater | Numerous specimens. | Mack-Fira V (1974): 252 | 
| C1 | Danube Delta, Romania | 2576 
  map | prior to 1974 |  |  |  | freshwater | the delta and the flooded area. | Mack-Fira V (1974): 252 | 
| D1 | Retezat (Retiezat, Retezatul) Mountains, Romania | 2577 
  map | prior to 1974 |  |  |  | freshwater | alpine lakes. | Mack-Fira V (1974): 252 | 
| E1 | Plain of Romania (Romanian Plain), Ilfov County, Romania | 2590 
  map | 1974 or earlier |  |  |  | freshwater | the Romanian Plain. | Mack-Fira V (1974): 252 | 
| F1 | Idwall, Caernarvonshire (Caernarvon, Carnarvonshire, Arfon), North Wales, United Kingdom | 3349 
  map | Nov 1968 - Oct 1969 |  | littoral |  | freshwater | calcium poor lake (2.0 mg/l). | Young JO (1973): 204 | 
| G1 | Valencia (Valence, Valenza), Spain | 3861 
  map | 1931 or earlier |  |  |  |  | found in the vicinity of Valence. | Gieysztor M (1931): abstract | 
| H1 | Leningrad Province (Sankt-Peterburg, Saint Petersburg), Russia | 3893 
  map | 1926 or earlier |  |  |  |  | Leningrad province. | Nasonov NV (1926): abstract | 
| I1 | Lausanne, Switzerland | 4093 
  map | 1897 or earlier |  |  |  |  | Marsh near Vichy w. von Lausanne (am Einfluss des Flon in den Léman) | Du Plessis G (1897): from Hofsten 1912 (citation)- p. 599; and from Hofsten & Steinmann (citation)- p. 706 | 
| J1 | Bellerive, Switzerland | 4095 
  map | 1897 or earlier |  |  |  |  | Léman, Ueberschwemmungsufer bei Bellerive (la Gabiule). | Du Plessis G (1897): from Hofsten 1912 (citation)- p. 599; and from Hofsten & Steinmann (citation)- p. 706 | 
| K1 | Lac de Neuchatel (Neuenburger See, Neuenburg, Neuenburgersee, Neuchâtel), Switzerland | 2751 
  map | 1906 or earlier |  |  |  |  | Zwei Tümpel auf dem Pouillere (Neuchateler Jura, 1220 bis 1240 m ü M.). | Thiébaud M, Favre J (1906): from Hofsten 1912 (citation)- p. 599; and from Hofsten & Steinmann (citation)- p. 706; Thiébaud & Favre 1906 (citation) | 
| L1 | Albufera de Valencia (Albufera, La Albufera), Spain | 4994 
  map | Sep 1929 |  |  |  |  |  | Gieysztor M (1931): 128 | 
| M1 | Kaltenhof, Schleswig-Holstein, Germany | 5989 
  map | Jul 10, 1957 |  |  |  |  | Kaltenhofer Moor (1.Ex) | Rixen J-U (1961): 470 | 
| N1 | Hasenmoor, Schleswig-Holstein, Germany | 5990 
  map | Oct 18, 1957 |  |  |  |  | Hasenmoor bei Brandsbek (sehr häufig) | Rixen J-U (1961): 470 | 
| O1 | Kroog, Schleswig-Holstein, Germany | 5991 
  map | Oct 22, 1957 |  |  |  |  | Moor in Kiel-Kroog (sehr häufig) | Rixen J-U (1961): 470 | 
| P1 | Elmschenhagen, Schleswig-Holstein, Germany | 5992 
  map | Oct 22, 1957 |  |  |  |  | Kiel-Emlschenhagen, Moor, im Sphagnum (25 Ex.) | Rixen J-U (1961): 470 | 
| Q1 | Lebrader Teich, Schleswig-Holstein, Germany | 5993 
  map | Nov 5, 1957 |  |  |  |  | Lebrader Moor  (wenige Ex.) | Rixen J-U (1961): 470 | 
| R1 | Lebrader Teich, Schleswig-Holstein, Germany | 5993 
  map | 1951 |  |  |  |  | in der Seerosenzone von Seen nachgewiesen. | Bülow T von (1951): from Rixen 1961 (citation)- p. 470 | 
| S1 | Arnoia River near O Viso, Spain | 6220 
  map | 1997-1999 |  |  |  | Limnetic |  | Noreña C, Damborenea C, Faubel A & Brusa F (2007): 1992, 1993 | 
| T1 | Ribadil River in Riba de Mouro, Spain | 6221 
  map | 1997-1999 |  |  |  | Limnetic |  | Noreña C, Damborenea C, Faubel A & Brusa F (2007): 1992, 1993 | 
| U1 | Lake Nicola, Brazil | 7743 
  map | Jun 23, 2018 |  |  |  |  |  | Reyes J,  Binow D, Vianna RT, Brusa S, Martins SE (2021): 4 | 
| V1 | Lake Nicola, Brazil | 7743 
  map | Feb 28, 2019 |  |  |  |  |  | Reyes J,  Binow D, Vianna RT, Brusa S, Martins SE (2021): 4 | 
| W1 | Lake Mangueira, Brazil | 7745 
  map | Jun 24, 2018 |  |  |  |  |  | Reyes J,  Binow D, Vianna RT, Brusa S, Martins SE (2021): 4 | 
| X1 | Lake Mangueira, Brazil | 7745 
  map | Feb 18, 2019 |  |  |  |  |  | Reyes J,  Binow D, Vianna RT, Brusa S, Martins SE (2021): 4 | 
| Y1 | Lake Mangueira, Brazil | 7745 
  map | Jun 5, 2019 |  |  |  |  |  | Reyes J,  Binow D, Vianna RT, Brusa S, Martins SE (2021): 4 | 
| Z1 | Buttahatchee River, Greenwood Springs, Monroe County, Mississippi | 7823 
  map | Apr 2008 - Mar 2009 |  |  |  |  | ....."Buttahatchee River backwater location"...."Floodplain backwater pond" | Glasgow B (2021): 189, 192, 193 | 
| A2 | Tenn-Tom Waterway, Smithville, Mississippi | 7833 
  map | May 2006 - Apr 2020 |  |  |  |  |  | Glasgow B (2021): 189, 193 | 
| B2 | Lake Estates, Nettleton, Lee County, Mississippi | 7822 
  map | May 2006 - Apr 2020 |  |  |  |  |  | Glasgow B (2021): 189, 193 |