|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Vaagfjord (Sudero), Faroes, Faroe Islands | 274 
  map | 1928 |  | 10 m | mud |  | fine sand, animal  "perished before it was squeezed.  According to habitus, position of eyes and of the pharynx it is probably Enterostomum fingalianum Claperede." | Steinböck O (1931): 20 | 
| B | Isafjorour, (Ísafjörður, Isafjorour, Isafjordhur), Iceland | 378 
  map | 16-26 July, 1937 |  |  |  |  | shallow water, in algae on fine sand mixed with mud, east of Isafjorour, 1 specimen. | Steinböck O (1938): 21 | 
| C | Woods Hole,Cape Cod, Massachusetts, USA | 223 
  map | between May and Aug 1907 | type locality |  |  |  | 3 whole specimens from Butlers Point and Grass Island. | Graff Lvon (1911): 401 | 
| D | Lafayette River, Norfolk, Virginia, USA | 1880 
  map | 1948 or earlier |  | shallow |  | brackish | from collection records ranging 1931 thru 1948.  from shallows of river.  [authors cited Cylindrostomum triste (Graff) as species] | Ferguson FF, Jones ER (1949): 436, 439 | 
| E | Tolstik (Mys Tolstik), White Sea (Weisses Meer, Beloye More) | 2775 
  map | 1913 or earlier |  |  |  |  |  | Graff Lvon (1913): 412 | 
| F | east coast Skye Island (Sky), Hebrides, Scotland, United Kingdom | 1210 
  map | 1913 or earlier |  |  |  |  |  | Graff Lvon (1913): 412 | 
| G | Plymouth, England (English Channel) | 255 
  map | 1913 or earlier |  | 33-40 m |  |  |  | Graff Lvon (1913): 412 | 
| H | Strait of Dover (Pas de Calais) | 2774 
  map | 1913 or earlier |  | 33-40 m |  |  |  | Graff Lvon (1913): 412 | 
| I | Gasovik (Gåsövik), Gullmarsfjord (Gullmarsfjorden), Sweden | 2370 
  map | 1945 |  |  |  |  | among algae | Westblad E (1955): 502 | 
| J | Flatholmen, Goteborgs och Bohus Lan, Sweden | 2845 
  map | 1949 |  |  |  |  | among red algae | Westblad E (1955): 502 | 
| K | Marine Biological Station, outside Espegrend, Bergen, Hordaland, Norway | 534 
  map | 1950 or earlier |  | 15-20 m |  |  | Bukka Sound, Laminaria stalks.  Station 58/51, 81/51, and 29/53. | Westblad E (1955): 502 | 
| L | Hjellestad, Hordaland Fylke, Norway | 2059 
  map | 1950 or earlier |  | 30 m |  |  | station 18/53. | Westblad E (1955): 502 | 
| M | Herdla (Herlo), off  Bergen, Norway | 56 
  map | 1950 or earlier |  | 15 m |  |  | Osund, station 25/53 | Westblad E (1955): 502 | 
| N | Hamoaze estuary, United Kingdom | 1333 
  map | Jul 26, 1949 |  |  |  |  |  | Westblad E (1955): 502 | 
| O | Cullercoats Bay, United Kingdom | 1330 
  map | Jul 1, 1950 |  | tide pool |  |  | with Corallina. | Westblad E (1955): 502 | 
| P | Tolstik (Mys Tolstik), White Sea (Weisses Meer, Beloye More) | 2775 
  map | 1932 or earlier |  |  |  |  | under algae. | Steinböck O (1932): 326 | 
| Q | Wembury Bay, United Kingdom | 1329 
  map | Aug-Sep 1892 |  |  |  |  | Abundant among Florideae, Wembury Bay. | Gamble FW (1893): 43 | 
| R | Millbay Channel, Plymouth Sound, Plymouth, United Kingdom | 4970 
  map | Aug-Sep 1892 |  |  |  |  | Millbay Channel, This channel (varying in depth from 18-21 fathoms)... | Gamble FW (1893): 38 |