| Myostenostomum tauricum (Nasonov, 1924) | Aug 21, 1956 |  |  | 18 degrees C.  Water from Sphagnum pressed against bank. | 
| Stenostomum leucops leucops (Duges, 1828) | 1960 or earlier |  |  | Hylta. | 
| Dendrocoelum lacteum (Müller, 1773) | 1961 or earlier |  |  | Tenala, Hylta Långträsk.  [Ab. map area, p. 42 of Luther 1961]. | 
| Acrochordonoposthia robusta Luther, 1963 | 1963 or earlier |  |  | Hylta. | 
| Opistomum tundrae Nasonov, 1923 | Aug 21, 1956 |  |  | Tenala, Hylta Långträsk, mooriger Boden nahe dem Seeufer. | 
| Castrada (Castrada) instructa Hofsten N, 1907 | Aug 21, 1956 |  |  | Tenala, Hylta Långträsk, Ufer mit Sphagnum, 18.8º C. | 
| Castrada (Castrada) neocomensis Volz, 1898 | 1963 or earlier |  |  | Hylta Långträsk u. Moor Stormossen | 
| Rhynchoscolex simplex Leidy, 1852 | 1960 or earlier |  |  | Tenala, Hylta, sumpfiger Wald am Ufer des Långträsk, in kleinen Lachen mit Sphagnum, 16.3 ºC |