| Mesostoma flavidum Graff, 1882 | prior to 1882 |  |  | one specimen in freshwater marsh | 
| Faerlea glomerata Westblad, 1945 | prior to 1975 | 30 m | clay |  | 
| Hallangia proporoides Westblad, 1946 | prior to 1975 | 20 m | clay |  | 
| Dalyellia schmidtii (Graff, 1882) | 1913 or earlier |  |  | moor water | 
| Ulianinia mollissima Levinsen, 1879 | 1963 or earlier |  |  | Karling notes distribution of the species.  Millport (Great Cumbrae Island, Little Cumbrae Island). | 
| Gyratrix proavus Meixner, 1929 | prior to 1954 | 20-80 m |  | Lehmboden. | 
| Paravortex karlingi Pike & Burt, 1981 | 1981 or earlier |  |  | collected from the intestine of the bivalve mollusc Cerastorderma edule. | 
| Paravortex cardii Hallez, 1908 | 1981 or earlier |  |  | collected from the intestine of the bivalve mollusc Cerastorderma edule. | 
| Globuliphora rufifrons Westblad, 1952 | 1948 | 30-35 m |  | Millport on the west coast of Scotland (NE of Great Cumbrae Island, 30-35 m); SW of Little Cumbrae Island, c. 80 m). |