Dalyellia armigera (Schmidt, 1861) Graff, 1905 accepted as Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 (additional source)
Microstomum rubromaculatum Graff, 1882 (additional source)
Polycystis crocea (Fabricius, 1826) Graff, 1905 accepted as Graffiellus croceus (Fabricius, 1826) Hornung, 2016 (additional source)
Polycystis hibernica Southern, 1936 accepted as Rogneda hibernica (Southern, 1936) Karling, 1953 (original description)
Polycystis naegelii Kölliker, 1845 (additional source)

Celtic Seas for Utelga heinckei (Attems, 1897) Karling, 1954 
Celtic Seas for Utelga heinckei (Attems, 1897) Karling, 1954 
Coast of Ireland for Plagiostomum pseudomaculatum (Gamble, 1893) 
Coast of Ireland for Plagiostomum siphonophorum (Schmidt, 1852) 
Coast of Ireland for Promesostoma ovoideum (Schmidt, 1852) Graff, 1882 
Coast of Ireland for Provortex balticus (Schultze, 1851) Graff, 1882 
Coast of Ireland for Proxenetes gracilis Graff, 1882 
Coast of Ireland for Proxenetes tuberculatus Graff, 1882 
Coast of Ireland for Trigonostomum intermedium (Attems, 1896) Graff, 1905 
Galway Bay for Microstomum rubromaculatum Graff, 1882 
Ireland for Bothromesostoma personatum (Schmidt, 1848) Braun, 1885 
Ireland for Bothromesostoma personatum (Schmidt, 1848) Braun, 1885 
Ireland for Castrada (Castrada) armata (Fuhrmann, 1894) Luther, 1904 
Ireland for Castrella (Castrella) truncata (Abildgaard, 1789) Sekera, 1906 
Ireland for Catenula lemnae Duges, 1832 
Ireland for Catenula lemnae Duges, 1832 
Ireland for Catenula lemnae Duges, 1832 
Ireland for Catenula lemnae Duges, 1832 
Ireland for Catenula lemnae Duges, 1832 
Ireland for Dalyellia viridis (Shaw, 1791) Graff, 1905 
Ireland for Dolichoplana feildeni Graff, 1899 
Ireland for Geocentrophora sphyrocephala de Man, 1876 
Ireland for Gyrator hermaphroditus (Ehrenberg, 1831) Ehrenberg, 1835 
Ireland for Mesostoma ehrenbergii (Focke, 1836) Örsted, 1843 
Ireland for Mesostoma ehrenbergii (Focke, 1836) Örsted, 1843 
Ireland for Mesostoma lingua (Abildgaard, 1789) Schmidt, 1848 
Ireland for Mesostoma lingua (Abildgaard, 1789) Schmidt, 1848 
Ireland for Microdalyellia armigera (Schmidt, 1862) Gieysztor, 1938 
Ireland for Otomesostoma auditivum (Forel & Du Plessis, 1874) Hofsten, 1907 
Ireland for Otomesostoma auditivum (Forel & Du Plessis, 1874) Hofsten, 1907 
Ireland for Phaenocora unipunctata (Ørsted, 1843) Bendl, 1908 
Ireland for Phaenocora unipunctata (Ørsted, 1843) Bendl, 1908 
Ireland for Plagiostomum lemani Forel & Du Plessis, 1874 
Ireland for Prorhynchus stagnalis Schultze, 1851 
Ireland for Rhynchomesostoma rostratum (Müller, 1774) Luther, 1904 
Ireland for Rogneda hibernica (Southern, 1936) Karling, 1953 
Ireland for Stenostomum leucops (Duges, 1828) Schmidt, 1848 
Ireland for Stenostomum leucops (Duges, 1828) Schmidt, 1848 
Ireland for Stenostomum unicolor Schmidt, 1848 
Ireland for Typhloplana viridata (Abildgaard, 1789) Ehrenberg, 1831 
Irish Sea for Rogneda hibernica (Southern, 1936) Karling, 1953 
South Coast of Ireland for Uteriporus vulgaris Bergendal, 1890 
United Kingdom for Uteriporus vulgaris Bergendal, 1890