| Microdalyellia armigera (Schmidt, 1862) | 1967 or earlier |  |  | sources and rivulets of the Bucegi Mountains, in glacial lakes (the Retezat Mountains, southern Carpathians), in the sources of the Romanian Plain. | 
| Bresslauilla relicta Reisinger, 1929 | 1970 or earlier |  |  | in the sources and the stagnant basins of the Romanian Plain. | 
| Catenula lemnae Duges, 1832 | 1974 or earlier |  |  | the Romanian Plain. | 
| Microdalyellia fusca (Fuhrmann, 1894) | 1967 or earlier |  |  | sources of the Romanian Plain and Carpathian Mountains. | 
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1968 or earlier |  |  | the stagnant waters from Transylvania and the Romanian Plain. | 
| Typhloplana viridata (Abildgaard, 1789) | 1970 or earlier |  |  | the stagnant freshwater of the Romanian Plain and Transylvania. | 
| Strongylostoma radiatum (Müller, 1774) | 1974 or earlier |  |  | the stagnant freshwater basins of the Romanian Plain. | 
| Castrada (Castrada) viridis Volz, 1898 | 1974 or earlier |  |  | in the stagnant freshwaters of the Romanian Plain and Transylvania. | 
| Papiella otophthalma (Plotnikow, 1906) | 1970 or earlier |  |  | In the Danube swamps (delta and the flooded plains), Snagov and Herastrau Lakes (Romanian Plain). | 
| Phaenocora unipunctata (Ørsted, 1843) | 1970 or earlier |  |  | In the Carpathian sources and the stagnant freshwater basins of the Romanian Plain. |