Stenostomum leucops (Duges, 1828) | prior to 1974 | | | Numerous specimens. |
Stenostomum unicolor Schmidt, 1848 | prior to 1974 | | | |
Catenula lemnae Duges, 1832 | prior to 1974 | | | Numerous specimens. |
Plagiostomum lemani Forel & Du Plessis, 1874 | Sep 1965 | | | Numerous specimens among plants. |
Plagiostomum lemani Forel & Du Plessis, 1874 | Sep 1967 | | | Numerous specimens among plants. |
Plagiostomum lemani Forel & Du Plessis, 1874 | Sep 1969 | | | Numerous specimens among plants. |
Microdalyellia fusca (Fuhrmann, 1894) | 1974 or earlier | | | among plants. |
Gieysztoria cuspidata (Schmidt, 1861) | 1974 or earlier | | | among plants, very numerous. |
Gyratrix hermaphroditus Ehrenberg, 1831 | 1974 or earlier | | | among plants. |