| Species names in Latin | Category of the Red Data Book of Belarus | IUCN Category |
| Fragilaria arcus (Ehrenberg) Cleve | III | VU |
| Pinnularia polyonca (Breb.) Mull | I | CR |
| Stenopterobia curvula (W.Sm.) Kramer | I | CR |
| Stenopterobia dalicatissima (Lewis) Breb. | II |
EN |
