| Division | Charophyta |
| Class | Zygnematophyceae |
| Order | Desmidiales |
| Family | Desmidiaceae |
| Basionym | Arthrodesmus convergens var. depressum Woloszynska |
Cells medium size, 2 radiate, cells broader than long or slightly as long as broad measures 36-43 µm in length and 41-48 µm breadth. Cells deeply constricted, sinus broadly open outside, isthmus 10-13 µm. Semicells broadly cuneate to sub-cuneate with slightly convex basal angles and apical angles ending with stout, downwards projected spine, 14-20 µm length. Semicells ellipsoid in vertical view.
Ecology
Tychoplankton of acidic, oligotrophic waters bodies.