Species (40)
- Closterium aciculare
- Closterium acerosum
- Closterium aciculare ssp. subpr.
- Closterium angustatum
- Closterium amblyonema
- Closterium acutum
- Closterium attenuatum
- Closterium cornu
- Closterium cuspidatum
- Closterium costatum
- Closterium decorum
- Closterium dianae
- Closterium didymotocum
- Closterium gracils
- Closterium ehrenbergii
- Closterium elegans
- Closterium griffithii
- Closterium intermedium
- Closterium inaequale
- Closterium incurvum
- Closterium jenneri
- Closterium juncidum
- Closterium lunula
- Closterium lanceolatum
- Closterium leibleinii
- Closterium macilentum
- Closterium moniliferum
- Closterium obtusum
- Closterium obtusangulum
- Closterium praelongum
- Closterium pronum
- Closterium quadrangulare
- Closterium rostratum
- Closterium ralfsii
- Closterium setaceum
- Closterium strigosum
- Closterium turgidum
- Closterium uncinatum
- Closterium striolatum
- Closterium aciculare ssp. aciculare