Cell wall has the form of a rigid clear box, either semi-rectangular "shoe-box" like, or circular "hat-box" like, with fine ornamentation; may move by gliding; chloroplasts brown.
Please select cell shape.
Please select cell shape.
![[Cyclotella], X1000. Photo: Phil Novis, Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/cyclotella_meneghiniana_phil1000__FillMaxWzMwMCwyMDBd.jpg)
![[Meridion], X1600. Photo: Otago Regional Council & Manaaki Whenua](/assets/Tools-And-Resources/Identification/algae/meridion1600__FillMaxWzMwMCwyMDBd.jpg)