Colonial chlorophyte with spherical cells usually in groups of 4 or 8, often connected to other groups via the remnants of parent cell walls. Single cup-shaped chloroplast.
Found in the plankton of nutrient-rich ponds including sewage ponds
![[Westella] (sewage pond), X400. Photo: Manaaki Whenua Image](/assets/Tools-And-Resources/Identification/algae/westella400__ScaleWidthWzEwMjRd.jpg)