| Microstomidae | |
|---|---|
| An adult Microstomum papillosum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Turbellaria |
| Order: | Macrostomida |
| Family: | Microstomidae |
| Genera | |
The Microstomidae are a family of small basal free-living flatworms (Macrostomida, Turbellaria, Platyhelminthes), and members of the marine, brackish, freshwater meiobenthos and plankton. There are currently about 40 named species in this family.