| Gyrodactylidea | |
|---|---|
 | |
| Haptor of Gyrodactylus alexanderi found on Gasterosteus aculeatus (three-spined stickleback) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Platyhelminthes |
| Class: | Monogenea |
| Subclass: | Monopisthocotylea |
| Order: | Gyrodactylidea |
| Families | |
| |
Gyrodactylidea is an order of monogenean parasitic flatworms in the subclass Monopisthocotylea.
