| Protohydridae | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hydrozoa |
| Order: | Anthoathecata |
| Suborder: | Aplanulata |
| Family: | Protohydridae |
Protohydridae is a family of cnidarians belonging to the order Anthoathecata.
Genera:
- Protohydra Greeff, 1869
- Sympagohydra Piraino, Bluhm, Gradinger & Boero, 2008
