Hydractiniidae
| Hydractiniidae | |
|---|---|
| Hydractinia altispina | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Cnidaria | 
| Class: | Hydrozoa | 
| Order: | Anthoathecata | 
| Suborder: | Filifera | 
| Family: | Hydractiniidae L.Agassiz, 1862  | 
| Genera | |
| 
 see text  | |
| Synonyms | |
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Hydractiniidae is a cnidarian family of athecate hydroids.