Clionaidae
| Clionaidae | |
|---|---|
| Modern clionaid borings in an oyster shell | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Porifera | 
| Class: | Demospongiae | 
| Order: | Clionaida | 
| Family: | Clionaidae d'Orbigny, 1851 | 
| Genera | |
| See text | |
| Synonyms | |
| 
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Clionaidae is a family of ectoparasitic demosponges which are found worldwide. This group of sponges are well known for boring holes in calcareous material such as mollusc shells and coral skeletons, using both chemical and mechanical processes.