Sponge Fragment
Spongia and Ircinia species
A tough, spongy mass with a fibrous skeleton, often black or tan and full of holes.
- Typical size
- 2–12 in
- How often it turns up
- Common
- Collecting
- Check local rules
- Handling
- May be alive
Dried, detached sponge on the beach is usually fine. Commercial sponge harvest is separately regulated.
How to tell it apart
- Spongy but firm, springs back when squeezed
- Many holes and channels
- Black, tan or grey
Found one?
Photograph it and BeachNut will rank the likely matches, then log it to your collection.
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