Striped Barnacle
Amphibalanus amphitrite
Markings and exact colorations may vary.
A small volcano-shaped barnacle with neat purple-brown vertical stripes.
- Typical size
- 0.25–0.75 in
- How often it turns up
- Very common
- Collecting
- Usually legal to collect
- Handling
- Sharp edges
Barnacles on beach debris are fine to keep. Do not scrape live barnacles off structures.
Dry barnacle plates have sharp edges — a common cause of cuts on wet rocks.
How to tell it apart
- Cone shape with a diamond-shaped opening on top
- Vertical purple or brown stripes on white
- Cemented firmly to whatever it grew on
Where to find these in Florida
Beaches rated very good or excellent for tidepool life. Each page shows today’s score, the best window and access details.
- Bathtub Reef Beach · Stuart
- Anne's Beach · Islamorada
- Bahia Honda State Park · Big Pine Key
- Bathtub Beach · Stuart
- Caspersen Beach · Venice
- Curry Hammock State Park · Marathon
- Fort Zachary Taylor Historic State Park · Key West
- Harry Harris Park · Tavernier
- Higgs Beach · Key West
- John Pennekamp Coral Reef State Park · Key Largo
- Long Key State Park · Long Key
- Marineland Beach · Marineland
Found one?
Photograph it and BeachNut ranks the likely matches with a confidence read, then logs it to your collection with the beach and date.
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More tidepool life in the field guide
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