Nine-armed Sea Star

Luidia senegalensis

Markings and exact colorations may vary.

A large, flat sea star with nine slender arms, common on Gulf sand flats.

Typical size
6–14 in across
How often it turns up
Fairly common
Collecting
Check local rules

Photograph living animals and leave them in place. Live take may be regulated by license, location or harvest method; parks and protected areas can prohibit removal.

Handling
Photograph and release

How to tell it apart

  • Nine long, narrow arms
  • Grey-brown with a bristly edge
  • Flexible and floppy, not rigid

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.

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.

Browsing beaches and the full field guide is free. A free account logs unlimited finds and gives you three photo identifications a day.

Commonly confused with

  • Lined Sea StarLuidia clathrata

    Lined sea star has five arms; the nine-armed sea star usually has nine.

More tidepool life in the field guide

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