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Photo of a Banded Brittle Star

Species profile

Banded Brittle Star

Ophionereis annulata

Starfish/urchins/cucumbers2.9K iNat observations

At a glance

Banded Brittle Star (Ophionereis annulata) is an echinoderm present across the CatchRules coverage area but without species-specific bag, size, or season rules tracked in our regulatory dataset.

Confirmed by 2,484 research-grade iNaturalist observations, concentrated in California.

Notable details

  • Arms are distinctly patterned in alternating light and dark bands, giving the species its name.
  • Found from the Gulf of California south to Peru in rocky intertidal and shallow subtidal zones.
  • Can shed an arm instantly to distract a predator, then regrow it over time.
  • Lives beneath rocks and in crevices, emerging to feed on detritus and organic matter.
  • Moves by rowing its flexible arms in a coordinated, snake-like motion.

Background

Ophionereis annulata, commonly known as the banded brittle star, is a species of brittle star in the family Ophionereididae.

Background excerpt adapted from Wikipedia's Banded Brittle Star article (CC BY-SA). Visit Wikipedia for the full entry.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.