Pacific-distribution

Guides

• Excirolana chiltoni

  sand piranha

  Excirolana chiltoni is a small intertidal isopod, commonly called 'sand piranha,' inhabiting sandy beaches of the Pacific Rim from Japan and Korea to Colombia. Adults reach approximately 8 mm in length and form dense aggregations exceeding 1,000 individuals. The species exhibits ovoviviparous reproduction with direct development, a 2-year lifespan, and pronounced spatial segregation during breeding.

  isopodcirolanidintertidalsandy-beachscavengerovoviviparousPacific-distributiontidal-migrationswarming