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Coral ReefFish

Southern Flounder

Paralichthys lethostigma

A sideways sand ninja with both eyes upstairs.

Southern Flounders begin life swimming upright with one eye on each side. As they grow, one eye migrates and the fish settles flat against the seafloor as a camouflaged hunter.

Find this SeaPal in the card gallery
SeaRealm card featuring Southern Flounder

From field guide to game table

Bring this Southern Flounder home

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2 decks

Quick dive

Creature passport

Home
Western Atlantic bays, estuaries, rivers, and sandy coastal bottoms.
Favorite foods
Fishes, shrimp, and other crustaceans ambushed from the bottom.
Size check
Up to about 3 ft (90 cm) — yardstick length

Tell-your-friends facts

Four wonderfully wild things

  1. 1

    Both adult eyes sit on the left side of the head.

  2. 2

    Newly hatched larvae look more like ordinary upright fish.

  3. 3

    Young fish use low-salinity estuaries as nursery habitat.

  4. 4

    Sharp teeth help it seize fast-moving prey.

Ocean superpower

Built to be amazing

It changes shade and buries itself until only its eyes show.

Junior scientist tip

What should I look for?

Scan the sand for two raised eyes and the outline of a flat body.

Grown-up research links

We used trusted science organizations to check this profile.