Gattyana brunnea is a scale worm described from the North Pacific Ocean off the coast of California at a depth of about 550 m.[2] Gattyana brunnea is a short-bodied worm with 32 segments and 18 pairs of elytra, which bear a marginal fringe of papillae.

The lateral antennae are positioned terminally on the prostomium continuing along its margin.

Notochaetae are thinner than the neurochaetae.

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