An amphipod attached to a dead paramuricid coral branch.
Amphipod
Image courtesy of the NOAA Office of Ocean Exploration and Research, Gulf of Mexico Expedition 2012. Download larger version (jpg, 1.4 MB).

An amphipod (white upper center), a shrimp-like crustacean, here less than one centimeter in length, attached to a dead paramuricid coral branch from which hydrozoans (grey) are extending. You can also see two flea-sized amphipods (red, below the white) on a hydroid branch.

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