Gnathophyllid shrimps (family Gnathophyllidae) are a taxon of tropical shrimp in the superfamily Palaemonoidea. They are colorful and very popular for aquariums. These animals dwell in coral reefs, where they live on a diet of starfish. This animal also has unusual front legs that are shaped like paddles. Harlequin shrimps grow only up to 2 inches.
