Labroides

This is a genus of small, brightly colored reef fish who are best known for their method of feeding. Commonly called "cleaner wrasses" these fish make a living by picking off ectoparasites, scales and mucus from fishes. They solicit these feedings by swimming with a characteristic bobbing motion. This service is so valuable to the clients that the cleaner wrasses are often seen feeding inside the mouths and gills of predatory fish like groupers and snappers.

Labroides is a genus of wrasses native to the Indian and Pacific Oceans. This genus is collectively known as cleaner wrasses, and its species are cleaner fish.