David Fleetham / Spotted cleaner shrimp (Periclimenes yucatanicus) on its host anemone, Bonaire, Caribbean.

Franco Banfi / Giant Caribbean sea anemone (Condylactis gigantea) with Spotted cleaner shrimp (Periclimenes yucatanicus) Santa Lucia, Camaguey, Cuba. Caribbean Sea, Atlantic Ocean

Pete Oxford / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Bonaire, Netherlands Antilles, Caribbean

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Luciano Candisani / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Giant Caribbean Anemone (Condylactis gigantea), Santa Barbara Island, Abrolhos Islands, Bahia, Brazil

Claudio Contreras / Spotted cleaner shrimp (Periclimenes yucatanicus) amongst tentacles of Giant anemone (Condylactis gigantea) Puerto Morelos National Park, Caribbean Sea, Mexico, January

Scott Leslie / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on anemone, Bonaire, Caribbean

Doug Perrine / Spotted cleaner shrimp {Periclimenes yucatanicus} in Giant sea anemone {Condylactis gigantea} Dominica, Caribbean

Fred Bavendam / Spotted Cleaner Shrimp (Periclimenes yucatanicus) on Sea Anemone, Bonaire

Doug Perrine / Spotted cleaner shrimp in symbiotic relationship with anemone {Periclimenes yucatanicus} Bonaire, Caribbean (Non-ex).