Holacanthus passer
Identification.
Bold blue and orange coloring with a vertical white flank bar and a yellow tail.
Galápagos context.
Ranges from the Gulf of California to Peru, including Galapagos - not endemic.
Encounter context.
Functions as a cleaner fish for hammerhead sharks and manta rays at cleaning stations, directly connecting to those flagship species' own profiles. Forms monogamous, lifelong pairs.
Seasonality.
Present year-round.