- Animals
- ›Chordates
- ›Vertebrates
- ›Ray-finned Fishes
- ›Spiny-rayed fishes
- ›Butterflyfishes, Angelfishes, and Allies
- ›Butterflyfishes
- ›bannerfishes
- ›Johnrandallia
Black-nosed Butterflyfish
Johnrandallia nigrirostris
The blacknosed butterflyfish or barberfish (Johnrandallia nigrirostris) (from the Spanish names, El Barbero or Mariposa Barbero, "the barber" or "butterfly barber"), is a species of fish in the family Chaetodontidae, the butterfly fishes. It is found in the East Pacific, specifically around the Galápagos Islands and in the Sea of Cortez, and it sometimes acts as a cleaner fish. It is the only member of the genus Johnrandallia, named after the ichthyologist John E. Randall, but in the past it was commonly placed in Chaetodon.
From the article Johnrandallia on Wikipedia (CC BY-SA), quoted section by section
Description
This species has a silvery-yellow, compressed body, and grows to 20.3 centimetres (8.0 in). It is marked with black bands along the base of its dorsal fin, and on its snout and forehead. It has a small protractile mouth with a black, burglar-like mask around its eyes. Johnrandallia nigrirostris has brush-like teeth. It is superficially similar to Prognathodes carlhubbsi and P. falcifer, which also are native to the East Pacific.
Range & habitat
Johnrandallia nigrirostris is found in the Eastern Pacific from the Gulf of California to Panama, including the Cocos Island, Malpelo Island and the Galápagos Islands. It has also been recorded in Peru.
Wikipedia: “Distribution”
What it does
Johnrandallia nigrirostris aggregates in small groups. It is highly active during the day, during which time it feeds. At night, it shelters near to the reef's surface. This species is a kind of cleaner fish. It will remain at cleaning stations where infested fishes come to have various crustaceans and other ectoparasites removed.
Wikipedia: “Behaviour”
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Johnrandallia nigrirostris in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 85124.