Three-banded Butterflyfish
Chaetodon humeralis
The Three-banded Butterflyfish is a reef-associated butterflyfish of the eastern Pacific, especially along rocky reefs and coral-rich margins. It is recognized by its bold dark bars and pale body and usually feeds on small benthic invertebrates and coral-associated prey.

Identification points
- Pale yellow to tan body with three bold dark vertical bands
- Dark band through the eye and a second broad band over the midbody/shoulder
- Classic butterflyfish profile: laterally compressed body with a small pointed snout
Habitat
Shallow rocky reefs, coral patches, and surge-exposed coastal reef slopes in the eastern Pacific, typically from the intertidal zone to moderate depths around structure.
Bait notes
Not a standard gamefish and rarely targeted; if incidentally fished for in aquaria or research collection, small marine foods such as shrimp, mysis, squid, or finely cut bait can attract it, but capture is best avoided.
Behavior
Usually seen singly or in pairs, hovering close to reef structure and picking at the substrate for small invertebrates, worms, and other reef-dwelling prey; it is not a common target for anglers.
Caution
Handle carefully to avoid stress to this reef fish; release protected or non-target individuals where regulations apply. No notable human-consumption issue is generally associated with this species, but it is not a food fish.
Fishing notes
No dedicated angling fishery; if encountered by anglers, release promptly and handle minimally with a soft wet hand or net. It is best observed while snorkeling or diving rather than pursued with tackle.