Dark brown to olive body covered in bright blue spots. Often have body bars on rear half of body. Introduced to Hawaii in 1956.
Silvery fish with blunt head and large eye. Sometimes have dark body bars, Tends to hover at mid-water.
Yellow body with white chin and chest. The snout is long and slender, and the mouth is open at the tip. Shouldn't be confused with the similar-looking Big Longnose Butterflyfish, which has a slightly longer snout.