Brown Surgeonfish and Similar Species
Acanthurus nigrofuscus
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Open the appSeveral fish can be confused with Brown Surgeonfish. Here are the key differences.
Species often confused with {name}
Whitecheek Surgeonfish
Acanthurus nigricans
Key differences: A. nigricans has a prominent white patch below the eye and a bright yellow dorsal fin, which A. nigrofuscus lacks. A. nigricans also has a more pronounced black spot at the caudal peduncle.
Eyestripe Surgeonfish
Acanthurus dussumieri
Key differences: A. dussumieri is generally larger, has a yellow stripe through the eye, and a more elongated body shape. It lacks the distinct black spots at the fin bases characteristic of A. nigrofuscus.
Yellowfin Surgeonfish
Acanthurus xanthopterus
Key differences: A. xanthopterus is a much larger species, typically with yellow pectoral fins and a more uniform greyish-brown body without the distinct black fin base spots of A. nigrofuscus.
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