
Longfin Bannerfishes
This Longfin Bannerfishes - Heniochus acuminatus are also known as Pennant Bannerfish. They are white/yellow with black bands, with second black band ending at tip of anal fin, with elongated dorsal fin filament. Often found in school, this particular dive site in Maldives, they numbers in the thousands and was quite a spectacular sight.

The pennant coralfish,, also known as the longfin bannerfish, reef bannerfish or coachman, is a species of fish belonging to the Chaetodontidae family, native from the Indo-Pacific area.
Similar species: Butterflyfishes, Angelfishes
By Albert Kang
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Uploaded Apr 8, 2017. Captured Mar 24, 2017 14:00 in Uraha, Nikagas Magu, Malé 20173, Maldives.