
Species GuidePennant Coralfish
Pennant Coralfish
Heniochus acuminatus
Chaetodontidae family · Reef
Least Concern
Also called the Longfin Bannerfish, this elegant black-and-white reef fish has an extraordinarily elongated fourth dorsal fin that streams behind it like a pennant. A favourite of underwater photographers on Fujairah dive sites.
Species Stats
Max Length
25 cm
Max Weight
0.3 kg
Depth Range
2–75 m
Diet
Zooplankton, benthic invertebrates
Habitat
Coral reefs, rocky outcrops, lagoons
Local Name (Arabic)
أبو ريشة
Fun Facts
- 1
The long dorsal fin "pennant" can grow longer than the fish's entire body.
- 2
Often seen in pairs — they are believed to be monogamous and mate for life.
- 3
Sometimes acts as a cleaner fish, picking parasites from larger fish.
Research Papers
Found In
FujairahSharjah (Khor Fakkan)DibbaRas Al Khaimah (east coast)
Quick Info
FamilyChaetodontidae
HabitatReef
EdibilityNot Edible
CoastGulf of Oman
Dangernone
Last reviewed June 2026Sources: MOCCAE, EAD, FAO species profiles