Species: Heniochus monoceros, Masked Bannerfish, Masked Coachman
knobs: 1 over each eye, 1 on nape
1st body bar origin behind D filament
2nd body bar origin under soft D

Heniochus monoceros Cuvier, 1831
Masked Bannerfish, Masked Coachman
Body round, strongly compressed; snout projecting in a moderate sized tube, 31-36% head length; adults with a small pointed knob over each eye and a short, pointed bony knob on nape projecting forwards above eye; dorsal fin XII, 24-27, with long filament based on 4th spine, rays longer than posterior spines; anal fin III, 18-19; pectorals 16-17; tail fin truncate; lateral line complete, ends at base of tail fin, 55-61 scales.
Body with white front, yellow-white rear, an indistinct oblique dark bar at rear; face black, a thin white bar between eyes, upper forehead yellow-brown; dark bar on front of body through pectoral and pelvic fins, extends onto dorsal fin behind 4th spine fin-banner; body with rear dark bar relatively indistinct; dorsal fin with white banner, remainder of fin yellow; tail fin yellow; anal fin white at front, yellow behind; pelvics black.
Reaches 25 cm.
Lives on coral reefs, lagoons and seaward reefs.
Depth range 2-45m, usually below 15 m
Indo-central Pacific: introduced to SE Florida

High Resolution Map Download
- Salinity
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- Marine
- Marine Only
- Inshore/Offshore
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- Inshore
- Inshore Only
- Water Column Position
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- Bottom
- Bottom only
- Habitat
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- Reef only
- Soft bottom (mud/sand/gravel/beach/estuary/mangrove/seagrass)
- Corals
- Reef (rock/coral/oyster)
- Reef associated (reef + edges-water column & soft bottom)
- FishBase Habitat
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- Reef Associated
- Feeding Group
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- Carnivore
- Data
- Diet
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- Data
- Mobile benthic crustacea (shrimps/crabs)
- Mobile benthic gastropods/bivalves
- Mobile benthic worms
- Egg Type
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- Data
- Pelagic
- Pelagic larva
- Global Endemism
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- All species
- Exotic (Introduced)
- Greater Caribbean non-endemic
- Regional Endemism
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- Exotic (Introduced)
- GC non-endemic
- All species
- Residency
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- Vagrant
- Climate Zone
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- Subtropical (23-35N, Florida / Carolinas / Bermuda)
- IUCN Red List
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- Least concern
- Listed
- CITES
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- Not listed
- Length Max
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- 25
- Depth Range Min
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- 2
- Depth Range Max
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- 45