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Scythe butterflyfish (Prognathodes falcifer) — Chaetodontidae

Scythe butterflyfish

Prognathodes falcifer
LC · Least Concern

The Scythe butterflyfish (Prognathodes falcifer) is a saltwater fish of the family Chaetodontidae that grows up to 15 cm.

Length
15 cm
Water
Saltwater
Depth
10.0–150.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Eastern Pacific; deeper rocky bottoms and reefs.
Edibility
Not eaten

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Description

The scythe butterflyfish is a butterflyfish (Chaetodontidae) from the eastern Pacific. The species has a deep, white body with two yellow bands and a conspicuous black, scythe-shaped oblique band over the flank. It usually lives solitary on deeper rocky, boulder-strewn bottoms and deep reefs, often well below normal diving depth. It feeds on small zooplankton and small bottom invertebrates picked from the substrate. The species is harmless to humans.

Frequently asked questions

How do you recognise the Scythe butterflyfish?

The Scythe butterflyfish has a flattened, disc-shaped body, is mainly white and shows a vertical stripes pattern. Black, sickle-shaped oblique band across the flank; solitary coral butterflyfish of deep rocky bottoms.

Where does the Scythe butterflyfish live?

The Scythe butterflyfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Pacific; deeper rocky bottoms and reefs.

How big does the Scythe butterflyfish get?

The Scythe butterflyfish grows to a maximum of about 15 cm.

Is the Scythe butterflyfish dangerous to humans?

No, the Scythe butterflyfish is harmless to humans. None required: this species is harmless to humans.

Is the Scythe butterflyfish edible?

The Scythe butterflyfish is not usually eaten.

More photos

Scythe butterflyfish (Prognathodes falcifer) — Chaetodontidae — 2
Wikimedia Commons — Coughdrop12 (CC BY-SA 4.0)
Scythe butterflyfish (Prognathodes falcifer) — Chaetodontidae — 3
Jeremy_Jodoin (CC BY-NC 4.0) via GBIF — iNaturalist
Scythe butterflyfish (Prognathodes falcifer) — Chaetodontidae — 4
iNaturalist ((c) Joseph G Wible, some rights reserved (CC BY-NC))
Scythe butterflyfish (Prognathodes falcifer) — Chaetodontidae — 5
iNaturalist ((c) Jonathan Williams, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Scythe butterflyfish verified
Scientific name
Prognathodes falcifer
Family
Chaetodontidae
Other names
Scythemarked butterflyfish verified

Appearance

Size class
Small verified
Max length (cm)
15.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
White inferred
Pattern
Vertical bars inferred
Tail shape
Straight inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
10.0 verified
Max depth (m)
150.0 verified
Natural range
Eastern Pacific; deeper rocky bottoms and reefs. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small zooplankton and small bottom-dwelling invertebrates sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Black, sickle-shaped oblique band across the flank; solitary coral butterflyfish of deep rocky bottoms. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Prognathodes

More from the family Chaetodontidae

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