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🌊 Marine Least Concern 🍽️ Edible 🌡️ Subtropical

Scythemarked butterflyfish

Prognathodes falcifer Hubbs & Rechnitzer, 1958
Max Length
15 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
10–150 m
Climate
Subtropical
Resilience
High
Vulnerability
16.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Usually solitary. Found in rocky, boulder strewn areas . Close relatives are known to pinch off and eat tube feet of sea urchins and other echinoderms. Also feed on crustaceans, worms and other small invertebrates . Because they live in relatively deeper waters, they are seldom collected, thus, rarely seen in the aquarium trade . Oviparous . Form pairs during breeding .

Scientific Name
Prognathodes falcifer
Authority
Hubbs & Rechnitzer, 1958
Habitat
Marine
Climate
Subtropical
Body Shape
Short and / or deep
IUCN Status
LC
Max Length
15 cm
Depth Range
10–150 m
Trophic Level
3.3
Resilience
High
Vulnerability
16.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 12; Dorsal soft rays (total): 19 - 20; Anal spines: 3; Anal soft rays: 14 - 16. : short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Scythemarked butterflyfish is currently being reviewed.

🦐 Diet

Diet information for Scythemarked butterflyfish is currently being compiled.

🥚 Reproduction

Form pairs during breeding .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 10 - 150 m. Subtropical

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.3±0.34
🧍 Solitary
Food Items

crustaceans, worms and other small invertebrates (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.02239 × L3.01 (TL)
Max TL
15cm
Dorsal Spines
12
Dorsal Rays
20
Anal Spines
3
Anal Rays
15

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
16.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Short and / or deep
Climate Zone
Subtropical
Described By
Hubbs & Rechnitzer, 1958

🍽️ Edibility & Flavour

"Scythemarked butterflyfish is an edible species."

✗ Not for Raw
✓ Fresh Indicators
  • Clear, bright eyes — cloudy eyes indicate age
  • Firm flesh that springs back when pressed
  • Fresh ocean smell, never strong or ammonia-like
  • Bright red or pink gills, not grey or brown
  • Shiny, moist skin with scales tightly attached
✗ Avoid If
  • Cloudy or sunken eyes
  • Strong fishy or ammonia odour
  • Soft, mushy flesh that doesn't spring back
  • Discoloured or dry flesh
Best Cooking Methods
Baking Grilling Pan-frying

Nutrition

Per 100g cooked - Source: USDA FoodData Central

Nutrient Amount
Protein 19.3 g
Omega-3 (total) 213 mg

🔬 Mercury Safety

Mercury data for Scythemarked butterflyfish has not yet been assigned. Please consult FDA/EPA guidance for general seafood safety advice.

🌿 Sustainability

Best Choice
Healthy stocks, low impact
Good Alternative
Well-managed, minor concerns
Use Caution
Check sourcing and season
Avoid
Overfished or high impact

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Northern Scythe Butterflyfish · Scythemarked Butterflyfish · scythe butterflyfish
🏳️Catalan Peix papallona de nas afilat del nord
🇩🇰Danish Le-mærke fanefisk
🇩🇪German Galapagos-Pinzettfisch
🇫🇷French Papillon faucille
🇮🇹Italian Pesce farfalla falciforme
🇵🇹Portuguese Peixe-borboleta-bico-de-pinça-do-norte
🇪🇸Spanish Mariposa de Scythe · Mariposa gaudaña · Pez Mariposa Guadaña · mariposa guadaña
🇨🇳Chinese 鐮蝴蝶魚

Scientific Synonyms

Scientific Name Author Year Status
Chaetodon falcifer Hubbs & Rechnitzer 1958 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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