New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Least Concern 🌡️ Deep-water

Bigeye Dragonfish

Eustomias macrophthalmus Parr, 1927
Max Length
11.1 cm
Max Weight
-
Lifespan
-
Trophic Level
4.1
Depth
0–1800 m
Climate
Deep-water
Resilience
High
Vulnerability
22.00/100
Typical Length
-
Depth Zone
deep-water

📖 Overview

Overview information for Bigeye Dragonfish is currently being compiled by our editorial team.

Scientific Name
Eustomias macrophthalmus
Authority
Parr, 1927
Habitat
Marine
Climate
Deep-water
Body Shape
Elongated
IUCN Status
LC
Max Length
11.1 cm
Depth Range
0–1800 m
Trophic Level
4.1
Resilience
High
Vulnerability
22.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Kingdom
Animalia
Phylum
Chordata
Class
Teleostei
Teleostei
Order
Stomiiformes
Stomiiformes
Family
Stomiidae
Stomiidae
Genus
Eustomias
Eustomias
Species
Bigeye Dragonfish
Eustomias macrophthalmus

🐟 Physical Description

Dorsal soft rays (total): 20 - 25; Anal soft rays: 35 - 37. Body slender and elongate, color black; body depth 6.3-8.7% SL. Head length 13.3% SL. Lower jaw about equal to length of upper jaw and is not upturned at tip. Long, tapering, protrusible snout. Chin barbel long with a very long terminal bulb; 7.6-9.3% SL. Barbel with slender stem and an elongated terminal bulb with minute terminal filament. Bulb is 4.3-7% SL and 6 times longer than it is wide. Deep ventral groove absent. Pectoral fins free. Preorbital and suborbital luminous organs absent .: elongated.

🌀 Behaviour

Behavioural data for Bigeye Dragonfish is currently being reviewed.

🦐 Diet

Diet information for Bigeye Dragonfish is currently being compiled.

🥚 Reproduction

Reproduction data for Bigeye Dragonfish is currently being compiled.

🌍 Habitat & Distribution

Marine; pelagic-oceanic; depth range 0 - 1800 m . Deep-water

🌿 Ecology

Zone Preferences
🌊 Marine 🌑 Deep Water 🐟 Pelagic
Trophic Level
4.1±0.7

📐 Morphometrics

Length–Weight Relationship: W = 0.00309 × L3.12 (TL)
Max TL
11.1cm
Dorsal Rays
23
Anal Rays
36

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
4.1
Apex / Top predator
Body Shape
Elongated
Climate Zone
Deep-water
Described By
Parr, 1927

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Bigeye Dragonfish
🌍CES svítivka velkooká
🇵🇹Portuguese Peixe-dragão-olhudo

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 3 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Bigeye Dragonfish ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.