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

🌊 Marine 🌡️ Tropical

Eightspot dragonet

Callionymus octostigmatus Fricke, 1981
Max Length
15 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
49–148 m
Climate
Tropical
Resilience
High
Vulnerability
26.00/100
Typical Length
12 cm
Depth Zone
demersal

📖 Overview

Found on sand and mud bottoms . Feeds on crustaceans, worms, and snails . Utilized as fish meal; sometimes marketed fresh .

Scientific Name
Callionymus octostigmatus
Authority
Fricke, 1981
Habitat
Marine
Climate
Tropical
Max Length
15 cm
Depth Range
49–148 m
Trophic Level
3.3
Resilience
High
Vulnerability
26.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 4; Dorsal soft rays (total): 9; Anal spines: 0; Anal soft rays: 9. Head and body brown, dorsally with many white-edged dark spots. Ventral sides whitish. Sides with 1 or 2 rows of dark blotches. First dorsal fin in males with many irregular white-edged dark lines. Fin distally blackish in females and young males. Second dorsal fin in males with vertical blackish streaks. Anal fin with 8 basal blackish spots. Caudal, pectoral, and pelvic fins spotted with brown (Ref 42832).

🌀 Behaviour

Behavioural data for Eightspot dragonet is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous 📦 Batch Spawner
Spawning Season
spring-summer
Spawn Location
Pelagic
Fertilization
External

🌍 Habitat & Distribution

Marine; demersal; depth range 49 - 148 m . Tropical West Pacific: Andaman Sea to China, Philippines and New Guinea.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.3±0.46
Food Items

crustaceans, worms, and snails (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L2.78 (TL)
Max TL
15cm
Dorsal Spines
4
Dorsal Rays
9
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
26.00/100
Low vulnerability
Trophic Level
3.3
Predator
Climate Zone
Tropical
Described By
Fricke, 1981

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Eightspot Dragonet
🇨🇳Chinese 八斑 · 斑臀 · 狗圻 · 老鼠

Scientific Synonyms

Scientific Name Author Year Status
Repomucenus octostigmatus Fricke 1981 Synonym

🗺️ 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 Eightspot dragonet ↗
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.