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

🌊 Marine 🌡️ Tropical

Smallhead dragonet

Callionymus erythraeus Ninni, 1934
Max Length
10 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
1–10 m
Climate
Tropical
Resilience
High
Vulnerability
20.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Smallhead dragonet (Callionymus erythraeus), first described by Ninni, 1934 is a small fish in the family Callionymidae (order Callionymiformes). Adults typically reach 10.00 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 1 to 10 metres. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.

Scientific Name
Callionymus erythraeus
Authority
Ninni, 1934
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
Max Length
10 cm
Depth Range
1–10 m
Trophic Level
3.2
Resilience
High
Vulnerability
20.00/100
Salinity
30–40 ppt

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 4; Dorsal soft rays (total): 9; Anal spines: 0; Anal soft rays: 8. Caudal fin rounded.: elongated.

🌀 Behaviour

Behavioural data for Smallhead 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 1 - 10 m . Tropical Indian Ocean: Red Sea, Persian Gulf, and southern India.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00871 × L2.78 (TL)
Max TL
10cm
Dorsal Spines
4
Dorsal Rays
9
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
20.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Ninni, 1934

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 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 Smallhead 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Spotted incorrect or outdated data?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.