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

🌊 Marine Least Concern 🌡️ Tropical

Horned rockskipper

Antennablennius bifilum Günther, 1861
Max Length
7.5 cm
Max Weight
Lifespan
Trophic Level
Depth
18–37 m
Climate
Tropical
Resilience
High
Vulnerability
15.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Oviparous. Eggs are demersal and adhesive , and are attached to the substrate via a filamentous, adhesive pad or pedestal . Larvae are planktonic, often found in shallow, coastal waters .

Scientific Name
Antennablennius bifilum
Authority
Günther, 1861
Habitat
Marine
Climate
Tropical
IUCN Status
LC
Max Length
7.5 cm
Depth Range
18–37 m
Resilience
High
Vulnerability
15.00/100
Salinity
30–40 ppt

🔬 Taxonomy

Genus
Antennablennius
Antennablennius
Species
Horned rockskipper
Antennablennius bifilum

🐟 Physical Description

Dorsal spines (total): 7; Dorsal soft rays (total): 17 - 19; Anal spines: 2; Anal soft rays: 17 - 20. The species can be distinguished from Antennablennius persicus by the following characters: number of segmented ray in dorsal fin, 17-18 (vs. 19-20 in A. persicus), anal fins 18-19 (vs. 20); white bars restricted to the ventral half and white spots on the anterior part of body (vs. white narrow bars on the anterior unspotted part of body below spinous portion of the dorsal fin); three black bars ventrally on the head (vs. with a black bar ventrally on the head at angle of mouth .Cross section: oval.

🌀 Behaviour

Behavioural data for Horned rockskipper is currently being reviewed.

🦐 Diet

Diet information for Horned rockskipper is currently being compiled.

🥚 Reproduction

🐣 Oviparous

Oviparous, distinct pairing .

🌍 Habitat & Distribution

Marine; demersal; depth range 18 - 37 m . Tropical South Africa (Eastern Cape), Madagascar, Comoros, Aldabra and Mascarenes; not known from Red Sea.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3 (TL)
Max TL
7.5cm
Dorsal Spines
7
Dorsal Rays
18
Anal Spines
2
Anal Rays
19

🌡️ 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
15.00/100
Low vulnerability
Climate Zone
Tropical
Described By
Günther, 1861

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet — be the first to log one!

View all observations for Horned rockskipper ↗
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.