Home · Tripterygiidae · Rubinoff's triplefin
Rubinoff's triplefin (Axoclinus rubinoffi) — Tripterygiidae

Rubinoff's triplefin

Axoclinus rubinoffi

The Rubinoff's triplefin (Axoclinus rubinoffi) is a saltwater fish of the family Tripterygiidae that grows up to 4 cm.

Length
3.5 cm
Water
Saltwater
Depth
1.0–2.0 m
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless

Description

Rubinoff's triplefin is a triplefin (Tripterygiidae) from shallow rocky reef water of the eastern Pacific. The species grows to about 4 cm and has a slender, spindle-shaped body with the family's characteristic three separate dorsal fins and high-set eyes. As a day-active bottom-dweller it perches on rock and coral and picks small crustaceans, algae and biofilm. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Rubinoff's triplefin?

The Rubinoff's triplefin has an elongate, eel-like body, is mainly brown and shows a spots pattern.

Where does the Rubinoff's triplefin live?

The Rubinoff's triplefin lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Rubinoff's triplefin get?

The Rubinoff's triplefin grows to a maximum of about 4 cm.

Is the Rubinoff's triplefin dangerous to humans?

No, the Rubinoff's triplefin is harmless to humans.

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →

All data

Identification

Dutch name
Rubinoffs drievinslijmvis sourced
English name
Rubinoff's triplefin sourced
Scientific name
Axoclinus rubinoffi
Family
Tripterygiidae

Appearance

Size class
Small verified
Max length (cm)
3.5 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Rounded inferred
Dorsal fins
Three separate sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
1.0 verified
Max depth (m)
2.0 verified
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Diurnal sourced
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Klein van stuk en nauwelijks een hengelsportdoel; wordt vooral incidenteel of als aasvis gevangen. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Axoclinus

More from the family Tripterygiidae

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →