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Longfinned triplefin (Ruanoho decemdigitatus) — Tripterygiidae

Longfinned triplefin

Ruanoho decemdigitatus

The Longfinned triplefin (Ruanoho decemdigitatus) is a saltwater fish of the family Tripterygiidae that grows up to 12 cm.

Length
12 cm
Water
Saltwater
Depth
0.0–6.0 m
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless

Description

The Longfinned triplefin is a triplefin (Tripterygiidae) from coastal waters around New Zealand. The species grows to about 13 cm and has a slender, brown to reddish-brown body with three separate dorsal fins and large pectoral fins. As a bottom-dweller it perches on rocks, reefs and in tide pools and snaps at small crustaceans and other small invertebrates. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Longfinned triplefin?

The Longfinned triplefin has an elongate, eel-like body and is mainly brown.

Where does the Longfinned triplefin live?

The Longfinned triplefin lives in the sea (marine waters) and is mostly found around sand or mud bottom.

How big does the Longfinned triplefin get?

The Longfinned triplefin grows to a maximum of about 12 cm.

Is the Longfinned triplefin dangerous to humans?

No, the Longfinned triplefin is harmless to humans.

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All data

Identification

Dutch name
Langvin-drievinslijmvis sourced
English name
Longfinned triplefin sourced
Scientific name
Ruanoho decemdigitatus
Family
Tripterygiidae
Other names
Longfinned triplefin verified

Appearance

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

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
6.0 verified
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Diurnal inferred
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 Ruanoho

More from the family Tripterygiidae

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