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Black triplefin (Enneapterygius niger) — Tripterygiidae

Black triplefin

Enneapterygius niger
NE · Not Evaluated

The Black triplefin (Enneapterygius niger) is a saltwater fish of the family Tripterygiidae that grows up to 3 cm.

Length
3.2 cm
Water
Saltwater
Depth
0.0–15.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Indo-West Pacific
Edibility
Not eaten

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Description

The black triplefin is a very small triplefin from the Indo-West Pacific. The species grows to about 3 cm and has an elongate body with three separate dorsal fins; breeding males become almost entirely black. As a reef-dweller it often perches on coral and rock in shallow water and feeds on small benthic life and crustaceans. The fish is harmless to humans and has no commercial value. The IUCN has not evaluated the species.

Frequently asked questions

How do you recognise the Black triplefin?

The Black triplefin has an elongate, eel-like body, is mainly black and shows a spots pattern. Three separate dorsal fins; spawning male almost entirely black

Where does the Black triplefin live?

The Black triplefin lives in the sea (marine waters) and is mostly found around sand or mud bottom. Indo-West Pacific

How big does the Black triplefin get?

The Black triplefin grows to a maximum of about 3 cm.

Is the Black triplefin dangerous to humans?

No, the Black triplefin is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Black triplefin edible?

The Black triplefin is not usually eaten.

More photos

Black triplefin (Enneapterygius niger) — Tripterygiidae — 2
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Black triplefin (Enneapterygius niger) — Tripterygiidae — 3
iNaturalist ((c) Carole BERNARD, some rights reserved (CC BY-NC))
Black triplefin (Enneapterygius niger) — Tripterygiidae — 4
iNaturalist ((c) Claire Goiran, some rights reserved (CC BY-NC))
Black triplefin (Enneapterygius niger) — Tripterygiidae — 5
iNaturalist ((c) Claire Goiran, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Black triplefin verified
Scientific name
Enneapterygius niger
Family
Tripterygiidae
Other names
Black triplefin; New Caledonian black triplefin verified

Appearance

Size class
Small verified
Max length (cm)
3.2 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Black sourced
Pattern
Spots sourced
Tail shape
Rounded inferred
Mouth position
Terminal sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
Three separate sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0.0 verified
Max depth (m)
15.0 verified
Natural range
Indo-West Pacific verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small benthic life and crustaceans inferred
Social behaviour
Solitary sourced
Territorial
No sourced
Activity
Diurnal sourced
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes sourced
Seasonality
Reef-dwelling triplefin; present year-round. sourced
Special features
Three separate dorsal fins; spawning male almost entirely black sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Enneapterygius

More from the family Tripterygiidae

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