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Blackfin squirrelfish (Neoniphon opercularis) — Holocentridae

Blackfin squirrelfish

Neoniphon opercularis
Family: Holocentridae

The Blackfin squirrelfish (Neoniphon opercularis) is a saltwater fish of the family Holocentridae that grows up to 35 cm.

Length
35 cm
Water
Saltwater
Depth
0.0–30.0 m
Activity
Nocturnal
Body shape
Torpedo-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Oceania: American Samoa, Australia, China, Taiwan/Ch Taipei, Cocos Is. (Keel), Mayotte and others
Edibility
Commonly eaten

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Description

The blackfin squirrelfish is a nocturnal reef fish (Holocentridae) from the Indo-Pacific. The species grows to about 35 cm and has a slender, red body with silvery longitudinal stripes, large eyes and a strikingly black first dorsal fin. By day it shelters in caves and crevices of coral reefs; at night it hunts small crustaceans, worms and small fish. The sharp gill-cover spine can cause a cut; otherwise the fish is harmless to humans.

Frequently asked questions

How do you recognise the Blackfin squirrelfish?

The Blackfin squirrelfish has a torpedo-shaped body, is mainly red-orange and shows a horizontal stripes pattern.

Where does the Blackfin squirrelfish live?

The Blackfin squirrelfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Oceania: American Samoa, Australia, China, Taiwan/Ch Taipei, Cocos Is. (Keel), Mayotte and others

How big does the Blackfin squirrelfish get?

The Blackfin squirrelfish grows to a maximum of about 35 cm. On average the species is around 23 cm.

Is the Blackfin squirrelfish dangerous to humans?

No, the Blackfin squirrelfish 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 Blackfin squirrelfish edible?

Yes, the Blackfin squirrelfish is commonly eaten.

More photos

Blackfin squirrelfish (Neoniphon opercularis) — Holocentridae — 2
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Blackfin squirrelfish (Neoniphon opercularis) — Holocentridae — 3
Williams, Jeffrey T. (CC0 1.0) via GBIF — USNM
Blackfin squirrelfish (Neoniphon opercularis) — Holocentridae — 4
iNaturalist ((c) Mark Rosenstein, some rights reserved (CC BY-NC))
Blackfin squirrelfish (Neoniphon opercularis) — Holocentridae — 5
Wikimedia Commons — Julien Bidet (CC BY-SA 4.0)
Fin

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All data

Identification

English name
Blackfin squirrelfish sourced
Scientific name
Neoniphon opercularis
Family
Holocentridae
Other names
Blackfin squirrelfish; Black-finned squirrelfish; Clearfin squirrelfish; Mouthfin squirrelfish; Mouth-fin squirrelfish verified

Appearance

Size class
Medium verified
Max length (cm)
35.0 verified
Average length (cm)
23.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Red / orange sourced
Pattern
Horizontal stripes sourced
Tail shape
Forked inferred

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
30.0 verified
Natural range
Oceania: American Samoa, Australia, China, Taiwan/Ch Taipei, Cocos Is. (Keel), Mayotte and others sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Nocturnal sourced
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Edibility
Commonly eaten inferred
Fishing method
Fishing with natural bait (fish, shrimp, worm) or lures close to reef and rock structures. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
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 Neoniphon

More from the family Holocentridae

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