Fish identification archive / Dusky Squirrelfish

Dusky Squirrelfish

Neoniphon vexillarius

Fun facts for your next surface interval

A stout spine projects from the cheek-cover corner. [source]
The third anal spine is especially long. [source]
The species was formerly placed in Sargocentron. [source]

Florida and local context

REEF's cumulative volunteer diver-survey report lists Sargocentron vexillarium at French Reef. This is a citizen-science identification, not an independently reidentified voucher or a current sighting report.

A documented past record does not establish present abundance or guarantee an encounter.

Sources: REEF volunteer diver surveys: French Reef

How to recognize this animal

A reddish-brown squirrelfish with broad silver stripes edged dark. Red spots follow the tips of the pink spiny dorsal; the inside of the pectoral base is dark.

Sources: Smithsonian STRI: species identification and natural history

Size and life stages

Smithsonian reports a maximum of 17.2 cm. The entry does not explicitly identify total, fork or standard length for this maximum. The source does not establish separate juvenile size limits.

Sources: Smithsonian STRI: species identification and natural history

Habitat and where to look

Rock and coral reefs, at 0–25 m.

Sources: Smithsonian STRI: species identification and natural history

Range and local context

The Smithsonian range account lists: Bermuda to the southern Caribbean. Local corridor evidence comes from French Reef, as documented separately in the REEF report.

Sources: Smithsonian STRI: species identification and natural history; REEF volunteer diver surveys: French Reef

What is on the menu?

The species report lists bony fishes, cephalopods, echinoderms, snails and bivalves, bottom-dwelling crustaceans. These categories do not establish local prey proportions or a preference ranking.

Sources: Smithsonian STRI: species-level ecology and reproduction data

Daily habits and behavior

The species account reproduced by WoRMS describes dusky squirrelfish sheltering in small recesses and being active at night. That habitat note is marked unreviewed; an IUCN assessment also describes the fish as nocturnal. These sources do not establish its activity at a particular Florida site or justify disturbing a refuge.

Sources: WoRMS: dusky squirrelfish habitat note (unreviewed); IUCN 2015 species assessment: nocturnal ecology

Mating and the next generation

The report lists eggs developing in open water and a free-swimming larval stage. Courtship details, maturity size and South Florida spawning dates were not established from this account.

Sources: Smithsonian STRI: species-level ecology and reproduction data

Look-alikes and identification traps

Other striped squirrelfishes require fin-pattern and pectoral-base checks. The source uses the spelling Neoniphon vexillarium for this accepted taxon.

Sources: Smithsonian STRI: species identification and natural history

Observe without disturbing

Keep fins and equipment clear of the bottom and give the animal an unobstructed retreat. Photograph without touching, chasing, feeding, uncovering or repositioning it. Never move shells, reef material or vegetation for a clearer view. An occurrence record is not collection permission.

Rules unverified

The marine-life list expressly names blackbar soldierfish Myripristis jacobus; this is Neoniphon vexillarius. That species-only entry does not establish coverage for every holocentrid. FWC separately prohibits spearing squirrelfishes.

This scoped status is not permission to collect or a guarantee of food safety.

Harvest, collection and food status

Checked 2026-11-11.

Harvest status

Rules unverified. The marine-life list expressly names blackbar soldierfish Myripristis jacobus; this is Neoniphon vexillarius. That species-only entry does not establish coverage for every holocentrid. FWC separately prohibits spearing squirrelfishes. FWC has default limits for genuinely unregulated species, but this review does not establish that classification for this species. Confirm the scientific name, jurisdiction, method and exact site with FWC/NOAA before take. Unknown does not mean prohibited.

Jurisdiction and closed areas

Vero Beach–Key Largo Atlantic corridor. Florida state waters extend 3 nautical miles offshore; adjacent South Atlantic federal waters have separate rules. Park, sanctuary, method and landing restrictions remain applicable. No trip clearance. Check the exact site before taking fish. The mapped Blue Heron Bridge dive site is closed to marine-life collection, not automatically to every form of fishing. Biscayne National Park prohibits ordinary ornamental collection; NPS describes a superintendent collecting-permit exception. Its mapped 1.74-square-mile area closes to fishing and fish possession March 1–May 31, with properly stowed continuous transit excepted. John Pennekamp allows fishing only in designated areas and has additional collection restrictions. Key Largo Management Area prohibits tropical-fish collection and spearfishing. Sanctuary Preservation Areas prohibit take; other conservation/restoration zones and marked access closures also require checking. These site rules override general species allowances.

Spearfishing

FWC expressly prohibits spearing squirrelfishes. No corridor-wide spearfishing clearance. FWC prohibits spearfishing in state-park waters, within specified distances of swimming beaches, fishing piers and fishing bridges, and in Upper Keys state waters from Long Key north to the Miami-Dade line. Key Largo Management Area has an independent federal spearfishing and equipment-possession restriction.

Food and menu status

Species-matched food-safety advice and a dated, exact-species local restaurant menu were not verified. Menu status is unverified, not evidence that restaurants never serve it. No recipes or safe-to-eat claim.

Official sources

Identification and source cautions

Maximum length is not labelled TL, FL or SL in the accessed Smithsonian entry; do not silently assign a measurement convention.
REEF cumulative sightings are citizen-science reports, not independently verified vouchers, current abundance estimates or encounter guarantees.
Listed depth spans are species-wide source envelopes, not dive plans or promised local encounter depths.
The cited account does not resolve every life stage, daily activity pattern or local breeding season. Unverified details remain unstated.
Source images are reference material; no photo reuse rights are asserted.
Current WoRMS accepted identity is Neoniphon vexillarius; Smithsonian uses Neoniphon vexillarium. This spelling/source-name difference is disclosed, not counted as a second species.

Sources and review

Reviewed 2026-11-11; biological claims and this representative illustration independently checked. Photographs on cited sites are reference material and are not reproduced here.

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