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Diamond lizardfish (Synodus synodus) — Synodontidae

Diamond lizardfish

Synodus synodus
Family: Synodontidae
LC · Least Concern

The Diamond lizardfish (Synodus synodus) is a saltwater fish of the family Synodontidae that grows up to 43 cm.

Length
43 cm
Water
Saltwater
Depth
0.0–144.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Range
Eastern Atlantic (Madeira, Canary Islands, St. Helena to São Tomé) and western Atlantic (Florida to Uruguay), including the Caribbean and the Mediterranean Sea.
Edibility
Rarely eaten

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Description

The diamond lizardfish is an elongate bottom-dwelling fish of the family Synodontidae reaching about 43 cm. It has a lizard-like head with large eyes and a wide mouth full of fine needle teeth. The brown body shows four conspicuous reddish bars across the back. It is an ambush predator that rests on rocks and hard substrate and strikes suddenly at passing fish. The diamond lizardfish lives in shallow reef waters of the eastern and western Atlantic, the Caribbean and the Mediterranean, usually between 2 and 35 m. The species is rarely eaten and has only limited commercial value.

Frequently asked questions

How do you recognise the Diamond lizardfish?

The Diamond lizardfish has an elongate, eel-like body, is mainly brown and shows a vertical stripes pattern. Elongate bottom fish with a lizard-like head and a large mouth full of needle teeth; rests on hard bottoms and attacks prey from ambush.

Where does the Diamond lizardfish live?

The Diamond lizardfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Eastern Atlantic (Madeira, Canary Islands, St. Helena to São Tomé) and western Atlantic (Florida to Uruguay), including the Caribbean and the Mediterranean Sea.

How big does the Diamond lizardfish get?

The Diamond lizardfish grows to a maximum of about 43 cm. On average the species is around 20 cm.

Is the Diamond lizardfish dangerous to humans?

No, the Diamond lizardfish is harmless to humans. None required: this species is harmless to humans.

Is the Diamond lizardfish edible?

The Diamond lizardfish is rarely eaten.

More photos

Diamond lizardfish (Synodus synodus) — Synodontidae — 2
Wikimedia Commons — JT Williams (Public domain)
Diamond lizardfish (Synodus synodus) — Synodontidae — 3
Wikimedia Commons — LASZLO ILYES (laszlo-photo) from Cleveland, Ohio, USA (CC BY 2.0)
Diamond lizardfish (Synodus synodus) — Synodontidae — 4
Wikimedia Commons — Philippe Guillaume (CC BY 2.0)
Diamond lizardfish (Synodus synodus) — Synodontidae — 5
Wikimedia Commons — Diego Delso (CC BY-SA 4.0)
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All data

Identification

English name
Diamond lizardfish verified
Scientific name
Synodus synodus
Family
Synodontidae
Other names
Lizard fish; Lizardfish; Redbarred lizardfish; Red lizardfish; Rockspear verified

Appearance

Size class
Large verified
Max length (cm)
43.0 verified
Average length (cm)
20.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Vertical bars sourced
Tail shape
Forked sourced
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
144.0 verified
Natural range
Eastern Atlantic (Madeira, Canary Islands, St. Helena to São Tomé) and western Atlantic (Florida to Uruguay), including the Caribbean and the Mediterranean Sea. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Small fishes, crustaceans and invertebrates inferred
Social behaviour
Solitary verified
Territorial
No verified
Activity
Diurnal sourced
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Reef-associated ambush predator that rests on hard substrate; little seasonal pattern known. sourced
Special features
Elongate bottom fish with a lizard-like head and a large mouth full of needle teeth; rests on hard bottoms and attacks prey from ambush. sourced

For anglers

Edibility
Rarely eaten verified
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 sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Synodus

More from the family Synodontidae

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