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Poll's stargazer (Uranoscopus polli) — Uranoscopidae

Poll's stargazer

Uranoscopus polli
Family: Uranoscopidae
LC · Least Concern

The Poll's stargazer (Uranoscopus polli) is a saltwater fish of the family Uranoscopidae that grows up to 35 cm.

Length
35 cm
Water
Saltwater
Depth
20.0–200.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Venomous / poisonous
Range
Eastern Atlantic along the coast of West Africa, buried in sandy and silty bottoms of the continental shelf.
Edibility
Rarely eaten

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Description

Poll's stargazer is a bizarre bottom fish of the family Uranoscopidae (stargazers) reaching about 35 cm. The steep, armoured head carries the eyes and the wide, upward-facing mouth on top - hence the name. The fish buries itself in sand and mud bottoms with only the eyes showing, and sometimes flicks a small lure from the floor of its mouth to attract prey. When a small fish or shrimp passes, it sucks it in with a lightning-fast gulp. Behind the head sit two strong venomous spines. The species lives on the continental shelf along the West African coast. Because of its venom a caught animal must be handled with care.

Frequently asked questions

How do you recognise the Poll's stargazer?

The Poll's stargazer has an elongate, eel-like body, is mainly brown and shows a spots pattern. Stargazer with a steep head, eyes and mouth on top; buries itself and has venomous shoulder spines and a small lure filament in the mouth.

Where does the Poll's stargazer live?

The Poll's stargazer lives in the sea (marine waters) and is mostly found around sand or mud bottom. Eastern Atlantic along the coast of West Africa, buried in sandy and silty bottoms of the continental shelf.

How big does the Poll's stargazer get?

The Poll's stargazer grows to a maximum of about 35 cm.

Is the Poll's stargazer dangerous to humans?

The Poll's stargazer is venomous — handle spines with care and seek medical help after a sting if needed. Behind the head, above the pectoral fins, sit two strong venomous spines that cause very painful wounds. Immerse the wound for 30-90 minutes in water as hot as can be tolerated (about 45 C) and seek medical help.

Is the Poll's stargazer edible?

The Poll's stargazer is rarely eaten.

More photos

Poll's stargazer (Uranoscopus polli) — Uranoscopidae — 2
Wieber, Kimberly (CC0 1.0) via GBIF — USNM
Poll's stargazer (Uranoscopus polli) — Uranoscopidae — 3
iNaturalist ((c) NGUECHE NGUEBOUI, some rights reserved (CC BY-NC))
Poll's stargazer (Uranoscopus polli) — Uranoscopidae — 4
iNaturalist ((c) Cedrick Fogwan, some rights reserved (CC BY-NC))
Poll's stargazer (Uranoscopus polli) — Uranoscopidae — 5
iNaturalist ((c) mt1414, some rights reserved (CC BY-NC))
Fin

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All data

Identification

English name
Poll's stargazer verified
Scientific name
Uranoscopus polli
Family
Uranoscopidae
Other names
Whitespotted stargazer sourced

Appearance

Size class
Medium verified
Max length (cm)
35.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Spots sourced
Tail shape
Straight inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy inferred
Barbels
No verified
Dorsal fins
Two separate sourced
Dorsal spines
Yes verified

Habitat & distribution

Water type
Saltwater verified
Substrate
Sand / mud bottom verified
Min depth (m)
20.0 verified
Max depth (m)
200.0 verified
Natural range
Eastern Atlantic along the coast of West Africa, buried in sandy and silty bottoms of the continental shelf. verified
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Diet (detail)
Bottom-dwelling fishes and crustaceans, caught from ambush in the sand sourced
Social behaviour
Solitary verified
Territorial
No verified
Activity
Nocturnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Lies buried almost all the time with only the eyes visible; eggs and larvae drift in open water. sourced
Special features
Stargazer with a steep head, eyes and mouth on top; buries itself and has venomous shoulder spines and a small lure filament in the mouth. sourced

For anglers

Edibility
Rarely eaten verified
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Venomous / poisonous verified
First aid
Behind the head, above the pectoral fins, sit two strong venomous spines that cause very painful wounds. Immerse the wound for 30-90 minutes in water as hot as can be tolerated (about 45 C) and seek medical help. sourced

Status & sources

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

Same genus Uranoscopus

More from the family Uranoscopidae

Fin

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