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Batfish (Ogcocephalus vespertilio) — Ogcocephalidae

Batfish

Ogcocephalus vespertilio
LC · Least Concern

The Batfish (Ogcocephalus vespertilio) is a saltwater fish of the family Ogcocephalidae that grows up to 31 cm.

Length
30.5 cm
Water
Saltwater
Depth
0–70.0 m
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Flat / disc-shaped
Substrate
Stone or rock
Danger
Harmless
Range
Western Atlantic, from Suriname to the north of Argentina.
Edibility
Rarely eaten

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Description

The longnose batfish is a bizarre bottom fish of the family Ogcocephalidae from the western Atlantic around Brazil. The species has a strongly flattened, triangular body covered with bumps, a prominent snout and arm-like pectoral and pelvic fins with which it 'walks' over the bottom rather than swimming. Between the eyes it carries a small, protrusible lure to attract prey. The fish lives on sand and rock bottoms to about 70 m deep and feeds on small fishes, crustaceans and worms. In Ceará, Brazil it is traded as an aquarium fish. It is harmless to humans.

Frequently asked questions

How do you recognise the Batfish?

The Batfish has a flattened, disc-shaped body, is mainly brown and shows a marbled pattern. 'Walks' over the bottom on arm-like pectoral fins and lures prey with a protrusible fishing lure (esca). Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with care or avoid in risk areas.

Where does the Batfish live?

The Batfish lives in the sea (marine waters) and is mostly found around stony or rocky ground. Western Atlantic, from Suriname to the north of Argentina.

How big does the Batfish get?

The Batfish grows to a maximum of about 31 cm. On average the species is around 20 cm.

Is the Batfish dangerous to humans?

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

Is the Batfish edible?

The Batfish is rarely eaten.

More photos

Batfish (Ogcocephalus vespertilio) — Ogcocephalidae — 2
iNaturalist ((c) Andre Hosper, some rights reserved (CC BY))
Batfish (Ogcocephalus vespertilio) — Ogcocephalidae — 3
kmforest (CC BY-NC 4.0) via GBIF — iNaturalist
Batfish (Ogcocephalus vespertilio) — Ogcocephalidae — 4
iNaturalist ((c) João D'Andretta, some rights reserved (CC BY))
Batfish (Ogcocephalus vespertilio) — Ogcocephalidae — 5
Wikimedia Commons — Damian Blanch (CC BY-SA 4.0)
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All data

Identification

English name
Batfish verified
Scientific name
Ogcocephalus vespertilio
Family
Ogcocephalidae

Appearance

Size class
Medium verified
Max length (cm)
30.5 verified
Average length (cm)
20.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Brown inferred
Pattern
Marbled inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Max depth (m)
70.0 verified
Natural range
Western Atlantic, from Suriname to the north of Argentina. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small fishes, crustaceans and worms sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Activity
Nocturnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
'Walks' over the bottom on arm-like pectoral fins and lures prey with a protrusible fishing lure (esca). Note: in tropical areas this species can cause ciguatera poisoning when eaten; large specimens of coral reef predators can accumulate the toxin. Eat with care or avoid in risk areas. verified

For anglers

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

Status & sources

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

Same genus Ogcocephalus

More from the family Ogcocephalidae

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