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Finescale foureyed fish (Anableps microlepis) — Anablepidae

Finescale foureyed fish

Anableps microlepis
Family: Anablepidae
LC · Least Concern

The Finescale foureyed fish (Anableps microlepis) is a brackish-water fish of the family Anablepidae that grows up to 32 cm.

Length
32 cm
Water
Brackish
Depth
0–? m
Diet
Omnivore
Behaviour
Small groups
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Range
Northern South America
Edibility
Rarely eaten

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Description

The finescale foureyed fish is a striking surface fish from northern South America, ranging from Trinidad and Venezuela to the Amazon delta in Brazil. It grows to about 32 cm and lives in estuaries and brackish water near river mouths, often in loose groups. Its best-known feature is its bulging eyes, which through a horizontal division can see above and below the water surface at the same time. The fish swims with the upper half of its eyes above water, scanning for prey and danger. It is a livebearing species that feeds omnivorously. It is harmless to humans and is assessed as Least Concern (LC) by the IUCN.

Frequently asked questions

How do you recognise the Finescale foureyed fish?

The Finescale foureyed fish has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Horizontally divided eyes that see above and below water at the same time; surface swimmer

Where does the Finescale foureyed fish live?

The Finescale foureyed fish lives in brackish water and is mostly found around sand or mud bottom. Northern South America

How big does the Finescale foureyed fish get?

The Finescale foureyed fish grows to a maximum of about 32 cm. On average the species is around 15 cm.

Is the Finescale foureyed fish dangerous to humans?

No, the Finescale foureyed fish 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 Finescale foureyed fish edible?

The Finescale foureyed fish is rarely eaten.

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All data

Identification

English name
Finescale foureyed fish verified
Scientific name
Anableps microlepis
Family
Anablepidae
Other names
Foureye; Foureyes verified

Appearance

Size class
Medium verified
Max length (cm)
32.0 verified
Average length (cm)
15.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Superior (upward) sourced
Lips
Thin sourced
Barbels
No sourced
Dorsal fins
One continuous sourced
Dorsal spines
No sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
0 sourced
Natural range
Northern South America verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Insects, small invertebrates and algae at the surface sourced
Social behaviour
Small groups sourced
Territorial
No sourced
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes sourced
Seasonality
Ovoviviparous surface fish of estuaries; present year-round. sourced
Special features
Horizontally divided eyes that see above and below water at the same time; surface swimmer sourced

For anglers

Edibility
Rarely eaten sourced
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
Harmless sourced
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 Anableps

More from the family Anablepidae

Fin

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