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Galapagos four-eyed blenny (Dialommus fuscus) — Labrisomidae

Galapagos four-eyed blenny

Dialommus fuscus
Family: Labrisomidae

The Galapagos four-eyed blenny (Dialommus fuscus) is a saltwater fish of the family Labrisomidae that grows up to 12 cm.

Length
12 cm
Water
Saltwater
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless
Range
South America: Galapagos Is.

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Description

The Galapagos four-eyed blenny is a blenny (Labrisomidae) from the tidal zone of the Galapagos Islands in the eastern Pacific. The species grows to about 12 cm and has an elongate, brown-mottled body. Remarkably each eye is divided by a partition, so it sees sharply above and below water at once; it often clambers out of water over wet rocks to look for prey. As a bottom-dweller it snaps at small crustaceans. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Galapagos four-eyed blenny?

The Galapagos four-eyed blenny has an elongate, eel-like body, is mainly brown and shows a marbled pattern.

Where does the Galapagos four-eyed blenny live?

The Galapagos four-eyed blenny lives in the sea (marine waters) and is mostly found around stony or rocky ground. South America: Galapagos Is.

How big does the Galapagos four-eyed blenny get?

The Galapagos four-eyed blenny grows to a maximum of about 12 cm.

Is the Galapagos four-eyed blenny dangerous to humans?

No, the Galapagos four-eyed blenny 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.

More photos

Galapagos four-eyed blenny (Dialommus fuscus) — Labrisomidae — 2
iNaturalist ((c) Edgar Segovia, some rights reserved (CC BY-NC))
Galapagos four-eyed blenny (Dialommus fuscus) — Labrisomidae — 3
iNaturalist ((c) Rich Hoyer, some rights reserved (CC BY-NC-SA))
Galapagos four-eyed blenny (Dialommus fuscus) — Labrisomidae — 4
iNaturalist ((c) Ryan Chaffee, some rights reserved (CC BY-NC))
Galapagos four-eyed blenny (Dialommus fuscus) — Labrisomidae — 5
iNaturalist ((c) Ryan Chaffee, some rights reserved (CC BY-NC))

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All data

Identification

English name
Galapagos four-eyed blenny sourced
Scientific name
Dialommus fuscus
Family
Labrisomidae
Other names
Galápagos four-eyed blenny verified

Appearance

Size class
Small verified
Max length (cm)
12
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Pattern
Marbled sourced
Tail shape
Rounded

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Natural range
South America: Galapagos Is. sourced
Origin
Native

Behaviour & biology

Territorial
Yes
Reproduction
Separate sexes
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish.
Regulations source

Safety

Danger to humans
Harmless verified
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 Dialommus

More from the family Labrisomidae

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