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Sea rockskipper (Entomacrodus thalassinus) — Blenniidae

Sea rockskipper

Entomacrodus thalassinus
Family: Blenniidae

The Sea rockskipper (Entomacrodus thalassinus) is a saltwater fish of the family Blenniidae that grows up to 4 cm.

Length
4 cm
Water
Saltwater
Depth
0.0–5.0 m
Diet
Omnivore
Body shape
Elongated (eel-like)
Substrate
Stone or rock
Danger
Harmless

Description

The Sea rockskipper is a combtooth blenny (Blenniidae) from the surf and tidal zone of the Indo-West Pacific. The species grows to about 7 cm and has a scaleless, brown-marbled body with a blunt head, high-set eyes and cirri above the eyes. With a mouth full of comb-like teeth it rasps algae from wet rocks; at low tide it stays active in splash pools and skips over the rock. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Sea rockskipper?

The Sea rockskipper has an elongate, eel-like body, is mainly brown and shows a marbled pattern.

Where does the Sea rockskipper live?

The Sea rockskipper lives in the sea (marine waters) and is mostly found around stony or rocky ground.

How big does the Sea rockskipper get?

The Sea rockskipper grows to a maximum of about 4 cm.

Is the Sea rockskipper dangerous to humans?

No, the Sea rockskipper is harmless to humans.

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All data

Identification

Dutch name
Zee-rotsslijmvis sourced
English name
Sea rockskipper sourced
Scientific name
Entomacrodus thalassinus
Family
Blenniidae
Other names
Reef margin blenny; Sea blenny; Twinspot rockskipper; Twinspots blenny verified

Appearance

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

Habitat & distribution

Water type
Saltwater sourced
Substrate
Stone or rock sourced
Min depth (m)
0.0 verified
Max depth (m)
5.0 verified
Origin
Native inferred

Behaviour & biology

Diet
Omnivore inferred
Territorial
Yes inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Klein van stuk en nauwelijks een hengelsportdoel; wordt vooral incidenteel of als aasvis gevangen. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified

Status & sources

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

Same genus Entomacrodus

More from the family Blenniidae

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