Home · Eleotridae · Giant bully
Giant bully (Gobiomorphus gobioides) — Eleotridae

Giant bully

Gobiomorphus gobioides
Family: Eleotridae

The Giant bully (Gobiomorphus gobioides) is a fish that lives in both fresh and salt water of the family Eleotridae that grows up to 17 cm.

Length
17.4 cm
Water
Euryhaline
Diet
Carnivore
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless

Description

The giant bully is the largest sleeper goby (Eleotridae) of New Zealand, from fresh and brackish water. The species grows to about 17 cm and has a stocky, brown-grey body with a broad head and a fairly large mouth. It lives in lower river reaches and estuaries; the larvae migrate to sea and return as juveniles. As a bottom-oriented predator it seizes small crustaceans, insects and small fish. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Giant bully?

The Giant bully has a torpedo-shaped body and is mainly brown.

Where does the Giant bully live?

The Giant bully lives in both fresh and salt water and is mostly found around sand or mud bottom.

How big does the Giant bully get?

The Giant bully grows to a maximum of about 17 cm.

Is the Giant bully dangerous to humans?

No, the Giant bully is harmless to humans.

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →

All data

Identification

Dutch name
Reuzen-grondelslaper sourced
English name
Giant bully sourced
Scientific name
Gobiomorphus gobioides
Family
Eleotridae

Appearance

Size class
Medium verified
Max length (cm)
17.4 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown sourced
Tail shape
Rounded inferred

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Sand / mud bottom sourced
Origin
Native inferred

Behaviour & biology

Diet
Carnivore inferred
Territorial
No inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred

For anglers

Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. 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 Gobiomorphus

More from the family Eleotridae

Download Fin's Fish Guide

Identify fish in seconds, log your catches and dives. Join the TestFlight beta.

Get the beta →