Article text: Wikipedia contributors, Bathygobius fuscus (source revision). Licensed under CC BY-SA 4.0. Retrieved 2026-10-11.
Brown Goby
Bathygobius fuscus
Gobiidae · freshwater and saltwater and brackish water fish
1 minute read · Species guide

About Brown Goby
The dusky frillgoby (Bathygobius fuscus), also known as the brown frillfin, is a species of goby which is found in the Indo-Pacific region from the South Africa north to the Red Sea and east as far as Tonga, south to Australia and north to Japan. It is a mainly coastal speciesbut it has an amphidromous life cycle and it occurs in estuaries and will move into in freshwater streams. In estuarine areas it is found mainly in the creeks preferring environments with sand and rubble, soft coral and open reefs. It feeds on detritus, as well as feeding on crustaceans, fish and algae and it is a benthic spawner. The maximum total length is 12 centimetres (4.7 in).
Range
Where it lives
Share of records by state
Habitat
Water and movement
- Water
- WoRMS records this species in fresh water, brackish water and the sea.
Classification
Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Superclass
- Actinopterygii
- Class
- Teleostei
- Order
- Perciformes
- Family
- Gobiidae
- Genus
- Bathygobius
- Species
- Bathygobius fuscus
- ITIS TSN
- 171821
- WoRMS AphiaID
- 209215
- GBIF key
- 2377024
- Outside the US
- ITIS also files it in Central Pacific Territories.
Common questions about Brown Goby
What is the scientific name of Brown Goby?
Does Brown Goby live in fresh water or salt water?
Where has Brown Goby been recorded in the United States?
Closest relatives
Other Bathygobius species
Same family