Animal Species:Firetail Gudgeon, Hypseleotris galii (Ogilby, 1898)
The Firetail Gudgeon is a small native Australian fish that occurs in freshwater coastal streams. During the breeding season the fins of males become bright red-orange.
The Firetail Gudgeon has a compressed body, two dorsal fins and a small, oblique mouth that reaches to below the front of the eye.
The colouration of the species varies with age, habitat and season. The body is generally grey to bronze with black scale margins. During the breeding season males can be almost black, with intense red-orange fins. There is often a black bar above the pectoral fins base and a faint stripe along the side of the body.
Female Firetail Gudgeons can be easily distinguished from other species of Hypseleotris by the black area around the vent. This area is usually brown in males.
Female Firetail Gudgeons grow to 4 cm in length and males grow to 5.5 cm.
The Firetail Gudgeon is endemic to Australia. It is found from southern Queensland to southern New South Wales.
The map below shows the Australian distribution of the species based on public sightings and specimens in Australian Museums. Click on the map for detailed information. Source: Atlas of Living Australia.
Distribution by collection data
The species lives in freshwater coastal streams.
Feeding and Diet
The species feeds on aquatic invertebrates.
Mating and reproduction
The species changes colours during the breeding season (see Identification).
- Allen, G.R. 1989. Freshwater Fishes of Australia. T.F.H. Publications. Pp. 240.
- Larson, H.K. & D.F. Hoese. 1996 in McDowall, R.M. (Ed) Freshwater Fishes of South-Eastern Australia. Reed Books. Pp. 247.
- Merrick, J.R. & G.E. Schmida. 1984. Australian Freshwater Fishes. Biology and Management. John R. Merrick. Pp. 409.
Mark McGrouther , Collection Manager, Ichthyology