Extending from behind the pectoral fins to the caudal peduncle is a diffuse band of gold spots generally below the lateral line and most prominent on the rear end of the fish.

Believed to have historically been present throughout the upper Dargo River catchment prior to the introduction of brown trout.

[3] The stream the Dargo galaxias has been recorded from is a clear, cool alpine creek surrounded by a grassy plain.

[3] Confined to freshwater for its entire lifecycle, Galaxias mungadhan is the only native fish recorded within its current range.

Collection of juvenile fish, presumed young of the year, of various lengths at different times suggest an extended spawning season from late winter to spring.

The intention was to return the fish to the stream once the water is again clear and riparian vegetation has recovered, probably after about four months.