Saddled Galaxias

Galaxias tanycephalus
Saddled Galaxias - Marinewise © 2023 MarineWise

Quick Facts

Scientific name Galaxias tanycephalus
Other names Arthurs Galaxias, Golden Galaxias, Spotted Mountain Trout
Size Up to 14.5 cm (5.7 in)
Weight Under 15 grams


Habitat & AU Distribution Freshwater lakes amongst rocky areas & structure including jetties
Depth Range 0 - 2 m (6 ft)
Saddled Galaxias Distribution

Interesting Info

  • The Saddled Galaxias is a freshwater fish species that is native to Tasmania. It has a relatively small range, occurring only in a few highland lakes and streams in the Central Highlands
  • It is known for its distinctive coloration, which features a dark saddle-shaped marking on its back.
  • The Saddled Galaxias is a cold-water species, preferring water temperatures below 15°C.
  • It is a bottom-dwelling fish, often found in rocky or gravelly areas of streams and lakes. Feeding on insects, crustaceans, and other small aquatic animals.
  • There is limited information available on the breeding behaviour. However, some studies suggest that the species likely spawns in the spring or early summer, with females depositing adhesive eggs on the undersides of rocks or vegetation in shallow water.
  • The species is known to undertake seasonal migrations between lakes and streams in its range, likely in response to changing environmental conditions.
  • Their lifespan is estimated to be around 4-5 years.
Species Interaction

Minimal Species Contact

Engagement with Saddled galaxias are largely focused on conservation and protection of the species due to their threatened status.

Scientific Classification

Kingdom: Animalia

Phylum: Chordata

Class: Actinopterygii

Order: Galaxiiformes

Family: Galaxiidae

Genus: Galaxias

Species: Galaxias tanycephalus

Conservation Status

The Saddled Galaxias of Tasmania is classified as an endangered species by the International Union for Conservation of Nature (IUCN). The species is also listed as endangered under the Australian Government’s Environment Protection and Biodiversity Conservation Act 1999.

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