Galaxias, commonly known as galaxiids, are a family of fish found primarily in freshwater environments. They are native to the southern hemisphere, particularly in regions like Australia, New Zealand, and parts of South America. These fish are known for their elongated bodies and are often referred to as whitebait when they are young and small. Galaxias species are important for both ecological balance and local fisheries. They typically inhabit rivers, lakes, and coastal waters, where they play a role in the food web. Some species are migratory, traveling between freshwater and saltwater environments during their life cycle.