Lepidogalaxiidae
1 species
Lepidogalaxias salamandroides is a species of small freshwater fish of Western Australia. It is the only member of the family Lepidogalaxiidae and genus Lepidogalaxias. Common names for this fish include salamanderfish and Shannon mudminnow. Although it is not a lungfish, it resembles lungfish in several respects, including its ability to survive dry seasons by burrowing into the sand. It is on the IUCN Red List as Endangered.
It has a limited distribution in acidic pools of water in heathland peat flats of southwest Australia, between the Blackwood and Kent Rivers. This range is across a distance of 180 kilometres, in an area of Northcliffe, they are common in this region. Its habitat is semi-permanent water, small pools and streams that may be high in tannins and acidity (pH 3.0–6.5). They experience a range of water temperatures, daily changes of 16 to 32 degrees Celsius, in pools no deeper than 0.1 metres. The species rests on the bottom of the water using elongated pelvic and rounded caudal fins. These small and shallow pools may contain a population of around 150 individuals, are generally no larger than 600 square metres, and evaporate in the dry seasons. It is also unusual for its ability to survive desiccation by burrowing into sand, a process of aestivation, when the pools it lives in periodically evaporate.
Lepidogalaxias salamandroides is a species of small freshwater fish of Western Australia. It is the only member of the family Lepidogalaxiidae and genus Lepidogalaxias. Common names for this fish include salamanderfish and Shannon mudminnow. Although it is not a lungfish, it resembles lungfish in several respects, including its ability to survive dry seasons by burrowing into the sand. It is on the IUCN Red List as Endangered.
It has a limited distribution in acidic pools of water in heathland peat flats of southwest Australia, between the Blackwood and Kent Rivers. This range is across a distance of 180 kilometres, in an area of Northcliffe, they are common in this region. Its habitat is semi-permanent water, small pools and streams that may be high in tannins and acidity (pH 3.0–6.5). They experience a range of water temperatures, daily changes of 16 to 32 degrees Celsius, in pools no deeper than 0.1 metres. The species rests on the bottom of the water using elongated pelvic and rounded caudal fins. These small and shallow pools may contain a population of around 150 individuals, are generally no larger than 600 square metres, and evaporate in the dry seasons. It is also unusual for its ability to survive desiccation by burrowing into sand, a process of aestivation, when the pools it lives in periodically evaporate.
