The common planigale (Planigale maculata), also known as the pygmy planigale or coastal planigale, is one of the small carnivorous marsupials known as "marsupial mice" found in Australia. There they fill a similar niche to the insectivores of other parts of the world.
The common planigale was first described by John Gould in 1851, using a specimen forwarded to England by the collector Frederick Strange. It was originally described as Antechinus maculatus, and it was retained in the genus Antechinus until Mike Archer transferred it to Planigale in his 1976 revision of the latter genus. The species' scientific name means "spotted flat-weasel".
Two subspecies are recognised:
Behaviour
The common planigale makes its living on the ground where thick cover is present to protect it from predators. Its flattened skull allows it to slip through narrow crevasses, holes, and stands of grass to escape quickly or hunt for its prey. Community nests are often built. In captivity, females make small, saucer-shaped nests out of bark and grass; it is assumed that they do the same in the wild. The species is primarily nocturnal, though in the winter it will come out to forage for food in the daylight if conditions are favourable. Due to its small size, the common planigale tends to prefer smaller insects, typically those that are less than in length. However, it is capable of taking larger prey, such as large beetles and especially grasshoppers. To kill an insect, it bites the prey's underside, where the exoskeleton is softer. and on Great Keppel Island where its survival is threatened by proposed development. It occupies a wider range of habitat than other planigales, living in sclerophyll forest, rainforest, marshlands, grasslands and even the outer suburbs of Brisbane where it is occasionally trapped mistakenly as a house mouse. Throughout these habitats, it prefers areas with thick cover near water.
Conservation status
The exact population of the common planigale is not known, but the species is not believed to be threatened and is not listed as such.