This spider gets its name from an old belief that it digs burrows like those done by mice and it is common in Australia. A female will produce as much as sixty eggs in a sac, and the spiderlings hatch in the summer but will remain in the burrows till autumn.

It has a toxic bite and characteristically exhibits aggressive behavior although a bite can be effectively treated by using funnel-web anti venom. However most of its bites are dry bites where no venom is released. The female spider is normally black in color while the male colors are different depending on the species. They mainly feed on insects and other small animals and have poor eye sight mostly relying on vibration, to catch their prey as it passes by their burrow.

Mouse spiders live in burrows that have trap doors with the female staying in the burrow while the male typically moves around looking for mates. These spiders have long legs that are large and stocky. However they have long palps that can be mistaken for legs which they use for feeding, sensation and locomotion.

Their carapace is shiny, and their head sits high with a steep slope which is a structural feature used to identify them. Mouse spiders have eight small eyes spread across the front section of their head area. They have long fangs that are large as compared to other spiders their size or even larger. The mouse spider typically grows to be 2cms long.