Missulena Bradleyi, also known as the eastern mouse spider, is a species of spider belonging to the family Actinopodidae. The spider is endemic to the eastern coast of Australia. The common name of the mouse spider is derived from the mistaken belief that this spider excavates a deep mouse-like burrow. Females are black overall and are larger than males. The males are black with a bluish-white patch on the front of their abdomen. Mouse spiders are medium-to-large spiders that patch the front of their abdomen.