Mouse Spider
Missulena bradleyi
Family: Actinopodidae ID: Rainbow, 1914

Habitat and Biology 
  Like the trap-door spiders, the mouse spider lives in tunnels in the ground. 
  Unlike the Stanwellia trap-door spiders, mouse spiders do possess a `trap-door' 
  lid at the entrance. Males are most active during the daylight hours of the 
  early winter, when they search for a mate. A close relative, Missulena occatoria 
  Walckenaer, occurs in the drier western areas of Victoria and males of this 
  species have a distinctive red cephalothorax and black abdomen. The spiderlings 
  of the mouse spider apparently disperse on gossamer, a technique which is rare 
  in mygalomorphs. The common name derives from the erroneous belief that this 
  spider excavated a mouse-like burrow. 
Colour
  Male: Cephalothorax and legs glossy black, abdomen slightly paler with distinct 
  pale bluish patch on upperside towards the front.
  Female: Dark brown to blackish.
Form
  Recognised by the large cephalothorax, stout legs, and eye formation spread 
  across the front of the cephalothorax instead of in a compact group as in trap-door 
  spiders.
Body Length
  Male: 15mm
  Female: 25mm
Web type
  Does not build a web.
Bite
  Although some experimental 
  evidence suggests the venom of mouse spiders is relatively toxic, most recorded 
  bites have not produced serious reactions.