Mouse spiders may be confused with funnel webs, as both are glossy black. The difference is that mouse spiders have a stockier body, a broader head, and larger jaws than funnel webs. They are also smaller than funnel webs, with a body size around 10mm-35mm.
Male Eastern Mouse Spiders are easy to identify, with attractive orange or red markings. There is also a bluish patch on the abdomen. Female mouse spiders are dark brown to black.