Atracidae has some of Australia's medically important funnelweb spiders. Its three genera Atrax, Hadronyche and Illawarra were recently separated from the sister family Hexathelidae. The well known Sydney Funnel-web Spider Atrax robustus is considered by some authorities to be the world's most dangerous spider.
Atrax robustus Sydney O. P.-Cambridge, 1877 Funnel-web Spider
The Sydney funnel-web spider is usually found within a 100 km radius of Sydney, New South Wales, from Newcastle to Nowra and west to Lithgow, in... 
Hadronyche formidabilis
Probably the largest of the funnelwebs as the name suggests and capable of a strong bite with a high venom load. Often encountered in rainforest...
Hadronyche infensa Hostile Funnelweb
The species name means aggressive, hostile, or pugnacious, referring to the male, but both male and female are dangerous. Bites can be treated with...
Hadronyche mascordi
Named in honour of Ray Mascord who wrote excellent popular books on spiders.
Hadronyche valida True Funnelweb
The species name means true to type, authentic. It was named by Rainbow & Pulleine in 1918, recorded from Queensland and New South Wales. Like all...
Illawarra wisharti
Named in honour of the late Graham Wishart who became an expert on spiders, particularly funnelwebs and trap-doors. He became an Associate of the...
