''Atrax montanus'', the Southern Sydney funnel-web spider, is a species of venomous

mygalomorph The Mygalomorphae, or mygalomorphs, are an infraorder of spiders, and comprise one of three major groups of living spiders with over 3,000 species, found on all continents except Antarctica. Many members are known as trapdoor spiders due to t ...

spider native to eastern Australia, usually found near the Blue Mountains from the Central Coast south to the

Georges River The Georges River, also known as Tucoerah River, is an intermediate tide-dominated Ria, drowned valley estuary, that is located in Sydney, Australia. The Georges River is located south and south-west from the Sydney central business district, w ...

, extending as far west as

Baulkham Hills Baulkham Hills (;) is a suburb in the Hills District, New South Wales, Hills District of Greater Sydney, in the state of New South Wales, Australia. It is located within north-west of the Sydney central business district mostly within the Loca ...

near the southern end of its distribution. It is a member of a group of spiders known as

Australian funnel-web spider Atracidae is a family of mygalomorph spiders, commonly known as Australian funnel-web spiders or atracids. It has been included as a subfamily of the Hexathelidae, but is now recognised as a separate family. All members of the family are native ...

s. The species was described in 1914 but was later considered to be the same species as Atrax robustus until 2025. They have similar distributions and look extremely similar.

References

Atracidae Spiders of Australia Arthropods of New South Wales Endemic fauna of Australia Spiders described in 1914 Venomous arthropods {{Mygalomorphae-stub