Australian National University scientists have discovered a possible new species of funnel-web spider dwelling near Jervis Bay.
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Biologists uncovered the unusually large specimen of the spider's tree-dwelling genus Hadronyche while canvassing Booderee National Park.
![Scientists found the 50-millimetre female inside a rotting log. Photo: Stuart Hay ANU Scientists found the 50-millimetre female inside a rotting log. Photo: Stuart Hay ANU](/images/transform/v1/crop/frm/silverstone-ct-migration/34bed92c-6021-47be-b6a0-1248bf4a9ddd/r0_0_920_518_w1200_h678_fmax.jpg)
The 50-millimetre female was burrowed inside a rotting log in a silk-lined nest up to two metres long.
Scientists estimate she is between 25 and 30 years old.
![Traditionally, spiders lived outside. But the luxuries of modern homes have meant they have become accustomed to a higher standard of living. Photo: Stuart Hay Traditionally, spiders lived outside. But the luxuries of modern homes have meant they have become accustomed to a higher standard of living. Photo: Stuart Hay](/images/transform/v1/crop/frm/silverstone-ct-migration/054279a3-6207-4fc2-a7fe-a8a7cfb39ac3/r0_0_920_518_w1200_h678_fmax.jpg)
Further genetic and morphological analysis will be needed to determine whether it is a new species, but ANU biologist Dr Thomas Wallenius was pleased with the surprise find.
"It was unexpected that we'd find such a beautiful specimen," Dr Wallenius said.
"While a lot of the fauna is quite well documented, the surveys on invertebrates [in the national park] haven't been done as intensively so we're currently working to see if the funnel-webs fit into current classifications."
While the tree-dwelling funnel-web differs morphologically to its ground-dwelling Sydney cousin, Dr Wallenius said "both are quite dangerous".
It is hoped by learning more about the biodiversity of the funnel-web populations in Jervis Bay, researchers will be able to ensure accurate identification and administration of antivenom in case of a bite.
The first funnel-web antivenom was developed in 1981 after scientist Struan Sutherland heard of the death of a seven-year-old girl who was bitten by a funnel-web near Jervis Bay.
More than three decades on, scientists still have much to learn about Australia's most notorious spider.
The discovery is part of a wider biodiversity study of the area.