Newcastle Funnel-web Spider

Atrax christenseni is considered a very large species of funnel-web spider, with adult males exhibiting notable size. The largest recorded male individual measured approximately 9.2 cm (3.6 in) across, including the span of the legs, making it one of the largest members of the genus Atrax. This considerable size, combined with its potent venom, has contributed to the species’ reputation for being among the most venomous and dangerous spiders in the world. Despite the species’ high venom potency, no fatalities have been documented, largely due to the availability of an effective antivenom. The antivenom developed for the closely related Sydney funnel-web spider (A. robustus) has been shown to be effective in treating bites from A. christenseni as well. This cross-efficacy is attributed to the biochemical similarity of the venom components among species within the Atrax genus, enabling broader protection through the same medical intervention.

Atrax christenseni occurs in the area north of Newcastle, New South Wales, Australia, where it inhabits silk-lined burrows. The exact location of the spider populations are not published, due to conservation concerns and its venom.

== References ==