Fact-checked by Grok 2 weeks ago

Funnel-web spider

Funnel-web spiders are medium- to large-sized mygalomorph arachnids belonging to the Atracidae, endemic to eastern and comprising approximately 38 described across three genera: , , and . These spiders are characterized by their glossy, sparsely haired bodies ranging from dark brown to black, with body lengths of 1–5 cm, prominent finger-like spinnerets, and, in males, a on the second pair of legs used for . They are renowned for constructing funnel-shaped retreats in burrows or tree hollows, which serve as both habitats and traps for prey such as , frogs, and small vertebrates. While generally reclusive and nocturnal, funnel-web spiders can be defensively aggressive when threatened, rearing up to display their fangs and releasing , a that has contributed to their notoriety as among the world's most venomous spiders. The family Atracidae is distributed primarily along Australia's eastern seaboard, from Tasmania in the south to northern Queensland, favoring humid, sheltered habitats such as moist forests, woodlands, and rocky slopes, though some species like tree-dwelling Hadronyche adapt to arboreal environments. Species in the genus Atrax, including the iconic Sydney funnel-web spider (A. robustus), are confined to New South Wales, while Hadronyche species are more widespread and diverse, extending into subtropical regions. Recent taxonomic revisions as of 2025 have clarified that the Sydney funnel-web represents a species complex, including A. robustus, the revalidated A. montanus, and the newly described A. christenseni, highlighting morphological and genetic distinctions that may influence venom composition and antivenom efficacy. These spiders typically live 4–6 years, reaching maturity after several years, with males leaving their burrows during the summer breeding season to search for females, increasing encounters with humans in urban fringes. Funnel-web spider venom is a complex cocktail of peptides and proteins, particularly δ-hexatoxins that target voltage-gated sodium channels, causing severe neurotoxic effects such as autonomic overstimulation, , , and potentially fatal in humans—effects more pronounced in venoms due to higher concentrations. Prior to the introduction of funnel-web in 1981 by the Australian Reptile Park, 13 deaths were recorded in , all attributed to A. robustus bites, with up to 30–40 incidents annually requiring medical attention. Today, no fatalities have occurred post-antivenom, thanks to effective first-aid protocols like pressure immobilization bandaging and rapid antivenom administration, underscoring the ' medical significance despite their low aggression toward humans under normal conditions. Ongoing into venom variation across species supports efforts and potential pharmaceutical applications, as these spiders play key roles in controlling populations in their ecosystems.

Taxonomy and classification

Etymology and naming

The common name "funnel-web spider" derives from the distinctive web architecture of these arachnids, which features a horizontal sheet of for prey capture connected to a tubular retreat that resembles a funnel, providing the spider with a secure hiding place. This nomenclature specifically applies to members of the family Atracidae, distinguishing them from other spider groups with similar but less pronounced web forms. The genus Atrax was established in 1877 by British arachnologist Octavius Pickard-Cambridge, who described the type species Atrax robustus based on a female specimen from New South Wales, Australia; the specific epithet "robustus" comes from the Latin for "strong" or "sturdy," reflecting the spider's robust build. In 1897, Australian entomologist William Joseph Rainbow described the male of this species under the invalid name Euctimena tibialis, which was later synonymized with A. robustus, contributing to early taxonomic confusion. Common names evolved to include regional identifiers, such as "Sydney funnel-web spider" for A. robustus, to differentiate it from other congeners and highlight its association with the Sydney region. Australian funnel-web spiders belong to three primary genera: , which includes five recognized primarily distributed in and the Australian Capital Territory (e.g., A. robustus, A. christenseni, , A. sutherlandi, and A. yorkmainorum), the more diverse , with approximately 33 across eastern (e.g., H. formidabilis, the northern tree-dwelling funnel-web spider, and H. cerberea), and the monotypic . The genus was first described in by Ludwig Carl Christian Koch. These genera encompass both ground-dwelling and tree-dwelling within the mygalomorph .

Species and genera

The funnel-web spiders are classified within the family Atracidae. Although a 2018 phylogenomic study suggested inclusion as the subfamily Atracinae within , current recognizes Atracidae as a distinct family. As of June 2025, the family Atracidae comprises 39 described species across three genera. The group is part of the broader mygalomorph infraorder, sharing primitive traits with other basal families such as those containing trapdoor spiders (e.g., ). Atracidae comprises three genera: Atrax, Hadronyche, and Illawarra. The genus Atrax includes five recognized species: A. robustus (Sydney funnel-web spider), A. christenseni (Newcastle funnel-web spider), A. montanus (Blue Mountains funnel-web spider), A. sutherlandi (Southern Sydney funnel-web spider), and A. yorkmainorum (Canberra funnel-web spider). The genus Hadronyche, the most speciose, contains approximately 33 species distributed across eastern and southeastern Australia, with representative examples including H. cerberea (southern tree-dwelling funnel-web spider), H. formidabilis (northern tree-dwelling funnel-web spider), H. modesta (Victorian funnel-web spider), and H. versuta (Blue Mountains funnel-web spider). The monotypic genus Illawarra consists solely of I. wisharti (Illawarra funnel-web spider), endemic to coastal forests in New South Wales. Molecular phylogenetic studies have confirmed the monophyly of Atracidae, with strong support from multi-gene and phylogenomic datasets placing it as a cohesive clade. Divergence time estimates indicate that the split between Atrax and Hadronyche occurred in the Late Cretaceous around 72 million years ago, while major diversification within the family began in the Oligocene approximately 30 million years ago, aligning with geological shifts in Australian landscapes. These analyses highlight Atracidae's close evolutionary ties to other mygalomorph groups, including Actinopodidae (mouse spiders), rather than araneomorph spiders.

Physical characteristics

Morphology and size

Funnel-web spiders belong to the mygalomorph group, featuring a robust body structure with downward-projecting chelicerae that bear large, parallel fangs for subduing prey and injecting venom. These chelicerae are particularly prominent, often held in a defensive posture. The cephalothorax is covered by a shiny, sparsely haired carapace with a deeply curved fovea (groove) and no obvious patterns. They have eight small eyes arranged in two closely grouped rows at the front of the carapace, providing limited vision typical of mygalomorphs. The abdomen is smooth and rounded, terminating in four spinnerets—the lateral pair longer and more visible in genera like Atrax, facilitating silk production for burrows and webs. Body size varies among the approximately 38 species in the family Atracidae, with most being medium to large spiders. Body length typically ranges from 1 cm to 5 cm, though the largest species, such as the northern tree funnel-web (), can reach 4–5 cm. Leg spans extend up to 9.5 cm, as seen in Atrax christenseni described in 2025, allowing for agile movement in their habitats. Sexual dimorphism is pronounced, with males generally more slender and lightly built than females to facilitate wandering in search of mates. Males have a body length of 1–5 cm and proportionally longer legs, along with bulbous pedipalps modified into spoon-like structures for transfer during . Females are stockier, with a body length of 2–5 cm and a larger, more bulbous adapted for egg production and storage. Males also possess a distinctive mating spur or spines on the second pair of legs, absent in females. Coloration is predominantly glossy black to dark brown, giving the spiders a sleek appearance that aids in within and leaf litter. The and legs may exhibit subtle iridescent glints of purple or blue in some individuals, but the overall tone is uniform without bold patterns.

Web construction

Funnel-web spiders of the family Atracidae, across genera , , and , construct funnel-shaped webs characterized by a sheet of that funnels into a retreat, serving as an site for prey capture. This web architecture is built using extruded from multiple spinnerets—typically four in these mygalomorph spiders—each connected to specialized silk glands that produce different types of for lining, framing, and trip lines. The sheet is not a sticky orb but a irregular, trip-line reinforced platform that detects vibrations from passing insects, amphibians, or small vertebrates. The construction process involves the spider first excavating or selecting a moist in , under rocks, or in tree hollows, then lining it with to form a retreat tube, often 10-30 cm deep for ground species. From the entrance, the spider extends radiating trip lines across the surrounding , creating a sensory network that alerts it to disturbances; these lines are laid by the spider walking outward while spinning , forming a loose sheet over the area. The entrance itself is a tube where the spider positions itself, forelegs extended to feel vibrations, ready to rush out and seize prey entering the web. Web variations reflect habitat adaptations between genera. Ground-dwelling Atrax species, such as A. robustus, build burrows in humid with a pronounced silk-lined funnel entrance and radiating trip lines on the ground surface for terrestrial hunting. In contrast, arboreal Hadronyche species like H. formidabilis construct similar funnel retreats in tree bark crevices or rot holes, adapting the sheet and tube to vertical surfaces while maintaining trip lines to detect arboreal prey. These webs are functionally adapted for detection, enabling precise predation by signaling prey movements through the silk's tensile properties. The enclosed retreat also shields the from predators, extreme temperatures, and , preserving the moist microhabitat essential for their survival in eastern 's forests.

Habitat and distribution

Geographic range

Funnel-web spiders, belonging to the Atracidae, are entirely endemic to , with no established populations outside the continent. All approximately 38 described species are native to the eastern and southeastern regions, showing no evidence of introduction or naturalization elsewhere. The genus Atrax, comprising three species, is restricted to southeastern Australia, with Atrax robustus (the Sydney funnel-web spider) primarily distributed within a 160 km radius of Sydney, extending from the Central Coast southward to the Georges River and westward to areas like Baulkham Hills. The genus Illawarra, with one species (I. wisharti), is restricted to the Illawarra region south of Sydney in New South Wales. In contrast, the more speciose genus Hadronyche has a broader range along Australia's eastern seaboard, from southeastern Queensland through New South Wales, Victoria, and into eastern Tasmania, with some species reaching parts of South Australia. Urban development since the has facilitated the expansion of A. robustus into suburban environments around , where habitat modifications such as garden rockeries and retaining walls have potentially increased local abundances in moist, sheltered sites. For instance, Hadronyche versuta (Blue Mountains funnel-web spider) is localized to higher elevations in the Blue Mountains region west of , though it occasionally appears in adjacent disturbed areas.

Environmental preferences

Funnel-web spiders of the family Atracidae inhabit primarily humid, forested environments across eastern , favoring areas with loose, moist soil or rough tree bark that facilitate burrowing and retreat construction. These spiders are adapted to cool, sheltered microclimates within open and closed forests, woodlands, and shaded gullies, where consistent moisture supports their physiology. They largely avoid arid zones, as dry conditions lead to and reduced survival rates. Microhabitats vary by genus and species; ground-dwelling forms, such as many species, excavate silk-lined burrows beneath logs, rocks, or in soil crevices in damp leaf litter. species, including A. robustus, often select similar ground retreats but also utilize tree crevices, rot holes, and rough bark for protection in forested settings. These spiders demonstrate notable tolerance for urban environments, persisting in moist suburban gardens, rockeries, and dense shrubberies near human habitation, provided humidity levels remain adequate. Climate plays a critical role in their and activity, with funnel-web spiders thriving in subtropical to temperate zones characterized by high and moderate temperatures. They exhibit peak activity during warmer, humid summer months ( to ), when males venture out for , while retreating deeper into during dry or cooler periods. Seasonal flooding can prompt increased dispersal and burrow relocation, whereas prolonged droughts heighten vulnerability to , limiting their range to moisture-retaining ecosystems. In these habitats, funnel-web spiders coexist with diverse soil and leaf litter , including that form a key part of their diet, contributing to local community dynamics. Phoretic mites have been observed on some species, using the spiders for dispersal without apparent harm.

Behavior and life cycle

Daily activities and hunting

Funnel-web spiders exhibit a predominantly nocturnal activity cycle, retreating to their silk-lined during the day to maintain and avoid exposure to and predators. Activity peaks at night, particularly in moist conditions following , when they emerge briefly to or perform maintenance tasks such as burrow cleaning at dawn. While females typically remain stationed near their burrow entrances year-round, males increase their wandering activity during the warmer months, often covering greater distances outside the . As predators, funnel-web s employ a sit-and-wait strategy centered around their or funnel-shaped web, positioning themselves just inside the entrance with their front legs extended onto radiating trip-lines that extend outward like a detection network. When potential prey disturbs these lines, the resulting vibrations prompt the to rapidly charge out and seize the intruder with its fangs, injecting paralytic enzymes to subdue it before dragging the meal back into the for consumption. Although primarily ambush-oriented, some species, including tree-dwelling variants, may engage in limited active at night when s are flooded or drives them farther afield. Their diet consists mainly of ground-dwelling insects such as , , , , and millipedes, supplemented occasionally by small vertebrates like skinks, frogs, or that venture near the . Prey is typically captured and liquefied through enzymatic within the , allowing efficient nutrient extraction over several hours. Funnel-web spiders possess poor eyesight and rely heavily on tactile sensory adaptations for , with specialized leg hairs known as trichobothria serving as vibration detectors that sense subtle air currents and disturbances transmitted through the trip-lines. These mechanoreceptors, distributed across the legs and body, enable precise localization of prey by amplifying faint signals from the web's extension, compensating for visual limitations in their dark, humid habitats.

Reproduction and development

Funnel-web spiders exhibit in reproductive behavior, with mature males actively seeking out females during the warmer months of summer and autumn. Males produce sperm on a small web and store it in their pedipalps before departing their to locate receptive females, guided by pheromones in the female's silk triplines. Upon arrival at a female's web or , the male signals his presence by tapping or drumming on the with his legs and pedipalps, producing seismic to assess receptivity. If the female responds positively, the male enters her retreat and performs a courtship dance characterized by quivering of the legs, body vibrations, and displays of the pedipalps to maintain her quiescence. Copulation involves the male inserting his pedipalps into the female's genital opening for sperm transfer, often while holding her with specialized spurs on his second legs; this process typically lasts several seconds to minutes. Although by the female has been reported post-mating, detailed observations in controlled trials found no instances of it occurring. Following successful mating, the female constructs a spherical or pillow-shaped egg sac within her , typically in late spring or summer, containing 100 to 200 eggs. She guards the sac vigilantly, turning and cleaning it periodically to protect against parasites and environmental threats. The eggs incubate for approximately three weeks before hatching into spiderlings that resemble miniature adults. The spiderlings remain communally in the maternal for two to , fed indirectly by the female through prey captured in the web, before dispersing in late summer to construct their own burrows. In the wild, lifespans may be shorter due to predation and environmental factors. Development proceeds through multiple molts, with juveniles molting more frequently (monthly in early stages) as they grow, transitioning to annual molts in adulthood. is reached after four to five years, with males maturing slightly earlier than females; post-maturity, males typically survive only one breeding season (six to nine months), while females live 2–10 years in and can produce multiple clutches.

Venom and envenomation

Venom composition

The of funnel-web spiders, particularly species in the genera Atrax and Hadronyche, is dominated by neurotoxic s that primarily target voltage-gated s in the , delaying their inactivation and leading to prolonged neuronal excitation. Key components include the δ-hexatoxins (formerly δ-atracotoxins), such as δ-HXTX-Ar1a (also known as robustoxin), a 42-residue isolated from the of the Sydney funnel-web spider (Atrax robustus). These s feature an inhibitor cystine knot (ICK) motif, stabilized by three disulfide bonds, which confers resistance to and enhances their specificity for and mammalian sodium channel subtypes. The potency of funnel-web venom ranks among the highest for spiders, with robustoxin exhibiting an LD50 of 0.16 mg/kg via subcutaneous injection in newborn mice, underscoring its exceptional lethality when introduced parenterally. This high toxicity reflects an evolutionary for rapidly immobilizing prey, such as small mammals and frogs, through neuromuscular , while maintaining low oral toxicity due to the nature of the toxins, which are degraded in the digestive tract. Such adaptations enable efficient hunting in the spiders' terrestrial habitats, where occurs via injection rather than ingestion. Research on funnel-web venom composition began in the late , with the purification and sequencing of robustoxin achieved in 1983, marking a seminal advancement in toxinology. Subsequent proteomic and transcriptomic studies have identified over 40 distinct toxin families, revealing a complex arsenal that includes not only δ-hexatoxins but also insecticidal α-hexatoxins and linear (non-disulfide) , with the total comprising thousands of components across species. These investigations, leveraging and genomic approaches, highlight the venom's evolutionary diversification for prey capture and defense.

Bite effects and treatment

Bites from funnel-web spiders typically cause immediate local pain at the site, followed rapidly by systemic symptoms due to the neurotoxic . Within 10-15 minutes, victims often experience perioral tingling, numbness in the mouth and lips, excessive salivation, lacrimation, and diaphoresis, alongside and . As progresses over the next 30-60 minutes, autonomic overstimulation leads to , , and piloerection, while neurotoxic effects manifest as muscle fasciculations, generalized spasms, , , and potentially if untreated. Severe envenomations can result in pulmonary edema, metabolic acidosis, and cardiopulmonary arrest, with death possible within 15-60 minutes without intervention; historically, 13 fatalities occurred in Australia prior to 1981, including seven children. Bites are relatively rare, with fewer than 50 confirmed or suspected cases annually in Australia, though male spiders pose a higher risk due to their more aggressive defensive behavior and greater tendency to wander into human habitats during the mating season. Small children and individuals with comorbidities face elevated severity risks. First aid involves applying a firm pressure-immobilization over the bite site and immobilizing the affected limb to slow spread, followed by immediate transport to a medical facility. Treatment centers on administration of CSL Funnel Web Spider , a rabbit-derived IgG product effective against all , typically given intravenously at 2-4 vials (each containing 100 mg IgG) upon onset of systemic symptoms, with repeat doses as needed. Supportive measures include intravenous fluid , cardiac , analgesics for , and if occurs. Recent taxonomic revisions (as of 2025) indicate potential variations in composition within the Sydney funnel-web , which may influence efficacy, though it remains effective against all known Atracidae to date. With prompt administration, prognosis is excellent, achieving near 100% survival and complete resolution of symptoms in 97% of severe cases, with no reported long-term sequelae in survivors; no deaths have occurred since 1981.

Human interactions and conservation

Medical and antivenom history

The first recorded human death from a funnel-web spider bite occurred on February 5, 1927, when a in was bitten by a ( robustus), marking the beginning of documented fatalities from these arachnids. Between 1927 and 1981, a total of 13 deaths were attributed to funnel-web spider bites in , primarily involving the Sydney funnel-web, with most victims being children or individuals bitten by males, whose is more potent. Urban expansion in eastern during the mid-20th century increased human-spider encounters, contributing to the incidence of bites during this period, though exact numbers of non-fatal incidents remain sparsely documented. Efforts to address the threat began in the mid-20th century, with the Australian Reptile Park, established in 1958, initially focusing on production before expanding to spiders. By the 1970s, the park initiated a venom-milking program for funnel-web spiders to supply material for research, collecting spiders from the public and extracting through electrical stimulation of their fangs. This collaborative work with the Commonwealth Serum Laboratories (CSL) culminated in the development of the first funnel-web spider in 1980, using primarily from male A. robustus specimens, as their toxin profile—rich in δ-atracotoxins—proved most effective for in rabbits. The was first administered clinically in 1981, and since then, no fatalities from funnel-web bites have been recorded in . The exhibits cross-reactivity with venoms from related genera, including species (tree funnel-web spiders), neutralizing toxicity across multiple Australian funnel-web taxa due to shared δ-hexatoxin components. This broad efficacy has been confirmed in clinical reviews, where administration resolved symptoms in cases involving various funnel-web species without severe adverse reactions in most patients. Conservation efforts for funnel-web spiders center on the Australian Reptile Park's ongoing venom-milking program, which maintains a colony of over 2,000 spiders, supplemented by public donations and to ensure a steady supply; the park is the sole producer in the world. The 2025 taxonomic revision splitting the Sydney funnel-web into three species may necessitate updated conservation assessments for each. As of 2025, the park reports fluctuating public donations, leading to expanded to maintain production. Funnel-web spiders are not formally protected under national Australian legislation, but these programs indirectly aid conservation by reducing the need for wild harvesting and raising awareness of their ecological role. As of 2025, funnel-web populations in urban and fragmented habitats, particularly around , show signs of decline due to and habitat loss, though they remain present in less disturbed moist areas. Monitoring through museum records and research initiatives, such as those by the Australian Museum, continues to track distribution and abundance to mitigate potential declines.

Cultural significance and threats

The Sydney funnel-web spider (Atrax robustus) has become a potent symbol of danger in Australian culture, embodying the nation's reputation for harboring some of the world's most venomous creatures. Often portrayed as an of lethal , it features prominently in public awareness efforts and media representations that highlight Australia's unique biodiversity risks. In media, the spider has appeared in documentaries such as the 1992 Australian production Webs of Intrigue, which explored its biology and the research into its venom at scientific laboratories. It also recurs in video games, including the Ty the Tasmanian Tiger series, where oversized Sydney funnel-web spiders serve as antagonists, reinforcing their fearsome image in popular entertainment. Folklore surrounding the spider blends traditions with modern . In D'harawal stories from the region, spiders are depicted as clan leaders, such as the twins Mararan and Marareen, who represent weaving and leadership in ancestral narratives. Contemporary urban legends often exaggerate funnel-web incursions into homes, describing "plagues" or "invasions" during wet weather, fueling public anxiety about encounters in suburban areas. Funnel-web spiders face environmental threats primarily from human activities and climatic shifts. Urban expansion in has led to habitat fragmentation and loss, potentially endangering localized populations through development encroachment. While not officially endangered, recent observations indicate declining numbers in some areas, with researchers noting widespread reductions and local extinctions likely due to ongoing bushland destruction. Pesticide applications, though not directly studied for their impact on funnel-webs, may indirectly reduce prey availability by affecting insect populations in treated urban fringes. Mitigation efforts include public education campaigns by NSW Health, which since the 1980s antivenom era have promoted awareness of spider risks during summer, advising on safe outdoor activities and bite responses. The Australian Reptile Park complements these with annual donation drives to bolster antivenom production, encouraging safe capture rather than killing to support conservation. These initiatives have helped maintain overall populations without formal endangered status.

References

  1. [1]
    Australian Funnel-web Spiders
    There are 38 described species of Australian funnel-web spiders and they are currently placed in three genera: Hadronyche, Atrax and Illawarra.Sydney Funnel Web Spider · Black House Spider · Mouse Spiders
  2. [2]
    Sydney Funnel-web Spider, Atrax robustus - The Australian Museum
    Jan 13, 2025 · Sydney Funnel-webs are shiny, dark brown to black spiders with finger-like spinnerets (silk-spinning organs) at the end of their abdomen.
  3. [3]
    Unravelling the mystery of funnel-web spiders - JCU Australia
    Aug 18, 2023 · They are reactive depending on the level of risk they face, but they are not naturally aggressive, and they typically use venom as a last resort ...
  4. [4]
    systematics of the Sydney funnel-web spider (Atracidae: Atrax ...
    Jan 13, 2025 · The Sydney funnel-web spider Atrax robustus O. Pickard-Cambridge, 1877 is an iconic Australian species and considered among the most dangerously venomous ...
  5. [5]
    Variation in venom composition in the Australian funnel-web spiders ...
    Nov 28, 2020 · Spider venoms are a complex blend of peptides, proteins and small molecules (e.g. polyamines) that induce a variety of biological activities ...
  6. [6]
    Funnel-Web Spider Toxicity - StatPearls - NCBI Bookshelf - NIH
    Feb 26, 2024 · FWSs get their name from the funnel-shaped burrows they spin to trap prey. The spiders reside in cool and relatively sheltered habitats.Missing: etymology origin
  7. [7]
    Atrax robustus (Sydney funnel-web spider)
    First described in 1877 by British arachnologist Octavius Pickard-Cambridge from a specimen at the British Museum, he referred to its 'large, massive and very ...
  8. [8]
    Phylogenomic reclassification of the world's most venomous spiders ...
    Jan 26, 2018 · Here we show that the most venomous spiders in the world are phylogenetically misplaced. Australian atracine spiders (family Hexathelidae), ...
  9. [9]
    Genus Hadronyche L. Koch, 1873 - Australian Faunal Directory
    The 31 species of Hadronyche are placed into four species groups by Gray (2010): the lamingtonensis group; the adelaidensis group; the infensa group; and the ...
  10. [10]
    Spider structure - The Australian Museum
    Jaws and fangs ... In mygalomorph spiders (trapdoor and funnel-web spiders) the large jaw bases project forward in parallel with their fangs folded back side-by- ...
  11. [11]
    Funnel Web Spider - Australian Reptile Park
    Their bodies can grow up to 5 centimetres long, with leg spans ranging from 7 to 10 centimetres depending on the species. Key features include: Are glossy ...Australia's Most Dangerous... · The Role Of The Australian... · Funnel Web Breeding Program
  12. [12]
    The silk and silk production system of the funnel-web mygalomorph ...
    The silk glands are arranged in four groups each serving one of four spinnerets. Spigot morphology is uniform, consisting of a long, slender shaft of slightly ...
  13. [13]
  14. [14]
    Biomedical database - Spiders - Atrax spp. and Hadronyche spp.
    The classification of the Funnel-web spiders was restructured in the 1980s (Gray 1987). The former genus Atrax was divided into Atrax spp. (3 species ...
  15. [15]
    Atrax robustus (PIM 049) - INCHEM
    Bite causes severe local pain, in part due to mechanical injury from large powerful fangs. Some local erythema may develop. Local necrosis not recorded.<|separator|>
  16. [16]
    [PDF] FUNNEL WEB SPIDERS Atrax robustus
    Leg bands and all other forms of identification are also unsuitable for funnel web spiders. 11.10 Hygiene. Standard hygiene requirements should be practiced ...<|control11|><|separator|>
  17. [17]
    The hairy spider - The Australian Museum
    Hinged, touch-sensitive hairs on the legs help the spider to move freely about its terrain and are important in interactions ranging from mating to prey capture ...
  18. [18]
    Mating behavior of the Sydney funnel‐web spider (Atracidae: Atrax ...
    May 12, 2023 · Mating behavior of the Sydney funnel-web spider (Atracidae: Atrax ... Download PDF. back. ZSL Publications Logo · zsl.org. © 2025 Zoological
  19. [19]
    What to Know About Funnel Web Spiders
    ### Funnel Web Spider Reproduction, Mating, Egg Laying, Development, and Lifecycle
  20. [20]
    Funnel-Web Egg Sac Season Has Arrived! - Australian Reptile Park
    Aug 22, 2025 · Laid earlier than expected, the egg sacs are now being incubated by the Park's expert team. Once hatched, the spiderlings will be raised to ...
  21. [21]
    Atrax robustus | INFORMATION - Animal Diversity Web
    Sydney funnel-web spiders have large fangs and venom sacs. Males grow to 25mm long while females grow to 35 mm long. The color is a glossy blue-black and there ...
  22. [22]
    Australian funnel-web spiders evolved human-lethal δ-hexatoxins ...
    Sep 21, 2020 · Australian funnel-web spiders are infamous for causing human fatalities, which are induced by venom peptides known as δ-hexatoxins (δ-HXTXs).Missing: divergence | Show results with:divergence
  23. [23]
    The Lethal Toxin from Australian Funnel-Web Spiders Is Encoded by ...
    The envenomation syndrome caused by bites from these spiders is due to a 42-residue peptide known as δ-hexatoxin (formerly δ-atracotoxin) (Fig. 2A). This ...
  24. [24]
    Solution structure of robustoxin, the lethal neurotoxin from the funnel ...
    Dec 15, 1997 · The polypeptide neurotoxin responsible for the major symptoms of envenomation was isolated from the venom of male A. robustus in 1983 [3]. This ...
  25. [25]
    Structural venomics reveals evolution of a complex venom by ...
    We introduce a “structural venomics” approach to show that the venom of Australian funnel-web spiders evolved primarily by duplication and elaboration of a ...
  26. [26]
    Spider Venom Program - Australian Reptile Park
    Bite symptoms start early, beginning with tingling around the mouth, twitching of the tongue, profuse salivating, watery eyes, sweating and muscle spasms.
  27. [27]
    Funnel-web spider bite: MedlinePlus Medical Encyclopedia
    Jul 1, 2023 · Symptoms · Drooling · Drooping eyelids · Double vision · Swallowing difficulty · Tingling or numbness in the mouth or lips within 10 to 15 minutes.Missing: antivenom | Show results with:antivenom
  28. [28]
    Funnel-web spider bite: a systematic review of recorded clinical cases
    Apr 18, 2005 · 13 deaths (all before the introduction of antivenom in 1981), seven in children; · 16 non-fatal bites before antivenom introduction (10 with ...Missing: pre- | Show results with:pre-
  29. [29]
    Funnel-web spider bite Information | Mount Sinai - New York
    This article describes the effects of a bite from the funnel-web spider. Male funnel-web spider bites are more toxic than bites by females.Symptoms · What To Expect At The... · Outlook (prognosis)
  30. [30]
    Funnel Web Spider Antivenom - NPS MedicineWise
    Mental confusion leading to coma may occur as well as hypertension and pulmonary oedema. Local and general fasciculation of muscles is usually present. A ...
  31. [31]
    Antivenom: Funnel Web Spider | Queensland Poisons Information ...
    Symptoms include fever, rash, joint and muscle pain, headache, nausea and vomiting. Patients should be informed of the symptoms and present to their local ...
  32. [32]
    Armed with such terrible weapons - The Dictionary of Sydney
    An antivenom for redback spider bites was introduced in Australia in 1956. Between 1927 and 1981, 13 deaths from the Sydney funnel-web's bite occurred. In 1980 ...
  33. [33]
    Our History - Australian Reptile Park
    The Australian Reptile Park as it is known today first opened in 1958 at Wyoming when naturalist Eric Worrell had the idea of combining snake venom production ...
  34. [34]
    Twentieth century toxinology and antivenom development in Australia
    The funnel-web antivenom. The development of the funnel-web spider antivenom stretched over decades and involved many of the key players in 20th century ...
  35. [35]
    Cross-reactivity of Sydney funnel-web spider antivenom
    Funnel-web spider antivenom (FWS AV) reverses clinical effects of envenomation from the bite of Atrax robustus and a small number of related Hadronyche species.
  36. [36]
    Park in Australia breeding highly venomous spiders to make anti ...
    Oct 11, 2019 · A park in Australia is breeding highly venomous spiders to make anti venom for funnel-web bites. Australian Reptile Park said the spiders ...Missing: zoos | Show results with:zoos
  37. [37]
    Variation in venom composition in the Australian funnel-web spiders ...
    However, each species may have unique venom components simply due to genetic divergence over time. Without knowledge of the properties and function of each ...
  38. [38]
    Sydney's famous funnel-web spider splits into three!
    Jan 13, 2025 · The venom of male Sydney Funnel-webs can kill an adult, and thirteen deaths have been attributed to this species between 1927 and the early ...
  39. [39]
    World's deadliest spider: the funnel-web - Australian Geographic
    Feb 13, 2017 · One land-dwelling animal that has the history to back up those claims is the funnel-web spider – with venom that can kill a human in just 15 ...Missing: media | Show results with:media
  40. [40]
    Webs of Intrigue (1992)Share - Australian Screen
    The Sydney funnel-web is the deadliest spider in the world. We see one capture a passing beetle, then see scientists researching the spiders in the lab.
  41. [41]
    Ty the Tasmanian Tiger (Video Game) - TV Tropes
    TY the Tasmanian Tiger is an Aussie-made video game series by Krome Studios ... Spiders Are Scary: The games feature giant Sydney funnel-web spiders ...
  42. [42]
    [PDF] Mararan and Marareen - D'harawal dreaming stories
    Mararan and Marareen are twin leaders of the Spider clan. Mararan is large and fat, while Marareen is slender and golden, and a skilled weaver.
  43. [43]
    Warning over deadly funnel-web spider invasion after heavy rain
    Mar 24, 2021 · Residents of Greater Sydney are being warned of a 'plague' of funnel web spiders heading into homes and looking to mate.
  44. [44]
    Warning issued over deadly funnel-web spider invasion | 7NEWS
    Jan 22, 2020 · There's been such an increase in sightings across Sydney the Australian Reptile Park is calling it a “funnel-web bonanza”. Watch the full report ...
  45. [45]
    Sydney labs breeding their own funnel web spiders amid shortage
    Jan 24, 2023 · But Meney says as Sydney's human population continues to grow, habitat destruction is hitting funnel web spider populations. “That is a real ...Missing: loss | Show results with:loss
  46. [46]
    Be ready for snakes and spiders! - NSW Health
    Sep 27, 2018 · With the start of school holidays, NSW Health is reminding people to be careful of snakes and spiders while outdoors and to pack a First Aid ...Missing: education | Show results with:education
  47. [47]
    Summer safety: Funnel-web spiders - Facebook
    Jan 7, 2025 · 🕷️ The Sydney funnel-web is one of the deadliest spiders in the world. It can give a life-threatening bite if it feels scared. This summer, ...
  48. [48]
    'Learn how to safely catch funnel-webs': Sydneysiders tasked with ...
    Nov 14, 2024 · Baby spiders collected from egg sacs via Australian Reptile Park's yearly callout are vital to creating lifesaving antivenom.