The Giant Japanese funnel-web spider, known formally as Gigathele gigas, is a species of funnel-web spider in the family Macrothelidae. It is one of the largest funnel-web spiders in the world, and is highly venomous. The species was previously assigned to genus Macrothele, but was assigned to Gigathele in 2025.
Description Members of the species are typically black with red fangs protruding from the mouth. When fully grown, spiders in the species can grow to have a leg span of ~, making them one of the largest funnel-web spider species in the world. The spider is exclusive to the Ryukyu Islands in Japan.
Venom The spider is venomous, and typical symptoms after a bite can include unnatural amounts of perspiration, goose bumps, hypertension and tachycardia.
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