Trapdoor-spiders
Guides
Mygalomorphae
Mygalomorphs, Orthognatha
Mygalomorphae is one of three major lineages of living spiders, comprising over 3,000 species across 32 families. Members include tarantulas, trapdoor spiders, and Australian funnel-web spiders. They are characterized by downward-pointing chelicerae, two pairs of book lungs, and often large body sizes with exceptional longevity—some individuals live 25 years or more. The group exhibits remarkable morphological conservatism across its global distribution.