Mygalomorphs are a group of spiders that belong to the infraorder Mygalomorphae. They are characterized by their large size, robust bodies, and downward-facing fangs. Common examples include tarantulas and trapdoor spiders. Mygalomorphs are primarily found in tropical and subtropical regions, where they inhabit burrows or tunnels. Unlike other spiders, mygalomorphs have a more primitive body structure and tend to be less agile. They are typically nocturnal hunters, relying on their keen sense of touch to detect prey. Their silk is used mainly for creating burrows rather than webs, distinguishing them from other spider families like Araneomorphae.