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Atypoidea is a clade of mygalomorph spiders, one of the two main groups into which the mygalomorphs are divided (the other being Avicularioidea). It has been treated at the rank of superfamily. It contains five families of spiders: [1] [2] [3] Atypidae Thorell, 1870 Antrodiaetidae Gertsch, 1940 Mecicobothriidae Holmberg, 1882
The family Dipluridae, known as curtain-web spiders (or confusingly as funnel-web tarantulas, a name shared with other distantly related families [2]) are a group of spiders in the infraorder Mygalomorphae, that have two pairs of booklungs, and chelicerae (fangs) that move up and down in a stabbing motion.
Migidae, also known as tree trapdoor spiders, is a family of spiders with about 100 species in eleven genera. They are small to large spiders with little to no hair and build burrows with a trapdoor. [1] Some species live in tree fern stems.
The tapetum is a reflective layer at the back of the eye, thought to increase sensitivity in low light levels. Lycosoids were then defined by having a "grate-shaped" tapetum. Research from the late 1990s onwards suggests that this feature has evolved more than once, possibly as many as five times, [1] so that the original Lycosoidea is ...
Idiopidae, also known as armored or spiny trapdoor spiders, [1] is a family of mygalomorph [2] spiders first described by Eugène Simon in 1889. [3] Behaviour.
Anamidae is a family of Australian mygalomorph spiders. It was first described as a tribe by Simon in 1889, then raised to the subfamily Anaminae of the family Nemesiidae, before being raised to a family level by Opatova et al. in 2020. [1] [2]
Anapidae is a family of rather small spiders with 233 described extant species in 59 genera. [1] It includes the former family Micropholcommatidae as the subfamily Micropholcommatinae, [2] and the former family Holarchaeidae. Most species are less than 2 millimetres (0.079 in) long. [3] They generally live in leaf litter and moss on the floor ...
Most of the species within this group have six eyes, as opposed to most other spiders. Spiders in the genus Tetrablemma (Tetrablemmidae) have only four eyes, as do some members of the family Caponiidae; caponiids may even have only two eyes. However, spiders in the family Plectreuridae have the normal eight eyes. [1]