Anyphaenidae is a family of araneomorph spiders, sometimes called anyphaenid sac spiders. They are distinguished from the sac spiders of the family Clubionidae and other spiders by having the abdominal spiracle placed one third to one half of the way anterior to the spinnerets toward the epigastric furrow on the underside of the abdomen. In most spiders the spiracle is just anterior to the spinnerets. Like clubionids, anyphaenids have eight eyes arranged in two rows, conical anterior spinnerets and are wandering predators that build silken retreats, or sacs, usually on plant terminals, between leaves, under bark or under rocks. There are more than 600 species in over 50 genera worldwide.
Amaurobiidae is a family of three-clawed cribellate or ecribellate spiders found in crevices and hollows or under stones where they build retreats, and are often collected in pitfall traps. Unlidded burrows are sometimes quite obvious in crusty, loamy soil. They are difficult to distinguish from related spiders in other families, especially Agelenidae, Desidae and Amphinectidae. Their intra- and interfamilial relationships are contentious. According to the World Spider Catalog, 2023, the family Amaurobiidae includes 286 species in 50 genera.
Dictynidae is a family of cribellate, hackled band-producing spiders first described by Octavius Pickard-Cambridge in 1871. Most build irregular webs on or near the ground, creating a tangle of silken fibers among several branches or stems of one plant.
Coryphasia is a genus of jumping spiders that was first described by Eugène Louis Simon in 1902.
Nemesiidae, also known as funnel-web trapdoor spiders, is a family of mygalomorph spiders first described by Eugène Simon in 1889, and raised to family status in 1985. Before becoming its own family, it was considered part of "Dipluridae".
Hugo Albert Tullgren was a Swedish entomologist and arachnologist.
Macrobunus is a genus of tangled nest spiders first described by Albert Tullgren in 1901.
Calacadia is a genus of South American intertidal spiders first described by H. Exline in 1960.
Aysenia is a genus of South American anyphaenid sac spiders first described by Albert Tullgren in 1902.
Ferrieria is a genus of South American anyphaenid sac spiders containing the single species, Ferrieria echinata. It was first described by Albert Tullgren in 1901, and has only been found in Chile and Argentina.
Oxysoma is a genus of South American anyphaenid sac spiders first described by H. Nicolet in 1849.
Gnolus is a genus of South American orb-weaver spiders that was first described by Eugène Louis Simon in 1879. Originally placed with the orb-weaving spiders, it was transferred to the pirate spiders in 1993, but moved back to orb-weaver family in 2012.
Diphya is a genus of long-jawed orb-weavers that was first described by H. Nicolet in 1849. D. tanasevitchi and D. albulum were transferred from Lophomma in 2007.
Acantharachne is a genus of African orb-weaver spiders first described by Albert Tullgren in 1910.
Molinaranea is a genus of South American orb-weaver spiders first described by Cândido Firmino de Mello-Leitão in 1940.
Orsolobus is a genus of South American araneomorph spiders in the family Orsolobidae, and was first described by Eugène Louis Simon in 1893.
Notholepthyphantes is a genus of South American dwarf spiders that was first described by Alfred Frank Millidge in 1985.
Sancus is a genus of long-jawed orb-weavers that was first described by Hugo Albert Tullgren in 1910. As of November 2019 it contains two species, found in Tanzania, Kenya, and on the Azores: S. acoreensis and S. bilineatus. The name "Sancus" is currently accepted by the World Spider Catalog, but it was already in use for a genus of skippers when this genus was named.
Allende is a genus of South American long-jawed orb-weavers that was first described by F. Álvarez-Padilla in 2007.
Selkirkiella is a genus of South American comb-footed spiders that was first described by Lucien Berland in 1924. Originally placed with the Araneidae, it was transferred to the comb-footed spiders in 1972.
