Hexathelidae is a family of mygalomorph spiders. It is one of a number of families and genera of spiders known as funnel-web spiders. In 2018, the family was substantially reduced in size by genera being moved to three separate families: Atracidae, Macrothelidae and Porrhothelidae. Atracidae includes the most venomous species formerly placed in Hexathelidae.
Cithaeronidae is a small family of araneomorph spiders first described by Simon in 1893 Female Cithaeron are about 5 to 7 millimetres long, males about 4 millimetres (0.16 in).
Trochanteriidae is a family of spiders first described by Ferdinand Karsch in 1879 containing about 180 species in 21 genera. Most are endemic to Australia though Doliomalus and Trochanteria are from South America and Olin and Plator are from Asia. Platyoides species exist in southern and eastern Africa, Madagascar, and the Canary Islands with one species, P. walteri, introduced to Australia.
Orsolobidae is a six-eyed spider family with about 180 described species in thirty genera. It was first described by J. A. L. Cooke in 1965, and was raised to family status from "Dysderidae" in 1985.
Anapidae is a family of rather small spiders with 231 described species in 58 genera. It includes the former family Micropholcommatidae as the subfamily Micropholcommatinae, and the former family Holarchaeidae. Most species are less than 2 millimetres (0.079 in) long.
Symphytognathidae is a family of spiders with 73 described species in eight genera. They occur in the tropics of Central and South America and the Australian region. Exceptions include Anapistula benoiti, Anapistula caecula, and Symphytognatha imbulunga, found in Africa, Anapistula ishikawai, found in Japan, and Anapistula jerai, found in Southeast Asia.
Calponia is a monotypic genus of araneomorph spiders in the family Caponiidae, containing the single species, Calponia harrisonfordi. It was first described in 1993 by Norman I. Platnick, who named the type species after the film actor Harrison Ford to thank him for narrating a documentary for the Natural History Museum in London. It has only been found in California in the United States.
Unicorn ("one horn", in Latin) is a genus of goblin spiders from South America, containing seven species that occur predominantly in high elevation, semi-desert regions of Bolivia, Chile, and Argentina. Individuals are relatively large for goblin spiders, measuring up to 3.0 mm (0.12 in) in body length. The genus name refers to a characteristic pointed projection between the eyes and jaws of males. In at least one species, broken-off tips of the male pedipalps have been found within the genitalia of females, postulated as a means of sperm competition. Unicorn possesses several traits that suggest it is a relatively "primitive" member of the Oonopidae, and is classified with other similar, soft-bodied goblin spiders in the subfamily Sulsulinae.
Caponiidae is a family of ecribellate haplogyne spiders that are unusual in a number of ways. They differ from other spiders in lacking book lungs and having the posterior median spinnerets anteriorly displaced to form a transverse row with the anterior lateral spinnerets. Most species have only two eyes, which is also unusual among spiders. A few species of Caponiidae variously have four, six or eight eyes. In some species the number of eyes will increase when the spiderling changes its skin as it grows towards adulthood.
Cubanops is a genus of Caribbean araneomorph spiders in the family Caponiidae first described by A. Sánchez-Ruiz, Norman I. Platnick & N. Dupérré in 2010. These spiders are wandering hunters, generally found at ground level, under stones, in leaf litter or in the soil, and have only been found in the West Indies.
Nops is a genus of medium-sized South American, Central American, and Caribbean spiders in the family Caponiidae, first described by Alexander Macleay in 1839. It has a great richness on the Caribbean islands, and most mainland species are located in high proportion toward the Caribbean coast. It likely has a neotropical distribution, though most species of South America are known only from the coast of Colombia and Venezuela, including the islands of Aruba, Curaçao, Bonaire and Trinidad.
Inthaeron is a monotypic genus of Asian araneomorph spiders in the family Cithaeronidae, containing the single species, Inthaeron rossi. It was first described by Norman I. Platnick in 1991, and has only been found in India. Females can be distinguished from those of its sister genus, Cithaeron, by the arrangement of cylindrical gland spigots on the posterior median spinnerets, appearing in two rows rather than in clusters. The name is derived from "India", the country it was first found in, and "Cithaeron", the name of the other genus of Cithaeronidae.
Caponina is a genus of araneomorph spiders in the family Caponiidae, first described by Eugène Simon in 1892.
Iraponia is a monotypic genus of Asian araneomorph spiders in the family Caponiidae, containing the single species, Iraponia scutata. It was first described by Y. Kranz-Baltensperger, Norman I. Platnick & N. Dupérré in 2009, and has only been found in Iran.
Laoponia is a genus of Southeast Asian araneomorph spiders in the family Caponiidae, first described by Norman I. Platnick & Peter Jäger in 2008. As of April 2019 it contains only two species.
Nopsides is a monotypic genus of North American araneomorph spiders in the family Caponiidae, containing the single species, Nopsides ceralbonus. It is one of three nopine species, in addition to Tarsonops and Orthonops, described by Ralph Vary Chamberlin from specimens collected from the Baja California region and nearby islands in 1924. They are active during the night, hiding under large stones of Mexico's deserts and xeric shrublands during the day.
Nyetnops is a genus of South American araneomorph spiders in the family Caponiidae, first described by Norman I. Platnick & A. A. Lise in 2007. As of April 2019 it contains only two species.
Taintnops is a genus of South American araneomorph spiders in the family Caponiidae, first described by Norman I. Platnick in 1994. As of April 2019 it contains only two species, both found in Chile.
Tisentnops is a genus of South American araneomorph spiders in the family Caponiidae, first described by Norman I. Platnick in 1994. As of April 2019 it contains only three species.
