Oonopidae, also known as goblin spiders, is a family of spiders consisting of over 1,600 described species in about 113 genera worldwide, with total species diversity estimated at 2000 to 2500 species. The type genus of the family is OonopsKeyserling, 1835.
Linyphiidae, spiders commonly known as sheet weavers, or money spiders is a family of very small spiders comprising 4706 described species in 620 genera worldwide. This makes Linyphiidae the second largest family of spiders after the Salticidae. The family is poorly understood due to their small body size and wide distribution; new genera and species are still being discovered throughout the world. The newest such genus is Himalafurca from Nepal, formally described in April 2021 by Tanasevitch. Since it is so difficult to identify such tiny spiders, there are regular changes in taxonomy as species are combined or divided.
Opopaea is a genus of goblin spiders of the family Oonopidae. The genus is one of the largest within the family, with 180 accepted species.
Orchestina is a spider genus in the family Oonopidae. There are 71 accepted extant species in the genus.
Zoma is a genus of ray spiders that was first described by Michael I. Saaristo in 1996. As of June 2020 it contains three species, found in Japan, China, and on the Seychelles: Z. dibaiyin, Z. fascia, and Z. zoma.
Carpathonesticus is a genus of spiders in the family Nesticidae. It was first described in 1980 by Lehtinen & Saaristo. As of December 2019, it contains 21 species.
Khamisia is a genus of spiders in the family Oonopidae. It was first described in 2006 by Saaristo & van Harten. As of 2016, it contains 4 species.
Lionneta is a genus of spiders in the family Oonopidae. It was first described in 1979 by Benoit. As of 2017, it contains 8 species, all of them from the Seychelles.
Megaoonops is a genus of goblin spiders first described by Michael Saaristo in 2007. As of February 2019, it contains only one species, Megaoonops avrona.
Patri david is a species of spiders in the family Oonopidae found in the Seychelles. It was first described in 2001 by Saaristo. As of 2017, it was the only species in the monotypic genus Patri.
Semibulbus is a genus of spiders in the family Oonopidae. It was first described in 2007 by Saaristo. As of 2017, it contains only one species, Semibulbus zekharya.
Silhouettella is a genus of spiders in the family Oonopidae. It was first described in 1979 by Benoit. As of 2017, it contains 8 species.
Agyphantes is a genus of Asian dwarf spiders that was first described by Michael I. Saaristo & Y. M. Marusik in 2004. As of May 2019 it contains only two species: A. sajanensis and A. sakhalinensis.
Eskovia is a genus of dwarf spiders that was first described by Y. M. Marusik & Michael I. Saaristo in 1999. As of May 2019 it contains only two species: E. exarmata and E. mongolica.
Oreoneta is a genus of dwarf spiders that was first described by C. Chyzer & Władysław Kulczyński in 1894.
Tanasevitchia is a genus of Asian sheet weavers that was first described by Y. M. Marusik & Michael I. Saaristo in 1999. As of May 2019 it contains only two species, both found in Russia: T. strandi and T. uralensis.
Sesato is a monotypic genus of African comb-footed spiders containing the single species, Sesato setosa. It was first described by Michael I. Saaristo in 2006, and is found on the Seychelles.
Michael I. Saaristo was a Finnish arachnologist, with a particular interest in the spiders of the Seychelles. The World Spider Catalog lists 61 genus names or synonyms and 109 species names or synonyms of which he is the sole or co-author.
Prida sechellensis is a species of spiders in the family Oonopidae. It was first described in 2001 by Saaristo. As of 2017, it is the sole species in the genus Prida. It is found in the Seychelles.
Lidia is a genus of Asian dwarf spiders that was first described by Michael I. Saaristo & Y. M. Marusik in 2004. As of May 2019 it contains only two species, both found in Kazakhstan and Kyrgyzstan: L. molesta and L. tarabaevi.
