Uropygi is an arachnid order comprising invertebrates commonly known as whip scorpions or vinegaroons. They are often called uropygids. The name "whip scorpion" refers to their resemblance to true scorpions and possession of a whiplike tail, and "vinegaroon" refers to their ability when attacked to discharge an offensive, vinegar-smelling liquid, which contains acetic acid. The order may also be called Thelyphonida. Both names, Uropygi and Thelyphonida, may be used either in a narrow sense for the order of whip scorpions, or in a broad sense which includes the order Schizomida.
Palaeophonus is one of the oldest known genera of scorpions.
Philoponella is a genus of uloborid spiders. Like all Uloboridae, these species have no venom.
Carrhotus is a genus of jumping spiders that was first described by Tamerlan Thorell in 1891. The name is derived from the Greek Κάῤῥωτος.
The Buthidae are the largest family of scorpions, containing about 100 genera and 1339 species as of 2022. A few very large genera are known, but a high number of species-poor or monotypic ones also exist. New taxa are being described at a rate of several new species per year. They have a cosmopolitan distribution throughout tropical and subtropical environments worldwide. Together with four other families, the Buthidae make up the superfamily Buthoidea. The family was established by Carl Ludwig Koch in 1837.
Tityus is a large genus of thick-tailed scorpions, the namesake of its subfamily Tityinae. As of 2021, Tityus contains more than 220 described species distributed in Central America and South America, from Costa Rica to Argentina. Species in the genus Tityus have been studied for hundreds of years, long before the taxonomic classification was put in place. Tityus tend to be of medium size for scorpions, roughly 50 to 70 millimeters long. They are dark brown or red in color, and can exhibit sexual dimorphism. They can live in a variety of environments, ranging from urban to arid mountains to the Amazon Rainforest. Tityus scorpions are best known for their venom and potent sting. The genus contains several dangerously venomous scorpions, the best known of which is the Brazilian yellow scorpion, T. serrulatus. Its venom can cause severe illness, and in the young, old and infirm even death. Some experts have argued that the genus as a whole may be paraphyletic, which could explain the knowledge gaps related to Tityus.
Heterometrus, whose members are also known by the collective vernacular name Asian Forest Scorpion, is a genus of scorpions belonging to the family Scorpionidae. It is distributed widely across tropical and subtropical southeastern Asia, including Indonesia, Brunei, Malaysia, Myanmar, Philippines, Singapore, Cambodia, Laos, Thailand, Vietnam, India, and China (Hainan). It is notable for containing some of the largest living species of scorpions.
Pandinus is a genus of large scorpions belonging to the family Scorpionidae. It contains one of the most popular pet scorpions, the emperor scorpion . The genus is distributed across tropical Africa.
Olios is the largest genus of huntsman spiders, containing 166 species. They are found throughout the world, with most species occurring in hot countries. The genus was first described by Charles Athanase Walckenaer in 1837.
Isometrus is a genus of scorpion belonging and being eponymous to the family Buthidae. Some species are currently assigned to the genus Reddyanus.
Urodacus manicatus, commonly known as the black rock scorpion, is a species of scorpion belonging to the family Urodacidae. It is native to eastern Australia.
Linyphia is a genus of dwarf spiders that was first described by Pierre André Latreille in 1804. The name is Greek, and means "thread-weaver" or "linen maker".
Ananteris nairae is a scorpion species found in Brazilian Amazonia. The species has the most western distribution of the species in Ananteris. The specific epithet refers to Nair Otaviano Aguiar.
Ischnocolus is a genus of tarantulas that was first described by Anton Ausserer in 1871. This tarantula genus includes some of the smallest in the family.
Eupalaestrus is a genus of South American tarantulas that was first described by Reginald Innes Pocock in 1901.
Boliscus is a genus of Asian crab spiders first described by Tamerlan Thorell in 1891. As of February 2019 it contains only three species.
Ananteris bernabei is a species of scorpion in the family Buthidae. It was first described in a 2009 paper along with the species Ananteris chagasi and Ananteris kuryi. It is endemic to Espírito Santo, Brazil.
Ananteris chagasi is a species of scorpion in the family Buthidae. It was first described in a 2009 paper along with the species Ananteris kuryi and Ananteris bernabei. It is endemic to Minas Gerais, Brazil.
Ananteris kuryi is a species of scorpion in the family Buthidae. It was first described in a 2009 paper along with the species Ananteris chagasi and Ananteris bernabei. It is endemic to Bahia, Brazil.
