Tord Tamerlan Teodor Thorell was a Swedish arachnologist.
Dwarf tarantulas, also known as sheet funnel-web spiders are a type of spider from the family Mecicobothriidae. Dwarf tarantulas are one of several families of the suborder Mygalomorphae; this larger group also includes the true tarantulas.
Louis Antoine Marie Joseph Dollo was a Belgian palaeontologist, known for his work on dinosaurs. He also posited that evolution is not reversible, known as Dollo's law. Together with the Austrian Othenio Abel, Dollo established the principles of paleobiology.
Atypoidea is a clade of mygalomorph spiders, one of the two main groups into which the mygalomorphs are divided. It has been treated at the rank of superfamily. It contains five families of spiders:
Eduardo Ladislao Holmberg was an Argentine natural historian and novelist, one of the leading figures in Argentine biology. Together with Florentino Ameghino he undertook the inventory of Argentine flora and fauna, and explored all the ecoregions in the country, summarizing for the first time the biodiversity of its territory. The son of botanical aficionado Eduardo Wenceslao Holmberg and grandson of the Baron Holmberg, Holmburg accompanied Argentine Libertador Manuel Belgrano on his campaigns and introduced the cultivation of the camellia to Argentina. As director of the Buenos Aires Zoological Garden he greatly developed its scientific aspect, publishing booklets and providing printed media for a learned appreciation of its contents. He also directed the Natural History Cabinet of the University of Buenos Aires and published the standard reference works on botany and zoology used in his country for most of the 20th century.
Rhode is a genus of woodlouse hunting spiders that was first described by Eugène Simon in 1882.
Hypochilus thorelli is a species of spider in the family Hypochilidae. Unlike almost all other araneomorph or "true" spiders, members of the family have four book lungs. They are often called "lampshade spiders" because of the shape of their webs which are usually built underneath ledges or projections. H. thorelli is found in the southern Appalachian Mountains of the eastern United States.
Hexura is a genus of American folding trapdoor spiders that was first described by Eugène Louis Simon in 1884. As of September 2019 it contains two species, found in the United States: H. picea and H. rothi. Originally placed with Mecicobothriidae, it was moved to Antrodiaetidae in 2019.
Hypochilus is a genus of North American lampshade spiders that was first described by George Marx in 1888.
Mastophora, also known as bolas spiders, is a genus of orb-weaver spiders first described by E. L. Holmberg in 1876. They can be identified by a pair of lumps on the dorsal surface of the opisthosoma, though not all males will have these lumps.
Stenoterommata is a genus of South American araneomorph spiders in the family Pycnothelidae. It was first described by E. L. Holmberg in 1881. Originally placed with the Ctenizidae, it was transferred to the funnel-web trapdoor spiders in 1985, then to the Pycnothelidae in 2020. It is a senior synonym of Ctenochelus.
Axyracrus is a genus of South American anyphaenid sac spiders containing the single species, Axyracrus elegans. It was first described by Eugène Simon in 1884, and has only been found in Chile and Argentina. It is a senior synonym of "Schiapellia"
Cybaeolus is a genus of South American dwarf sheet spiders that was first described by Eugène Simon in 1884. As of May 2019 it contains only three species: C. delfini, C. pusillus, and C. rastellus.
Mecicobothrium is a genus of dwarf tarantulas first described by Eduardo Ladislao Holmberg in 1882.
Mesida is a genus of long-jawed orb-weavers that was first described by Władysław Kulczyński in 1911.
Actinosoma is a genus of orb-weaver spiders containing the single species, Actinosoma pentacanthum. It was first described by E. L. Holmberg in 1883, and is found throughout South America, from Colombia to Argentina.
Omothymus is a genus of spiders in the family Theraphosidae, found in Malaysia, Indonesia and Singapore.
Cispius is a genus of African nursery web spiders that was first described by Eugène Louis Simon in 1898.
Chilobrachys dyscolus is a species of spider in the tarantula family (Theraphosidae) native to Vietnam. It was first described by Eugène Simon in 1886 as Phrictus dyscolus. It is known as the blue Vietnam tarantula, Asian blue smokey tarantula, Asian smokey earth tiger tarantula or Burma chocolate brown tarantula.
Mastophora extraordinaria is a species of spider in the orb-weaver spider family Araneidae. It is found in South America. Like some other species of the genus Mastophora, adult females resemble bird droppings. Mastophora species, including M. extraordinaria, are "bolas spiders" – adult females capture their prey by using a sticky drop on the end of a single line which they swing at the target, usually a male moth attracted by the release of an analogue of the attractant sex pheromone produced by the female moth. Juveniles and adult males do not use a bolas, catching prey with their legs alone.
