''Thomasettia'' a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

s in the family

Sparassidae Huntsman spiders, members of the family Sparassidae (formerly Heteropodidae), are known by this name because of their speed and mode of hunting. They are also called giant crab spiders because of their size and appearance. Larger species sometim ...

, with a single species, ''Thomasettia seychellana'', first described in 1911. It has not been found since, and has been declared extinct. It was endemic to

Mahe Island Mahe, Mahé, Mähe, or MAHE may refer to: Places China * Mahe Township (, lit. "Horse Creek Village") in Li County in Gansu Estonia * Mähe, a subdistrict of Tallinn, Estonia India * Mahé, India, a municipality in Mahé distric ...

and

Silhouette Island Silhouette Island lies northwest of Mahé in the Seychelles. It is the third largest granitic island in the Seychelles. It has an area of 20.1 km2 and has a population of 200, mostly workers on the island. The main settlement is La Passe ...

in the

Seychelles Seychelles (, ; ), officially the Republic of Seychelles (french: link=no, République des Seychelles; Creole: ''La Repiblik Sesel''), is an archipelagic state consisting of 115 islands in the Indian Ocean. Its capital and largest city, V ...

References

Endemic fauna of Seychelles Sparassidae Extinct arachnids Extinct invertebrates since 1500 Monotypic Araneomorphae genera Spiders of Africa {{sparassidae-stub