Nihoa (spider)

Nihoa is a genus of South Pacific brushed trapdoor spiders first described by Tracey Churchill & Robert Raven in 1992. It is named after the island Nihoa, where the type species (N. mahina) is endemic.[2]

Nihoa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Mygalomorphae
Family: Barychelidae
Genus: Nihoa
Raven & Churchill, 1992[1]
Type species
N. mahina
Churchill & Raven, 1992
Species

23, see text

Male Nihoan trapdoor spiders (N. hawaiiensis) grow to almost 15 millimetres (0.59 in) long, including chelicerae. The females are larger, growing up to 21 millimetres (0.83 in).[3]

Species

As of April 2019 it contains twenty-three species:[1]

  • Nihoa annulata (Kulczyński, 1908) – New Guinea
  • Nihoa annulipes (Thorell, 1881) – New Guinea
  • Nihoa aussereri (L. Koch, 1874) – Palau Is.
  • Nihoa bisianumu Raven, 1994 – New Guinea
  • Nihoa courti Raven, 1994 – New Guinea
  • Nihoa crassipes (Rainbow, 1898) – New Guinea
  • Nihoa gressitti Raven, 1994 – New Guinea
  • Nihoa gruberi Raven, 1994 – Papua New Guinea (New Ireland)
  • Nihoa hawaiiensis (Raven, 1988) – Hawaii
  • Nihoa itakara Raven, 1994 – New Guinea
  • Nihoa kaindi Raven, 1994 – New Guinea
  • Nihoa karawari Raven, 1994 – New Guinea
  • Nihoa lambleyi Raven, 1994 – New Guinea
  • Nihoa madang Raven, 1994 – New Guinea
  • Nihoa mahina Churchill & Raven, 1992 (type) – Hawaii
  • Nihoa maior (Kulczyński, 1908) – New Guinea
  • Nihoa mambulu Raven, 1994 – Solomon Is.
  • Nihoa pictipes (Pocock, 1899) – New Guinea, Papua New Guinea (New Britain, New Ireland), Solomon Is.
  • Nihoa raleighi Raven, 1994 – New Guinea
  • Nihoa tatei Raven, 1994 – New Guinea
  • Nihoa vanuatu Raven, 1994 – Vanuatu
  • Nihoa variata (Thorell, 1881) – New Guinea
  • Nihoa verireti Raven, 1994 – New Guinea

References
  1. "Gen. Nihoa Raven & Churchill, 1992". World Spider Catalog Version 20.0. Natural History Museum Bern. 2019. doi:10.24436/2. Retrieved 2019-05-16.
  2. Churchill, T. B.; Raven, R. J. (1992). "Systematics of the intertidal trapdoor spider genus Idioctis (Mygalomorphae: Barychelidae) in the western Pacific with a new genus from the northeast". Memoirs of the Queensland Museum. 32: 9–30.
  3. Raven, Robert J. (1988-12-22). "A revision of the mygalomorph spider genus Idioctis (Araneae, Barychelidae)" (PDF). American Museum Novitates. American Museum of Natural History. 2929: 1–14.
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