Tartarus murdochensisTartarus murdochensis is a cave spider from Western Australia, in the family Stiphidiidae. The spider was first described in 1992 by Mike Gray.NameThe species epithet, murdochensis, refers to it being found in the Murdoch Sink, a submerged cave system in the Nullarbor Plain of Western and Southern Australia.Conservation statusIn Western Australia, the species is listed as vulnerable.