A Case for Below-Ground Dispersal? Insights into the Biology, Ecology and Conservation of Blind Cave Spiders in the Genus (Mygalomorphae: Anamidae).

Previously described from only fragments of exoskeleton and juvenile specimens, the cave spider genus (Araneae: Anamidae), endemic to the Nullarbor Plain, is the only troglomorphic member of the infraorder Mygalomorphae recorded from Australia. We investigated the distribution of in South Australia, collecting and observing the first (intact) mature specimens, widening the number of caves it has been recorded in, and documenting threats to conservation. Phylogenetic analyses support the placement of as an independent lineage within the subfamily Anaminae (the ' group') and provide unequivocal evidence that populations from apparently isolated cave systems are conspecifics of Harvey & Rix, 2020, with extremely low or negligible inter-population mitochondrial divergences.

A taxonomic revision of the tube-web spiders of the genus Ariadna (Araneae: Segestriidae) in Tasmania.

The genus Ariadna Audouin, 1826 is revised for Tasmania to include 13 species, ten of which are described as new: Ariadna abbreviata sp. nov., A.

A ghost in the salt: A new species of halotolerant tube-web spider in the genus emAriadna/em (Araneae: Segestriidae).

A new species of halotolerant Ariadna Audouin, 1826 is described from Western Australia, based on morphological features of both the male and female, and elevating the total number of described species of Ariadna in Australia to 14. This is the first record of the tube-web spider family Segestriidae Simon, 1893 inhabiting salt lakes, where they construct burrows in to the lake surface. The species is likely to be of conservation importance, due to its specialised habitat requirements and the many threats posed to the salt lake ecosystem.