A new species of blind subterranean Tetrablemma (Araneae: Tetrablemmidae) from Australia

The first blind Australian species of Tetrablemmidae and only the fourth in the world, Tetrablemma alaus, new species, is described from subterranean habitats in northwestern Australia. The total loss of eyes is correlated with its subterranean existence and is complemented by other troglomorphies including slightly elongated appendages and pale coloration.