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Trapdoor

Trapdoor spiders hide in an underground nest they line with their silk, and then conceal it with a hinged silk lid, the trapdoor.

Aptostichus barackobamai

The Barack Obama trapdoor spider (Aptostichus barackobamai) is a species of trapdoor spider named after the 44th President of the United States, Barack Obama.

see also

Idiosoma nigrum

Idiosoma nigrum, also called Black rugose trapdoor spider, occurs only in south-western Australia, in dry woodlands east of the Darling Scarp and north to Moore River.

Kingston Park, South Australia

Bird, animal and insects include the Harlequin Bird, Dicaeum Hirundinaceum, the Shingle-back Lizard, Trachyosaurus rugosus and the Trapdoor Spider.

Phragmosis

An example can be seen in the mygalomorph spider Idiosoma nigrum (Black Rugose Trapdoor Spider), which protects itself in its burrow by positioning itself so as to block the burrow with its abdomen, which is unusually hard.

S. robustum

Sason robustum, a trapdoor spider species only found in southern India, Sri Lanka and the Seychelles