Nemesiidae

[3] The family is sometimes referred to as wishbone spiders due to the shape of their burrows.

[4] Nemesiidae are relatively large spiders with robust legs and a body that is nearly three times as long as it is wide.

They are darkly colored, brown to black, though some have silvery hairs on their carapace.

They rarely leave their burrows, catching prey and withdrawing as quickly as possible.

[6] As of March 2022[update], the World Spider Catalog accepts the following genera:[7] Transferred to other families:[8][9][10][11][12] †Eodiplurina Petrunkevitch 1922 Florissant Formation, United States, Eocene

Raveniola chayi , female