The Theridion strepitus is in the Theridiidae family and does not have any eyes.

Theridion strepitus is a blind cave spider found only on the Galapagos Islands.

The strepitus (Latin for "great noise"), made by slamming a book shut, banging a hymnal or breviary against the pew, or stomping on the floor, symbolizes the earthquake that followed Christ's death, although it may have originated as a simple signal to depart.

The 'strepitus', as it is known more probably symbolizes the earthquake that followed Jesus' death: "And, behold, the veil of the temple was rent in twain from the top to the bottom; and the earth did quake, and the rocks rent" Matthew 27:51(AV).