Water surface locomotion by spiders: Distinct gaits in diverse families

Suter, Stratton, & Miller (2003): Journal of Arachnology, 31:428–432

Geolycosa sp. at the entrance to its burrow. When on the water surface, these spiders walk just as they do on land, but their progress is slow.

A newly molted tetragnathid. When on the water surface, these spiders use their first pair of legs, alternately, for propulsion.

Dolomedes triton rows across the water surface using its second and third pairs of legs, the members of each leg pair moving in unison.

When it needs to move rapidly, Dolomedes switches gaits and gallops across the water.

Salticids use a rowing motion to move across the water surface. The members of the third pair of legs, moving in unison, provide most of the propulsive force.

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