Statolith hair movements and the regulation of tonic gravity reflexes in the lobster, Homarus americanus.

1. The irregularity of the statolith of the lobster, Homarus americanus, probably causes a large and haphazard variation in the response of the individual statocyst receptors to body rotation. 2. Lobster gravity reflexes are regulated by the summed responses of the statocyst receptors; this probably compensates for the haphazard variation in the sensory input.