... world of either group. We used SEM, vital staining, and extracellular electrophysiological techniques to survey the sensory structures on the telsons of the galatheid Munida quadrispina and the hippid Emerita analoga for comparison with published data on the homologous mechanosensory system in crayfish...

... mode of swimming in the crab Emerita [Hippidae]) is presented, and implications about the evolution and organization of neurobehavioral circuits engendered by this and some other studies of functionally defined neuronal networks are reviewed. Specific neural differences in related animals can only...