Setae of the First Antennae of the Copepod Cyclops scutifer (Sars): Their Structure and Importance.
Ultrastructural studies of the setae of the first antennae of Cyclops scutifer (Sars) have revealed their sensory function. The setae are the extension of modified ciliary structures which function as mechanoreceptors. The setae apparently act to detect gravitational and inertial forces. This is of particular importance in sensing disturbances generated by prey or predators.
Department of Earth and Planetary Sciences, The Johns Hopkins University, Baltimore, Maryland 21218.
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