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Comparative studies on receptor structure in the brittlestarOphiura ophiura
SummaryThe morphology of cells incorporating modified cilia in the epithelium of the spines, tube-feet and general surface of the ophiuroid echinodermOphiura ophiura are described using transmission
Studies on the integration of sensory information by the nervous system of the brittlestar Ophiura ophiura
Stimuli of all modalities that were above a threshold that could be considered threatening gave rise to activity conducted rapidly (80 cm/sec) and relatively unchanged throughout all radial nerve cords and the circumoral nerve ring.