ARTHROPOD PREPARATION FOR BEHAVIORAL, ELECTROPHYSIOLOGICAL, AND BIOCHEMICAL STUDIES.

Electrodes and cannulea can be permanently implanted in the horseshoe crab, Limulus polyphemus. Recordings of electrical activity can be obtained from the optic nerve, heart, and abdominal ganglia and the cannulae are effective routes for introducing isotopes into the nervous system. The animals survive for at least 13 days and are not behaviorally impaired.