Morphology and responses to light of the somata, axons, and terminal regions of individual photoreceptors of the giant barnacle

摘要

1. The median eye of the giant barnacle, B. nubilus, comprises four large photoreceptor neurones which are visible under the dissecting microscope for almost their entire length. We have studied the structure of, and the responses to light recorded in, the somata, axons, and terminal regions of these neurones.