The Interrelation of the Eyes of Palaemonetes as Concerns Retinal Pigment Migration

Abstract

Celloidin-alcohol-ether mixtures ap plied externally to the eyes of Palaemonetes tend to destroy them, but plaster of Paris-lampblack mixtures are without destructive effect. If both eyes of a previously light-adapted animal are blackened, complete dark adaptation may occur. If only 1 eye of a similar animal is blackened, complete dark adaptation of the covered eye may also result. It is probable that in Palaemonetes an illuminated eye is without "sympathetic" effect by way of the central nervous system on the photo-mechanical changes of the covered eye.