eye-spots which may be set into a pit to reduce the angles of light that enters and affects the eyespot, to allow the organism to deduce the angle of incoming light [ http://en.wikipedia.org/wiki/Stemma http://en.wikipedia.org/wiki/Eye#Pit_eyes ]
Term information
uberon_slim
eye-spots which may be set into a pit to reduce the angles of light that enters and affects the eyespot, to allow the organism to deduce the angle of incoming light