Reactions to light in Planaria maculata with special reference to the function and structure of the eyes (1918)
Taliaferro, William Hay, 1895- · Baltimore · leaf 176
is illuminated from each of sever-al different directions. Light, which strikes the eyefrom directly in front of the animal, illuminates thoserhabdomes which lie on the outer posterior margin of thepigment oup. The longitudinal axes of all of theserhabdomes are directed parallel to the rays of… … QC- A r
