Pigment movement and the crystalline threads of the firefly eye.
D000818:Animals; D003460:Crystallization; D004175:Diptera / Q000033:anatomy & histology*; D005123:Eye / Q000033:anatomy & histology* / Q000166:cytology; D008854:Microscopy, Electron; D012168:Retinal Pigments / Q000378:metabolism*
D012168:Retinal Pigments