The rhabdomeric microvilli of several arthropod compound eyes kept in darkness.
D000818:Animals; D001181:Arthropods / Q000033:anatomy & histology*; D003445:Crustacea / Q000033:anatomy & histology; D003624:Darkness; D004330:Drosophila / Q000033:anatomy & histology; D005123:Eye / Q000166:cytology*; D006652:Histological Techniques; D007313:Insecta / Q000033:anatomy & histology; D008854:Microscopy, Electron; D011984:Sensory Receptor Cells / Q000166:cytology