title: Grid patterns in the retinal organization of the cichlid fish Astronotus ocellatus.
mesh_terms: D000818:Animals; D005399:Fishes / Q000033:anatomy & histology*; D009474:Neurons; D010786:Photoreceptor Cells; D012160:Retina / Q000033:anatomy & histology* / Q000166:cytology / Q000502:physiology; D014785:Vision, Ocular