title: The fine structure of the retinula of the compound eye of Astacus fluviatilis.
mesh_terms: D000818:Animals; D003400:Astacoidea / Q000166:cytology*; D001369:Axons / Q000166:cytology; D002467:Cell Nucleus; D002473:Cell Wall; D003594:Cytoplasmic Granules; D005110:Extracellular Space; D006056:Golgi Apparatus; D002479:Inclusion Bodies; D007365:Intercellular Junctions; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria; D010860:Pigments, Biological; D012160:Retina / Q000166:cytology*
chemical_list: D010860:Pigments, Biological