title: The ultrastructure of the organ of Bellonci of Carcinus maenas maenas maenas (Crustacea: Decapoda).
mesh_terms: D000818:Animals; D003386:Brachyura / Q000648:ultrastructure*; D002462:Cell Membrane; D003594:Cytoplasmic Granules; D008854:Microscopy, Electron; D009490:Neurosecretory Systems / Q000648:ultrastructure*; D009899:Optic Lobe, Nonmammalian / Q000648:ultrastructure; D012679:Sense Organs