title: Rhombic particle arrays in gill epithelium of a mollusc, Aplysia californica.
mesh_terms: D000818:Animals; D001048:Aplysia / Q000648:ultrastructure*; D002462:Cell Membrane / Q000648:ultrastructure; D004848:Epithelium / Q000648:ultrastructure; D005614:Freeze Fracturing; D005880:Gills / Q000648:ultrastructure*; D008854:Microscopy, Electron