title: A comparative study of the ultrastructure of the water-blood pathway in the secondary lamellae of teleost and elasmobranch fishes--benthic forms.
mesh_terms: D000818:Animals; D001485:Basement Membrane; D003593:Cytoplasm; D003594:Cytoplasmic Granules; D004847:Epithelial Cells; D005399:Fishes / Q000033:anatomy & histology*; D005880:Gills / Q000098:blood supply / Q000166:cytology* / Q000502:physiology; D006652:Histological Techniques; D008854:Microscopy, Electron; D009093:Mucus; D013045:Species Specificity