CORRELATIVE HISTOLOGIC STUDY OF CORPUSCLES OF STANNIUS AND JUXTAGLOMERULAR CELLS OF TELEOST FISHES

Different patterns of organization of corpuscles of Stannius and different types of distribution of juxtaglomerular cells are described in the kidneys of bony fishes. These patterns seem to bear little relationship to taxonomic position. Aldehyde-fuchsin and periodic acid-Schiff staining methods differentiate two kinds of granules in individual cells of the corpuscles of Stannius. Two kinds of cells may also exist in the corpuscles of Stannius of some species. The staining properties of granules in the corpuscles of Stannius and those in the juxtaglomerular cells are different. Juxtaglomerular cells were not found in Acipenser or in any of the Salmonidae examined but were present in all other teleosts. The location of juxtaglomerular cells on the afferent arterioles in many teleosts and their reaction to Bowie's stain suggest their homology with the juxtaglomerular cells of mammals. In fishes, it is conceivable that the juxtaglomerular cells and the corpuscles of Stannius together represent the renin-angiotensin-adrenal (zona glomerulosa) system. © 1970.