[Neuronal structure of septal nuclei of the forebrain nuclei of reptiles]

Cytoarchitectonics and neuronal composition of the telencephalon septum in two species of the squamatous reptiles (Agamidae) were investigated by means of certain neurohistological methods. Cytoarchitectonics of the agama septum is similar to that of other reptiles and composed of medial and lateral nuclei. Multipolar, spindle and pyriformed cells representing various radial and leptodendritic neurons of isodendritic (nonspecialized) type are revealed. A detailed characteristic of the dendritic and axonic tree of the septum cells in presented and compared to the literature data on the mammalian septal cells. The problem connected with the evolution of structure and function of the Vertebrata septal complex are discussed.