A Study of the Hippocampal Formation in the Opossum, Didelphis virginiana

  • Earl G. Hamel


The medial telencephalic wall is composed of cortical and nuclear areas forming part of the rhinencephalic ring or limbic lobe of the cerebrum. This lobe includes the septum, the hippocampal formation, and the amygdala, the organization of which in the marsupial is quite simple but sets a pattern for higher mammalian forms. In the marsupial, this pattern remains relatively uncomplicated because the rostrocaudal extent of the dorsal portion of the ring is not interrupted by the corpus callosum. The present paper deals with the hippocampal formation of the opossum, Didelphis virginiana. This area, along with the amygdala and the septal area, is also under investigation in certain kangaroos and South American marsupials, with the findings to be presented at a later date.


Dentate Gyrus Hippocampal Formation Piriform Cortex Septal Area Anterior Olfactory Nucleus 
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Copyright information

© Springer Science+Business Media New York 1966

Authors and Affiliations

  • Earl G. Hamel
    • 1
  1. 1.Department of AnatomyUniversity of Alabama Medical CenterBirminghamUSA

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