The Limbic System is usually considered as composed of the following:
The cingulate gyrus - lies above the corpus callosum, connects the system to the cerebral cortex.
The hypothalamus - contains the pleasure, reward, or satiety center.
Mamillary body - contains memory pathways, especially for olfaction.
Hippocampus - responsible for short and long term memory and learning.
Amygdaloid nucleus - also part of the basal nuclei, important in emotional motor responses.
Part of the thalamus and the fornix.