This study compares the cytoarchitectonic parcellation of the prefrontal cortex (PFC) in the mouse as presented in publications that are commonly used for identifying brain areas. Agreement was found to be greater for boundaries in the medial PFC than in the lateral PFC and lowest for those in the orbital areas of the PFC. In this review, we explain and illustrate in a selected series of photographs and stereotactic pictures the differences in location and terminology of the different prefrontal cortical areas. The significance of cytoarchitectonic parcellation is discussed.