The term occipital lobe (Ono) refers to a common alternate definition of the occipital lobe in which the boundaries with the temporal lobe and parietal lobe are defined on the lateral surface by a line connecting the preoccipital notch with the parieto-occipital sulcus. On the medial surface the boundary is defined by the parieto-occipital sulcus to the calcarine fissure, a short segment of calcarine fissure and a vertical line from there to the preoccipital notch ( Ono-1990 ). By this definition the fusiform gyrus and lingual gyrus are subdivided into temporal and occipital portions. In NeuroNames the entire fusiform gyrus is included in the temporal lobe and the entire lingual gyrus in the occipital lobe.