The term area 14r (macaque) refers to a portion of the straight gyrus segmented on the basis of internal structure in the macaque. It is one of two components of area 14 (macaque) in the orbitomedial prefrontal cortex. The other component is area 14c (macaque). A significant structural feature of area 14r is the dysgranular appearance compared to the agranular appearance of the adjacent area 14c ( Carmichael-1994 ). Its human equivalent is area 14r ( Ongur-2003 ). As dysgranular prefrontal cortex, it has no equivalent in the rat ( Wallis-2012 ).