The molecular layer (I) is unusually wide; the
external granular layer (II) contains nests of, for the most part,
multipolar cells: the
external pyramidal layer (III) contains medium-sized
pyramidal cells which merge with cells of the
internal pyramidal layer (V); a clear cell free zone represents sublayer 5b of layer V; the
multiform layer is wide and has a less clear two sublayer structure; the
internal granular layer (IV) is totally absent. ==See also==