The substantia ferruginea is an underlying patch of deeply pigmented nerve cells located in the floor of the superior part of the sulcus limitans.
It was coined in 1838 and 1851.
See also Rhomboid fossa Sulcus limitans Locus ceruleus Fourth ventricle
References
External links Atlas Image of the Posterior View of the Floor of Fourth Ventricle substantia ferruginea from MedicineWord