Nucleus Paranigralis

Nucleus Paranigralis is the third loci in the neuronal chain of the Amenta after Substantia Nigra and Nucleus Brachialis Pigmentosis,

Nucleus Paranigralis is described in the Farlex Partner Medical Dictionary as, " A small cell cluster located in the ventromedial regions of the midbrain and insinuated between the medial aspect of the substantia  nigra and the interpeduncular nucleus" where the latter region could be referencing the Locus Coeruleus and the remaining eight pigmented loci.