cranial nerve terminal nerve TAO:0001356 The terminal nerve, located anterior to cranial nerve I, is comprised of a group of cells with somata adjacent to the olfactory bulb and processes that extend anteriorly to the olfactory epithelium and posteriorly to the telencephalon. In teleost fish an additional group of axons extends along the optic tract and delivers putative neuromodulators to the retina. It is thought to develop from cranial neural crest. Whitlock 2004. Also see Grens, Greenwood and Fernald, Brain Behav Evol 2005; 66(1):1-9. nervus terminalis teleost_anatomy