start stage end stage white matter preopticohypophyseal tract preopticohypophyseal axon tract ZFA:0005789 2014-04-03T11:19:03Z zebrafish_anatomy Axon tract originating from the two hemispheres of the neurosecretory preoptic areas converging into the midline and terminating at the ventral part of the hypothalamus at the presumed location of the pituitary. Analogous to the supraopticohypophyseal tract in mammals. Ceri unknown adult