The relation between capillaries and neurons in the caudal neurosecretory system of Pomatomus saltatrix

The caudal neurosecretory system of Pomatomus saltatrix was examined. Particular interest was devoted to the perikarya of the neurosecretory cells. The majority of these cells were characterized by a close association with the capillary network. The cells appeared to ensheath the capillaries thus bringing the nucleus and perinuclear cytoplasm into close association with the capillaries.