Neurosecretory activity in the brain of the water-beetle, Dytiscus marginalis.
D000818:Animals; D001921:Brain / Q000166:cytology* / Q000502:physiology*; D001517:Coleoptera; D006651:Histocytochemistry; D009474:Neurons / Q000166:cytology; D009489:Neurosecretion / Q000502:physiology*; D013194:Staining and Labeling; D014465:Ultrasonics