A note on the neurosecretory cells and the axonal pathways in the earthworm, Pheretima posthuma.
D000818:Animals; D000845:Annelida; D001369:Axons / Q000502:physiology*; D005724:Ganglia / Q000033:anatomy & histology*; D006651:Histocytochemistry; D009489:Neurosecretion / Q000502:physiology*