title: Stages and stage distribution in early oogenesis in the Annelid, Platynereis dumerilii.
mesh_terms: D000818:Animals; D000845:Annelida / Q000502:physiology*; D002465:Cell Movement; D002467:Cell Nucleus; D005260:Female; D008540:Meiosis; D008858:Microscopy, Phase-Contrast; D010060:Ovulation; D010063:Ovum / Q000502:physiology*; D013997:Time Factors; D014817:Vitelline Membrane / Q000502:physiology