Fine structure of gametes of Nereis limbata (Annelida) before and after interaction.
D000818:Animals; D000845:Annelida / Q000166:cytology*; D005321:Extraembryonic Membranes / Q000166:cytology*; D005260:Female; D005306:Fertilization; D008297:Male; D008854:Microscopy, Electron; D010063:Ovum / Q000166:cytology*; D013094:Spermatozoa / Q000166:cytology*; D013194:Staining and Labeling