Oögenesis of the freshwater turbellarian Hydrolimax grisea (Platyhelminthes; Plagiostomidae) with special reference to the history of the supernumerary asters and central bodies.
D000818:Animals; D002455:Cell Division; D002467:Cell Nucleus; D002875:Chromosomes; D003593:Cytoplasm; D005260:Female; D005306:Fertilization; D008297:Male; D010063:Ovum / Q000254:growth & development*; D013094:Spermatozoa; D014419:Turbellaria / Q000502:physiology*