The fine structure of the acanthor shell of Pomphorhynchus laevis (Acanthocephala).
D000818:Animals; D003530:Cyprinidae; D005260:Female; D006376:Helminths / Q000166:cytology* / Q000302:isolation & purification; D008854:Microscopy, Electron; D010063:Ovum / Q000166:cytology