title: Ultrastructure of spermatozoa from the American oyster Crassostrea virginica.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D008297:Male; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D008870:Microtubules; D008928:Mitochondria; D010125:Ostreidae; D013094:Spermatozoa / Q000166:cytology*