title: [Study on the spermatozoa of Hirudinea with the negative staining technic].
mesh_terms: D000177:Acrosome / Q000648:ultrastructure; D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure; D007865:Leeches / Q000145:classification / Q000648:ultrastructure*; D008297:Male; D008928:Mitochondria / Q000648:ultrastructure; D013045:Species Specificity; D013082:Sperm Tail / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure*; D013194:Staining and Labeling
vernacular_title: Etude des spermatozoïdes d'hirudinees á l'aide de la technique de coloration negative