title: [Contribution to the knowledge of the sperm cells of Sabella penicillum (author's transl)].
mesh_terms: D000818:Animals; D000845:Annelida / Q000166:cytology*; D008297:Male; D008854:Microscopy, Electron; D009940:Organoids; D013094:Spermatozoa / Q000166:cytology*
vernacular_title: Beitrag zur Kenntnis der Feinstruktur des Spermiums von Sabella penicillum (Polychaeta.