title: The spermatozoa and spermiogenesis of Perophora formosana (Ascidia) with special reference to the striated apical structure and the filamentous structures in the mitochondrion.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D006056:Golgi Apparatus / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D008928:Mitochondria / Q000648:ultrastructure; D013087:Spermatids / Q000648:ultrastructure; D013091:Spermatogenesis; D013094:Spermatozoa / Q000648:ultrastructure; D014561:Urochordata / Q000502:physiology / Q000648:ultrastructure*