Ultrastructural studies on a "nine plus one" flagellum 1.
D000818:Animals; D005407:Flagella / Q000166:cytology*; D008297:Male; D008722:Methods; D008854:Microscopy, Electron; D010784:Photomicrography; D013094:Spermatozoa / Q000166:cytology; D013194:Staining and Labeling; D014419:Turbellaria / Q000166:cytology*