. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SPERMIOGENESIS AND FERTILIZATION IN A LIMPET 311. Figures 9-14. Electron micrographs of sperm and egg structure in Tectura testudinalis. Figure 9. Longitudinal section of late spennatid. Acrosomal vesicle (AV) extending posterior lobe into subacrosomal space (SAS). Residual cytoplasm (RC) next to nucleus (N) will be shed when sperm matures. Scale bar = pm. Figure 10. Longitudinal section through mature sperm showing plasma membrane (PM) enclosing outer (OM) and inner (IM) acrosomal membranes. Note nucleus (N) with lacuna


. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. SPERMIOGENESIS AND FERTILIZATION IN A LIMPET 311. Figures 9-14. Electron micrographs of sperm and egg structure in Tectura testudinalis. Figure 9. Longitudinal section of late spennatid. Acrosomal vesicle (AV) extending posterior lobe into subacrosomal space (SAS). Residual cytoplasm (RC) next to nucleus (N) will be shed when sperm matures. Scale bar = pm. Figure 10. Longitudinal section through mature sperm showing plasma membrane (PM) enclosing outer (OM) and inner (IM) acrosomal membranes. Note nucleus (N) with lacuna (L). acrosome with layered contents and subacrosomal flocculent material (arrowhead). Scale bar = pm. Inset: Transverse sections of acrosome near tip, showing electron-dense stratifications (small arrows) and through subacrosomal space showing outer (OM) and inner (IM) acrosomal membranes enclosed by plasma membrane (PM). Scale bar = Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory


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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology