Vesicles and early endosomes under the membranelles of the peniculus of the buccal cavity. Cilia and basal bodies are tangentially fractured in this quick-freeze deep-etch preparation. Preendosomal vesicles, clathrin-coated and partially uncoated, that arise from the clathrin-coated ends of parasomal sacs lie nearest the basal body/cilium complexes. Internal to these are the many early endosomes to which the uncoated preendosomal vesicles fuse and from which smaller clathrin-coated vesicles bud off. Blebs protrude from one early endosome. Carrier vesicles of about 100nm in diameter are found internal to the early endosomes. TEM taken on 7/19/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 12,000X. Bar = 0.5µm. Adapted with permission from J. Cell Sci. A print of the negative was scanned and processed in Photoshop. This image is best used for qualitative analysis. A high resolution image (CIL:12636) is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).