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*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:7612*  Cite 

High resolution image of Halteria showing the extension of buccal cavity and the cytopharynx passing into the cell. Vesicles accumulate at the cytopharynx next to the lamellae. These vesicles may be homologs of discoidal vesicles and acidosomes as described in Paramecium. A large nascent food vacuole lies next to the cytopharynx. Basal bodies without cilia lie next to the pellicle and are associated with nemodesmata that pass into the cell as bundles of microtubules. TEM taken on 3/18/71 by R. Allen with Hitachi HU11A operating at 75kV. Neg 13,750X. The raw film was scanned with a Nikon Coolscan 9000ED. This image is suitable for quantitative analysis. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. Additional information available at (

Biological Sources
NCBI Organism Classification
Halteria grandinella
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cell Line
Carolina Biological Supply Co., NC, U.S.A.
Cellular Component
digestive vacuoles
cortical microtubule cytoskeleton
Biological Context
Biological Process
cytoskeleton organization
Richard Allen
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Grouping This image is part of a group.
Image Type
transmission electron microscopy (TEM)
illumination by electrons
Image Mode
detection of electrons
Parameters Imaged
electron density
Source of Contrast
stain with broad specificity
Visualization Methods
stain with broad specificity
osmium tetroxide
uranyl salt
lead salt
Processing History
recorded image
unprocessed raw data
Data Qualifiers
raw, unprocessed data
Spatial Axis Image Size Pixel Size
X 4623px 1.1nm
Y 5114px 1.1nm