Alternate header for print version

Public Domain: This image is in the public domain and thus free of any copyright restrictions. However, as is the norm in scientific publishing and as a matter of courtesy, any user should credit the content provider for any public or private use of this image whenever possible. Learn more
*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:39245*  Cite 

A view of a part of the oral apparatus of Conchophthirus which reveals details of cortical structure. This includes one oral membranelle and three vestibular kinities as well as cytoplasm and cortical structure. The negative magnification is 6,800X. The raw film was scanned with an Epson Perfection V750 Pro. This image is best used for quantitative analysis. For greater detail see:Antipa, G. A. 1971. Structural differentiation in the somatic cortex of a ciliated protozoan, Conchophthirus curtus Engelmann, 1862. Protistologica 7:47l-501.

Technical Details

Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 65nm thickness.

Biological Sources
NCBI Organism Classification
uncultured scuticociliate
Conchophthirus curtus
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cellular Component
oral apparatus
plasma membrane
cortical cytoskeleton
cortical microtubule cytoskeleton
cilium axoneme
Gregory Antipa (San Francisco State University)
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
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
suitable for spatial measurements
Spatial Axis Image Size Pixel Size
X 3999px 1.2nm
Y 3889px 1.2nm