The eMouseAtlas team have generated a series of 3D images to capture mouse embryo development and to use as a spatial framework for gene-expression and other spatially organised data. The resource is published and available on the Web at http://www.emouseatlas.org/emap/ema/. This image data is a subsampled version of the original data which can be obtained from the dmdd.org.uk site.citation.txt - how to cite use of this image embryo_notes.pdf - if present notes on the anatomy segmentation model_info.txt - if present the embryo text description that appears at the top of the printed atlas page thumb.jpg - thumbnail image for the embryo README.txt - information on the 3D models Surfaces.zip - if present a zip archive of stl surfaces of the painted anatomy [filename]_anatomy.nii - if present a NIfTI format index image of anatomy domains [filename]_anatomy.txt - if present a text file defining the index terms and colours [filename]_anatomy.wlz - if present a woolz format file of the anatomy index image [filename]_reference.nii - NIfTI format grey-level image of the model [filename]_reference.wlz - woolz format grey-level image of the model url.txt - text file providing the URL for the image on the emouseatlas.org web resource.