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You may find it useful to read the introductory notes before starting. These contain technical and background information.

Each species has its own page where the images are displayed. Left and Right images are displayed next to each other, followed by a colour and/or monochrome anaglyph to be viewed using red/green spectacles, and an image of gemmae when available. Use the menu on the left side of the page to select the species you wish to view. To return to this page after viewing an image click the 'back' button on your browser to return to the point in the index where you left it, or click 'Index' to return to the beginning of the index. Use the navigation bar at the top to move between different pages.