Image
Harvestmen mouthparts
Slice-through view of chelicerae – enlarged mouthpart appendages of the arachnid-like harvestmen (from the order Opiliones). The corresponding grey image shows what the external morphology looks like.
Scientists use different characteristics like these anatomical features to compare and classify different species.
Jaimi Gray made her image of harvestmen mouthparts available under a Creative Commons attribution license for this article.