Order of sea spiders that have adopted an underwater life, with spindly legs and a small, vestigial abdomen. Although they resemble true spiders in appearance there are considerable anatomical differences. They date back to the Devonian era and there are about 85 genera and 1000 living species.
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- Jason Dunlop - Research Interests Among his other research interests, Jason Dunlop is working on a fossil pantopod larva.
- Introduction to the Pycnogonida Brief introduction to sea spiders, including information on their feeding and anatomy.
- Sea Spiders: Class Pycnogonida An introduction to the biology and ecology of Sea Spiders (Arthropoda: Pycnogonida).
- Class Pycnogonida (Sea Spiders) Short introduction from the Animal Diversity Web.