| Achaeus spinosus | |
|---|---|
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| Decorator crab (Achaeus spinosus) covered in hydropolypes on Ianthella basta (elephant ear sponge). This crab is using hydropolypes to cover its shell in order to provide protection from predators. The crab benefits from the hydropolype's sting while the hydropolypes benefit from the crab's mobility allowing it to feed in a larger area. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Inachidae |
| Genus: | Achaeus |
| Species: | A. spinosus
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| Binomial name | |
| Achaeus spinosus | |
Achaeus spinosus is a small decapod which belongs to the large family of the Inachidae or the spider crabs.
- ^ Peter Davie (2013). "Achaeus spinosus Miers, 1879". WoRMS. World Register of Marine Species. Retrieved May 7, 2013.