|Hawaiian pompom crab, Lybia edmondsoni|
H. Milne-Edwards, 1834 
Latreille in Milbert, 1812 
Lybia is a genus of small crabs in the family Xanthidae. Their common names include boxer crabs, boxing crabs and pom-pom crabs. They are notable for their mutualism with sea anemones, which they hold in their claws for defense. In return, the anemones get carried around which may enable them to capture more food particles with their tentacles. Boxer crabs use at least three different species of anemones, including Bundeopsis spp. and Triactis producta. The bonding with the anemone is not required for survival, however, and boxer crabs have frequently been known to live without them, sometimes substituting other organisms such as sponges and corals for the sea anemones.
The genus Lybia contains the following species:
- Lybia australiensis (Ward, 1933)
- Lybia caestifera (Alcock, 1898)
- Lybia denticulata Nobili, 1905
- Lybia edmondsoni Takeda & Miyake, 1970
- Lybia hatagumoana Sakai, 1961
- Lybia leptochelis (Zehntner, 1894)
- Lybia plumosa Barnard, 1947
- Lybia pugil (Alcock, 1898)
- Lybia tessellata (Latreille in Milbert, 1812)
- Lybia tutelina C. G. S. Tan & Ng, 1994
- "Lybia H. Milne Edwards, 1834". Integrated Taxonomic Information System. Retrieved March 1, 2011.
- Peter K. L. Ng, Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology 17: 1–286.
- Abigail Smigel (July 17, 2002). "Creature Feature: Not Quite Muhammed Ali". Deeper Blue.
- Boxer Crab, Lybia tesselata. Aquarium World
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