Xanthidae

Xanthidae
Xantho poressa
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Superfamily: Xanthoidea
Family: Xanthidae
Macleay, 1838 
Subfamilies
  • Actaeinae Alcock, 1898
  • Banareiinae Števčić, 2005
  • Chlorodiellinae Ng & Holthuis, 2007
  • Cymoinae Alcock, 1898
  • Etisinae Ortmann, 1893
  • Euxanthinae Alcock, 1898
  • Glyptoxanthinae Mendoza & Guinot, 2011
  • Kraussiinae Ng, 1993
  • Liomerinae T. Sakai, 1976
  • Polydectinae Dana, 1851
  • Xanthinae MacLeay, 1838
  • Zosiminae Alcock, 1898

Xanthidae is a family of crabs known as gorilla crabs, mud crabs, pebble crabs or rubble crabs. Xanthid crabs are often brightly coloured and are highly poisonous, containing toxins which are not destroyed by cooking and for which no antidote is known. The toxins are similar to the tetrodotoxin and saxitoxin produced by puffer fish, and may be produced by bacteria in the genus Vibrio living in symbiosis with the crabs, mostly V. alginolyticus and V. parahaemolyticus.