Xanthidae

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.

==Classification== Many species formerly included in the family Xanthidae have since been moved to new families. Despite this, Xanthidae is still the largest crab family in terms of species richness, contanining the following subfamilies and genera: Actaeinae Actaea Actaeodes Actaeops † Allactaea Eoxanthops † Epiactaea Epiactaeodes Forestiana Gaillardiellus Heteractaea Lambropsis † Lobiactaea Meractaea Novactaea Odhnea Paractaea Paractaeopsis Phlyctenodes † Platyactaea Pseudoliomera Pseudophlyctenodes † Rata Serenius Banareiinae Banareia Calvactaea Pseudactaea Trichia Chlorodiellinae Chlorodiella Cyclodius Liocarpilodes Luniella Pilodius Ratha Soliella Sulcodius Tweedieia Vellodius Cymoinae Cymo Etisinae Etisus Paraetisus Euxanthinae Alainodaeus Batodaeus Carpoporus Cranaothus Crosnierius Danielea Edwardsium Epistocavea Euxanthus Gothus Guinotellus Hepatoporus Hypocolpus Jacforus Ladomedaeus Lipaesthesius Lipkemedaeus Medaeops Medaeus Miersiella Monodaeus Olenothus Palatigum Paramedaeus Paraxanthodes Pilomedaeus Pleurocolpus Psaumis Rizalthus Takedax Visayax Glyptoxanthinae   Glyptoxanthus Kraussiinae Garthasia Kraussia Palapedia Liomerinae Actiomera Bruciana Liomera Lipkemera Neoliomera Neomeria † Paraliomera Polydectinae Lybia Polydectus Tunebia Xanthinae Aldrovandiopanope Aristotelopanope Bottoxanthodes Camilohelleria Cataleptodius Coralliope Cycloxanthops Demania Epixanthops Eurycassiope Euryxanthops Gaudichaudia Guitonia Juxtaxanthias Lachnopodus Leptodius Liagore Lioxanthodes Macromedaeus Marratha Megametope Megamia † Metaxanthops Metopoxantho † Neolioxantho Neoxanthias Neoxanthops Orphnoxanthus Ovatis Palaeoxanthops † Paraxanthias Paraxanthus Pestoxanthodes Pseudomedaeus Wardoxanthops Williamstimpsonia Xanthias Xantho Xanthodius Zosiminae Atergatis Atergatopsis Lophozozymus Paratergatis Platypodia Platypodiella Pulcratis Zosimus Zozymodes Incertae sedis Haydnella † Nogarolia † Sculptoplax †