- Aliaporcellana
- Capilliporcellana
- Clastotoechus
- Euceramus
- Enosteoides
- Eulenaios
- Lissoporcellana
- Megalobrachuium
- Minyocerus
- Neopetrolisthes
- Neopisoma
- Pachycheles
- Parapetrolisthes
- Petrolisthes
- Pisidia
- Polyonyx
- Porcellana
- Porcellanella
- Pseudoporcellanella
- Raphidopus
- Ulloaia
Porcelain crabs are decapod crustaceans in the family Porcellanidae, which superficially resemble true crabs. They are a good example of carcinization, whereby a non-crab-like animal (in this case a relative of a squat lobster) evolves into an animal that only a specialist would know is not a true crab. They live in all the world's oceans, except the Arctic Ocean and the Antarctic.
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