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Carcinisation (American English: carcinization) is a form of convergent evolution in which non-crab crustaceans evolve a crab-like body plan. The term was introduced into evolutionary biology by L. A. Borradaile , who described it as "the many attempts of Nature to evolve a crab".
Porcelain crabs are an example of carcinisation, whereby a noncrab-like animal (in this case a relative of a squat lobster) evolves into an animal that resembles a true crab. [5] [6] Porcelain crabs can be distinguished from true crabs by the apparent number of walking legs (three instead of four pairs; the fourth pair is reduced and held ...
Allopetrolisthes spinifrons is a species of porcelain crab. It displays "hypercarcinisation", whereby the resemblance to a true crab is enhanced by sexual dimorphism of the abdomen. It lives along the Pacific coast of Peru and Chile, as a symbiont of a sea anemone .
Petrolisthes cabrilloi, also known as the Cabrillo porcelain crab, is a species of crab. [1] Native to the Pacific coast of North America, it was first described to science by Steve Glassell in 1945. [2] [3] Its range is believed to be from Morro Bay to Baja California. [4]
Pisidia longicornis, the long-clawed porcelain crab, is a species of porcelain crab that lives in the north-eastern Atlantic Ocean. It varies from reddish to white, and grows to a carapace width of 1 cm (0.4 in). It was first named by Carl Linnaeus in 1767, although the etymology remains unclear.
Petrolisthes cinctipes is a species of marine porcelain crab found in the eastern Pacific Ocean, from British Columbia to Mexico. [1] This species was first described by John Witt Randall in 1840. [ 2 ]
Neopetrolisthes maculatus is a species of porcelain crab from the Indo-Pacific region. [2] It is a small, colourful crustacean with a porcelain-like shell. This porcelain crab is usually found within the stinging tentacles of a number of sea anemone species.
Cardisoma guanhumi, Woodford Hill, Dominica Gecarcinus lateralis, Woodford Hill Guinotia dentata, Emerald Pool, Dominica Atlantic ghost crab (Ocypode quadrata), Calibishie, Dominica. Thirty-two species of decapod crustaceans have been recorded in Dominica, an island nation in the Caribbean Lesser Antilles.