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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 .
Various crustaceans, all of interest to carcinologists. Carcinology is a branch of zoology that consists of the study of crustaceans.Crustaceans are a large class of arthropods classified by having a hard exoskeleton made of chitin or chitin and calcium, three body regions, and jointed, paired appendages. [1]
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]
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.
Porcellana platycheles, the broad-clawed porcelain crab, is a species of porcelain crab from the family Porcellanidae. It is found on the coasts of the eastern ...
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 ]