What is carcinology?
Carcinology is the scientific study of crustaceans.
A crustacean is an arthropod with a hard shell, several pairs of jointed legs, and usually lives in water. Crabs, Lobsters, Crayfish, Water Fleas, Krill, Barnacles, Copepods, Prawns, and Shrimp are crustaceans.
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The Pederson’s Shrimp (Ancylomenes pedersoni or Periclemenes pedersoni) is a marine (saltwater) crustacean in the Palaemonidae family of shrimp. It is also known as the Pederson’s Cleaner Shrimp. It is related to the crab and the lobster.
The Pederson’s Shrimp is a small, transparent (see-through) shrimp with blue or violet markings on its body. It has long, white antennae.
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The Giant Isopod Crustacean (Bathynomus giganteus) is a deep-sea aquatic saltwater crustacean. It is related to the shrimp and the crab.
The Giant Isopod Crustacean is a decapod with 10 legs. It looks like a woodlouse because it has a hard exo-skeleton with overlapping segments. It can curl up into a ball. It has large compound eyes. It is pinkish or pale-lilac in colour.
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What is a crustacean?
A crustacean is an arthropod with a hard exo-skeleton, called a carapace.
A crustacean includes the crab, lobster, crayfish, shrimp, prawn, krill, woodlouse, sandhopper, and barnacle.
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The Armoured Shrimp (Atya gabonensis) is a freshwater crustacean. It is also known as the African Fan Shrimp, the African Filter Shrimp, the Cameroon Armoured Shrimp, or the Blue Rhino Shrimp. It is related to the crab and the lobster.
The Armoured Shrimp can vary in colour from creamy-white to rusty brown and deep blue.
The Cherry Shrimp (Neocaridina davidi) is a freshwater crustacean. It is related to crabs and lobsters.
The Cherry Shrimp is green-brown, but can be red, yellow, orange, green, blue, purple, black, white, and transparent. The male is smaller and not as colourful as the female.
The Pacific Cleaner Shrimp (Lysmata amboinensis) is a marine (saltwater) crustacean. It is related to crabs and lobsters. It is also known as the Skunk Cleaner Shrimp.
The Pacific Cleaner Shrimp is pale with long scarlet bands on its shell. Its shell is called a carapace. It has several white spots on its red tail. It has two pairs of long antennae (4 antennae in total). One antenna is forked into two parts, making it look as if there are three pairs of antennae. It is a decapod, with 10 legs. Two of its legs – the ones in the front, near its head, are pincers. Pincers are also called nippers or claws. Its eyes are located at the tip of each of its two short stalks on its head.