True Crabs
The king crab is one of the largest crabs, weighing 5 kg (11 pounds) or more. Its size and tasty flesh make it a valued food, and large numbers are commercially fished each year. The name king crab is also used for members of the arthropod order Xiphosura, which is commonly called horseshoe crab (q.v.).
king crab | crustacean - Encyclopedia Britannica
What is the difference between true crab and false crab?
Crabs are decapod crustaceans of the infraorder Brachyura and are considered "true crabs", most of which are carcinized. "False crabs" are of the infraorder Anomura. This group evolved crab-like body plans three or more times from an ancestor that was not carcinized.
How does a crustacean become a crab? - EurekAlert!
True crabs are decapod crustaceansand belong to a group called the Brachyura. They have a very short projecting "tail" and their small abdomens are completely hidden under the thorax. There are almost 7,000 speciesof true crabs with over 800 species freshwater.
True crabs - Crustaceans
Which crabs are not true crabs?
True crabs have a short abdomen which is curled underneath their bodies; false crabs have a longer abdominal segment that is less well-protected. Hermit crabs are false crabs which use borrowed mollusk shells to house and protect their abdomens.
Crabs - Crustaceans - David Hall