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The decapod (crustaceans, such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (). [1] [2] Each segment may possess one pair of appendages, although in various groups these may be reduced or missing.
One of Rudyard Kipling's Just So Stories, The Crab that Played with the Sea, tells the story of a gigantic crab who made the waters of the sea go up and down, like the tides. [54] The auction for the crab quota in 2019, Russia is the largest revenue auction in the world except the spectrum auctions.
A shed carapace of a lady crab, part of the hard exoskeleton Body structure of a typical crustacean – krill. The body of a crustacean is composed of segments, which are grouped into three regions: the cephalon or head, [5] the pereon or thorax, [6] and the pleon or abdomen. [7]
Diagram highlighting the telson of the prawn Litopenaeus setiferus Telson (arrow no. 3) of the horseshoe crab Carcinoscorpius rotundicauda. The telson (from Ancient Greek τέλσον 'headlands, limit') is the hindmost division of the body of an arthropod.
Horseshoe crab being served in Thailand (Si Racha, Chonburi Province, 2007). Though they have little meat, horseshoe crabs are valued as a delicacy in some parts of East and Southeast Asia. [56] The meat is white, has a rubbery texture similar to lobster, and possesses a slightly salty aftertaste. [56]
Diagram of a single maxilla from the cockroach Periplaneta americana showing the anatomy and musculature The generalized condition in hexapods is for the first pair of maxillae to consist of a basal triangular sclerite called the cardo and a large central sclerite called the stipes from which arise three processes: the lacinia, the galea and ...
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Hermit Crab young develop in stages, with the first two (the nauplius and protozoea) occurring inside the egg. Most hermit crab larvae hatch at the third stage, the zoea. In this larval stage, the crab has several long spines, a long, narrow abdomen, and large fringed antennae. Several zoeal moults are followed by the final larval stage, the ...