What does the word Decapoda mean?

1 : any of an order (Decapoda) of crustaceans (such as shrimp, lobsters, and crabs) with five pairs of thoracic appendages one or more of which are modified into pincers, with stalked eyes, and with the head and thorax fused into a cephalothorax and covered by a carapace.

How many legs does a decapod Have What does decapod mean?

ten legs
Any of various crustaceans of the order Decapoda, characteristically having ten legs, each joined to a segment of the thorax. Crabs, hermit crabs, lobsters, and shrimp are decapods.

What do you know about Decapoda?

The Decapoda or decapods (literally “ten-footed”) are an order of crustaceans within the class Malacostraca, including many familiar groups, such as crayfish, crabs, lobsters, prawns, and shrimp. Most decapods are scavengers.

What is unique about a decapods stomach?

Shrimps and other decapods that don’t have heavy or thick exoskeletons use their abdominal appendages to swim forward. At the other extreme, the true crabs or brachyurans have lost most of their abdominal appendages; their abdomen plays no role in locomotion.

What are three examples of Decapods?

Decapod, (order Decapoda), any of more than 8,000 species of crustaceans (phylum Arthropoda) that include shrimp, lobsters, crayfish, hermit crabs, and crabs.

Do Decapods have 10 legs?

Decapods have ten legs. The last five pair of appendages on their thorax are walking legs. In some species, the first pair of walking legs have large pinchers or chelipeds. Decapods have three pairs of appendages, or maxillipeds, on their heads that make up their mouthparts.

Why are decapods important to humans?

Decapods are the order of invertebrate crustaceans which includes crayfish, crabs, lobsters, prawns and shrimps. They are useful and appropriate models for many areas of biological research, and are also important to many economies as highly-valued edible shellfish.

Do decapods have 10 legs?

Why are squids called Decapods?

Cephalopods. The Phylum Mollusca is one of the largest and most diverse of the animal groups. The name Mollusca comes from the Latin word mollis (meaning soft). The word mollusc was first used by the French zoologist Cuvier in the late 1700’s to describe squids and cuttlefishes, members of the Class Cephalopoda.

What is the biggest lobster ever caught?

The world’s largest recorded lobster was a 44-pounder (20-kg) caught off Nova Scotia in 1977, according to the Guinness Book of World Records. Maine lobstermen hauled in a record 100 million pounds (45.4 tonnes) of lobsters last year, due in part to overfishing of predators such as haddock, cod and monkfish.

Which is the best description of a Decapoda?

Definition of Decapoda. 1 : an order of Crustaceans (division Eucarida) including the most highly organized crustaceans (as shrimps, lobsters, crabs) having five pairs of thoracic appendages one or more of which are modified into pincers, a pair of movable stalked eyes, mouthparts consisting of a pair of mandibles, two pairs of maxillae,…

Which is an example of a decapod crustacean?

1 : any of an order (Decapoda) of crustaceans (such as shrimp, lobsters, and crabs) with five pairs of thoracic appendages one or more of which are modified into pincers, with stalked eyes, and with the head and thorax fused into a cephalothorax and covered by a carapace

Where does the name Decapoda come from in Greek?

As the name Decapoda (from the Greek δέκα, deca-, “ten”, and πούς / ποδός, -pod, “foot”) implies, ten of these appendages are considered legs. They are the pereiopods , found on the last five thoracic segments. [3]

How many legs are there in a Decapoda?

As the name Decapoda (from the Greek δέκα, deca-, “ten”, and πούς / ποδός, -pod, “foot”) implies, all decapods have what are considered ten legs, in the form of five pairs of thoracic appendages on the last five thoracic segments. Decapods can have as many as twenty appendages, arranged in one pair per body segment.