"Decapods" are an order of ten-footed crustaceans. Which of these are NOT decapods?

Krill is not a decapod because it belongs to a different order of crustaceans called Euphausiacea. Decapods, on the other hand, have ten legs and include well-known species like crabs, lobsters, and shrimp. While Krill are also small crustaceans that live in marine environments, they possess a different anatomical structure, with elongated bodies and fewer legs, making them distinct from decapods.